This updates ONOS src tree to commit id

03fa5e571cabbd001ddb1598847e1150b11c7333

Change-Id: I13b554026d6f902933e35887d29bd5fdb669c0bd
Signed-off-by: Ashlee Young <ashlee@wildernessvoice.com>

24 files changed, 2666 insertions, 0 deletions

diff --git a/framework/src/onos/apps/dhcp/app/src/main/java/org/onosproject/dhcp/cli/DhcpLeaseDetails.java b/framework/src/onos/apps/dhcp/app/src/main/java/org/onosproject/dhcp/cli/DhcpLeaseDetails.java
new file mode 100644
index 00000000..95f49e69
--- /dev/null
+++ b/framework/src/onos/apps/dhcp/app/src/main/java/org/onosproject/dhcp/cli/DhcpLeaseDetails.java
@@ -0,0 +1,41 @@
+/*
+ * Copyright 2014 Open Networking Laboratory
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.onosproject.dhcp.cli;
+
+import org.apache.karaf.shell.commands.Command;
+import org.onosproject.cli.AbstractShellCommand;
+import org.onosproject.dhcp.DhcpService;
+
+/**
+ * Lists all the default lease parameters offered by the DHCP Server.
+ */
+@Command(scope = "onos", name = "dhcp-lease",
+        description = "Lists all the default lease parameters offered by the DHCP Server")
+public class DhcpLeaseDetails extends AbstractShellCommand {
+
+    private static final String DHCP_LEASE_FORMAT = "Lease Time: %ds\nRenewal Time: %ds\nRebinding Time: %ds";
+
+    @Override
+    protected void execute() {
+
+        DhcpService dhcpService = AbstractShellCommand.get(DhcpService.class);
+        int leaseTime = dhcpService.getLeaseTime();
+        int renewTime = dhcpService.getRenewalTime();
+        int rebindTime = dhcpService.getRebindingTime();
+
+        print(DHCP_LEASE_FORMAT, leaseTime, renewTime, rebindTime);
+    }
+}
diff --git a/framework/src/onos/apps/dhcp/app/src/main/java/org/onosproject/dhcp/cli/DhcpListAllMappings.java b/framework/src/onos/apps/dhcp/app/src/main/java/org/onosproject/dhcp/cli/DhcpListAllMappings.java
new file mode 100644
index 00000000..209ba683
--- /dev/null
+++ b/framework/src/onos/apps/dhcp/app/src/main/java/org/onosproject/dhcp/cli/DhcpListAllMappings.java
@@ -0,0 +1,44 @@
+/*
+ * Copyright 2015 Open Networking Laboratory
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.onosproject.dhcp.cli;
+
+import org.apache.karaf.shell.commands.Command;
+import org.onosproject.cli.AbstractShellCommand;
+import org.onosproject.dhcp.DhcpService;
+import org.onosproject.dhcp.IpAssignment;
+import org.onosproject.net.HostId;
+
+import java.util.Map;
+
+/**
+ * Lists all the MacAddress to IP Address mappings held by the DHCP Server.
+ */
+@Command(scope = "onos", name = "dhcp-list",
+        description = "Lists all the MAC to IP mappings held by the DHCP Server")
+public class DhcpListAllMappings extends AbstractShellCommand {
+
+    private static final String DHCP_MAPPING_FORMAT = "MAC ID: %s -> IP ASSIGNED %s";
+    @Override
+    protected void execute() {
+
+        DhcpService dhcpService = AbstractShellCommand.get(DhcpService.class);
+        Map<HostId, IpAssignment> allocationMap = dhcpService.listMapping();
+
+        for (Map.Entry<HostId, IpAssignment> entry : allocationMap.entrySet()) {
+            print(DHCP_MAPPING_FORMAT, entry.getKey().toString(), entry.getValue().ipAddress().toString());
+        }
+    }
+}
diff --git a/framework/src/onos/apps/dhcp/app/src/main/java/org/onosproject/dhcp/cli/DhcpRemoveStaticMapping.java b/framework/src/onos/apps/dhcp/app/src/main/java/org/onosproject/dhcp/cli/DhcpRemoveStaticMapping.java
new file mode 100644
index 00000000..a92cd250
--- /dev/null
+++ b/framework/src/onos/apps/dhcp/app/src/main/java/org/onosproject/dhcp/cli/DhcpRemoveStaticMapping.java
@@ -0,0 +1,56 @@
+/*
+ * Copyright 2014 Open Networking Laboratory
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.onosproject.dhcp.cli;
+
+import org.apache.karaf.shell.commands.Argument;
+import org.apache.karaf.shell.commands.Command;
+import org.onlab.packet.MacAddress;
+import org.onosproject.cli.AbstractShellCommand;
+import org.onosproject.dhcp.DhcpService;
+
+/**
+ * Removes a static MAC Address to IP Mapping from the DHCP Server.
+ */
+@Command(scope = "onos", name = "dhcp-remove-static-mapping",
+        description = "Removes a static MAC Address to IP Mapping from the DHCP Server")
+public class DhcpRemoveStaticMapping extends AbstractShellCommand {
+
+    @Argument(index = 0, name = "macAddr",
+            description = "MAC Address of the client",
+            required = true, multiValued = false)
+    String macAddr = null;
+
+    private static final String DHCP_SUCCESS = "Static Mapping Successfully Removed.";
+    private static final String DHCP_FAILURE = "Static Mapping Removal Failed. " +
+                                                "Either the mapping does not exist or it is not static.";
+
+    @Override
+    protected void execute() {
+        DhcpService dhcpService = AbstractShellCommand.get(DhcpService.class);
+
+        try {
+            MacAddress macID = MacAddress.valueOf(macAddr);
+            if (dhcpService.removeStaticMapping(macID)) {
+                print(DHCP_SUCCESS);
+            } else {
+                print(DHCP_FAILURE);
+            }
+
+        } catch (IllegalArgumentException e) {
+            print(e.getMessage());
+        }
+    }
+}
diff --git a/framework/src/onos/apps/dhcp/app/src/main/java/org/onosproject/dhcp/cli/DhcpSetStaticMapping.java b/framework/src/onos/apps/dhcp/app/src/main/java/org/onosproject/dhcp/cli/DhcpSetStaticMapping.java
new file mode 100644
index 00000000..9f4f6580
--- /dev/null
+++ b/framework/src/onos/apps/dhcp/app/src/main/java/org/onosproject/dhcp/cli/DhcpSetStaticMapping.java
@@ -0,0 +1,61 @@
+/*
+ * Copyright 2014 Open Networking Laboratory
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.onosproject.dhcp.cli;
+
+import org.apache.karaf.shell.commands.Argument;
+import org.apache.karaf.shell.commands.Command;
+import org.onlab.packet.Ip4Address;
+import org.onlab.packet.MacAddress;
+import org.onosproject.cli.AbstractShellCommand;
+import org.onosproject.dhcp.DhcpService;
+
+/**
+ * Registers a static MAC Address to IP Mapping with the DHCP Server.
+ */
+@Command(scope = "onos", name = "dhcp-set-static-mapping",
+        description = "Registers a static MAC Address to IP Mapping with the DHCP Server")
+public class DhcpSetStaticMapping extends AbstractShellCommand {
+
+    @Argument(index = 0, name = "macAddr",
+            description = "MAC Address of the client",
+            required = true, multiValued = false)
+    String macAddr = null;
+
+    @Argument(index = 1, name = "ipAddr",
+            description = "IP Address requested for static mapping",
+            required = true, multiValued = false)
+    String ipAddr = null;
+
+    private static final String DHCP_SUCCESS = "Static Mapping Successfully Added.";
+    private static final String DHCP_FAILURE = "Static Mapping Failed. The IP maybe unavailable.";
+    @Override
+    protected void execute() {
+        DhcpService dhcpService = AbstractShellCommand.get(DhcpService.class);
+
+        try {
+            MacAddress macID = MacAddress.valueOf(macAddr);
+            Ip4Address ipAddress = Ip4Address.valueOf(ipAddr);
+            if (dhcpService.setStaticMapping(macID, ipAddress)) {
+                print(DHCP_SUCCESS);
+            } else {
+                print(DHCP_FAILURE);
+            }
+
+        } catch (IllegalArgumentException e) {
+            print(e.getMessage());
+        }
+    }
+}
diff --git a/framework/src/onos/apps/dhcp/app/src/main/java/org/onosproject/dhcp/cli/FreeIpCompleter.java b/framework/src/onos/apps/dhcp/app/src/main/java/org/onosproject/dhcp/cli/FreeIpCompleter.java
new file mode 100644
index 00000000..228d70fd
--- /dev/null
+++ b/framework/src/onos/apps/dhcp/app/src/main/java/org/onosproject/dhcp/cli/FreeIpCompleter.java
@@ -0,0 +1,48 @@
+/*
+ * Copyright 2014 Open Networking Laboratory
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.onosproject.dhcp.cli;
+
+import org.apache.karaf.shell.console.Completer;
+import org.apache.karaf.shell.console.completer.StringsCompleter;
+import org.onlab.packet.Ip4Address;
+import org.onosproject.cli.AbstractShellCommand;
+import org.onosproject.dhcp.DhcpService;
+
+import java.util.Iterator;
+import java.util.List;
+import java.util.SortedSet;
+
+/**
+ * Free IP Completer.
+ */
+public class FreeIpCompleter implements Completer {
+
+    @Override
+    public int complete(String buffer, int cursor, List<String> candidates) {
+        // Delegate string completer
+        StringsCompleter delegate = new StringsCompleter();
+        DhcpService dhcpService = AbstractShellCommand.get(DhcpService.class);
+        Iterator<Ip4Address> it = dhcpService.getAvailableIPs().iterator();
+        SortedSet<String> strings = delegate.getStrings();
+
+        while (it.hasNext()) {
+            strings.add(it.next().toString());
+        }
+
+        // Now let the completer do the work for figuring out what to offer.
+        return delegate.complete(buffer, cursor, candidates);
+    }
+}
diff --git a/framework/src/onos/apps/dhcp/app/src/main/java/org/onosproject/dhcp/cli/MacIdCompleter.java b/framework/src/onos/apps/dhcp/app/src/main/java/org/onosproject/dhcp/cli/MacIdCompleter.java
new file mode 100644
index 00000000..d6cd73a7
--- /dev/null
+++ b/framework/src/onos/apps/dhcp/app/src/main/java/org/onosproject/dhcp/cli/MacIdCompleter.java
@@ -0,0 +1,48 @@
+/*
+ * Copyright 2014 Open Networking Laboratory
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.onosproject.dhcp.cli;
+
+import org.apache.karaf.shell.console.Completer;
+import org.apache.karaf.shell.console.completer.StringsCompleter;
+import org.onosproject.cli.AbstractShellCommand;
+import org.onosproject.net.Host;
+import org.onosproject.net.host.HostService;
+
+import java.util.Iterator;
+import java.util.List;
+import java.util.SortedSet;
+
+/**
+ * MAC ID Completer.
+ */
+public class MacIdCompleter implements Completer {
+
+    @Override
+    public int complete(String buffer, int cursor, List<String> candidates) {
+        // Delegate string completer
+        StringsCompleter delegate = new StringsCompleter();
+        HostService service = AbstractShellCommand.get(HostService.class);
+        Iterator<Host> it = service.getHosts().iterator();
+        SortedSet<String> strings = delegate.getStrings();
+
+        while (it.hasNext()) {
+            strings.add(it.next().mac().toString());
+        }
+
+        // Now let the completer do the work for figuring out what to offer.
+        return delegate.complete(buffer, cursor, candidates);
+    }
+}
diff --git a/framework/src/onos/apps/dhcp/app/src/main/java/org/onosproject/dhcp/cli/package-info.java b/framework/src/onos/apps/dhcp/app/src/main/java/org/onosproject/dhcp/cli/package-info.java
new file mode 100644
index 00000000..f8780195
--- /dev/null
+++ b/framework/src/onos/apps/dhcp/app/src/main/java/org/onosproject/dhcp/cli/package-info.java
@@ -0,0 +1,20 @@
+/*
+ * Copyright 2015 Open Networking Laboratory
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * CLI implementation for sample application that assigns and manages DHCP leases.
+ */
+package org.onosproject.dhcp.cli;
\ No newline at end of file
diff --git a/framework/src/onos/apps/dhcp/app/src/main/java/org/onosproject/dhcp/impl/DhcpConfig.java b/framework/src/onos/apps/dhcp/app/src/main/java/org/onosproject/dhcp/impl/DhcpConfig.java
new file mode 100644
index 00000000..4353d623
--- /dev/null
+++ b/framework/src/onos/apps/dhcp/app/src/main/java/org/onosproject/dhcp/impl/DhcpConfig.java
@@ -0,0 +1,319 @@
+/*
+ * Copyright 2014 Open Networking Laboratory
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.onosproject.dhcp.impl;
+
+import org.onlab.packet.Ip4Address;
+import org.onlab.packet.MacAddress;
+import org.onosproject.core.ApplicationId;
+import org.onosproject.net.config.Config;
+import org.onosproject.net.config.basics.BasicElementConfig;
+
+/**
+ * DHCP Config class.
+ */
+public class DhcpConfig extends Config<ApplicationId> {
+
+    public static final String MY_IP = "ip";
+    public static final String MY_MAC = "mac";
+    public static final String SUBNET_MASK = "subnet";
+    public static final String BROADCAST_ADDRESS = "broadcast";
+    public static final String ROUTER_ADDRESS = "router";
+    public static final String DOMAIN_SERVER = "domain";
+    public static final String TTL = "ttl";
+    public static final String LEASE_TIME = "lease";
+    public static final String RENEW_TIME = "renew";
+    public static final String REBIND_TIME = "rebind";
+    public static final String TIMER_DELAY = "delay";
+    public static final String DEFAULT_TIMEOUT = "timeout";
+    public static final String START_IP = "startip";
+    public static final String END_IP = "endip";
+
+    public static final int DEFAULT = -1;
+
+    /**
+     * Returns the dhcp server ip.
+     *
+     * @return ip address or null if not set
+     */
+    public Ip4Address ip() {
+        String ip = get(MY_IP, null);
+        return ip != null ? Ip4Address.valueOf(ip) : null;
+    }
+
+    /**
+     * Sets the dhcp server ip.
+     *
+     * @param ip new ip address; null to clear
+     * @return self
+     */
+    public BasicElementConfig ip(String ip) {
+        return (BasicElementConfig) setOrClear(MY_IP, ip);
+    }
+
+    /**
+     * Returns the dhcp server mac.
+     *
+     * @return server mac or null if not set
+     */
+    public MacAddress mac() {
+        String mac = get(MY_MAC, null);
+        return mac != null ? MacAddress.valueOf(mac) : null;
+    }
+
+    /**
+     * Sets the dhcp server mac.
+     *
+     * @param mac new mac address; null to clear
+     * @return self
+     */
+    public BasicElementConfig mac(String mac) {
+        return (BasicElementConfig) setOrClear(MY_MAC, mac);
+    }
+
+    /**
+     * Returns the subnet mask.
+     *
+     * @return subnet mask or null if not set
+     */
+    public Ip4Address subnetMask() {
+        String ip = get(SUBNET_MASK, null);
+        return ip != null ? Ip4Address.valueOf(ip) : null;
+    }
+
+    /**
+     * Sets the subnet mask.
+     *
+     * @param subnet new subnet mask; null to clear
+     * @return self
+     */
+    public BasicElementConfig subnetMask(String subnet) {
+        return (BasicElementConfig) setOrClear(SUBNET_MASK, subnet);
+    }
+
+    /**
+     * Returns the broadcast address.
+     *
+     * @return broadcast address or null if not set
+     */
+    public Ip4Address broadcastAddress() {
+        String ip = get(BROADCAST_ADDRESS, null);
+        return ip != null ? Ip4Address.valueOf(ip) : null;
+    }
+
+    /**
+     * Sets the broadcast address.
+     *
+     * @param broadcast new broadcast address; null to clear
+     * @return self
+     */
+    public BasicElementConfig broadcastAddress(String broadcast) {
+        return (BasicElementConfig) setOrClear(BROADCAST_ADDRESS, broadcast);
+    }
+
+    /**
+     * Returns the Time To Live for the reply packets.
+     *
+     * @return ttl or -1 if not set
+     */
+    public int ttl() {
+        return get(TTL, DEFAULT);
+    }
+
+    /**
+     * Sets the Time To Live for the reply packets.
+     *
+     * @param ttl new ttl; null to clear
+     * @return self
+     */
+    public BasicElementConfig ttl(int ttl) {
+        return (BasicElementConfig) setOrClear(TTL, ttl);
+    }
+
+    /**
+     * Returns the Lease Time offered by the DHCP Server.
+     *
+     * @return lease time or -1 if not set
+     */
+    public int leaseTime() {
+        return get(LEASE_TIME, DEFAULT);
+    }
+
+    /**
+     * Sets the Lease Time offered by the DHCP Server.
+     *
+     * @param lease new lease time; null to clear
+     * @return self
+     */
+    public BasicElementConfig leaseTime(int lease) {
+        return (BasicElementConfig) setOrClear(LEASE_TIME, lease);
+    }
+
+    /**
+     * Returns the Renew Time offered by the DHCP Server.
+     *
+     * @return renew time or -1 if not set
+     */
+    public int renewTime() {
+        return get(RENEW_TIME, DEFAULT);
+    }
+
+    /**
+     * Sets the Renew Time offered by the DHCP Server.
+     *
+     * @param renew new renew time; null to clear
+     * @return self
+     */
+    public BasicElementConfig renewTime(int renew) {
+        return (BasicElementConfig) setOrClear(RENEW_TIME, renew);
+    }
+
+    /**
+     * Returns the Rebind Time offered by the DHCP Server.
+     *
+     * @return rebind time or -1 if not set
+     */
+    public int rebindTime() {
+        return get(REBIND_TIME, DEFAULT);
+    }
+
+    /**
+     * Sets the Rebind Time offered by the DHCP Server.
+     *
+     * @param rebind new rebind time; null to clear
+     * @return self
+     */
+    public BasicElementConfig rebindTime(int rebind) {
+        return (BasicElementConfig) setOrClear(REBIND_TIME, rebind);
+    }
+
+    /**
+     * Returns the Router Address.
+     *
+     * @return router address or null if not set
+     */
+    public Ip4Address routerAddress() {
+        String ip = get(ROUTER_ADDRESS, null);
+        return ip != null ? Ip4Address.valueOf(ip) : null;
+    }
+
+    /**
+     * Sets the Router Address.
+     *
+     * @param router new router address; null to clear
+     * @return self
+     */
+    public BasicElementConfig routerAddress(String router) {
+        return (BasicElementConfig) setOrClear(ROUTER_ADDRESS, router);
+    }
+
+    /**
+     * Returns the Domain Server Address.
+     *
+     * @return domain server address or null if not set
+     */
+    public Ip4Address domainServer() {
+        String ip = get(DOMAIN_SERVER, null);
+        return ip != null ? Ip4Address.valueOf(ip) : null;
+    }
+
+    /**
+     * Sets the Domain Server Address.
+     *
+     * @param domain new domain server address; null to clear
+     * @return self
+     */
+    public BasicElementConfig domainServer(String domain) {
+        return (BasicElementConfig) setOrClear(DOMAIN_SERVER, domain);
+    }
+
+    /**
+     * Returns the delay in minutes after which the dhcp server will purge expired entries.
+     *
+     * @return time delay or -1 if not set
+     */
+    public int timerDelay() {
+        return get(TIMER_DELAY, DEFAULT);
+    }
+
+    /**
+     * Sets the delay after which the dhcp server will purge expired entries.
+     *
+     * @param delay new time delay; null to clear
+     * @return self
+     */
+    public BasicElementConfig timerDelay(int delay) {
+        return (BasicElementConfig) setOrClear(TIMER_DELAY, delay);
+    }
+
+    /**
+     * Returns the default timeout for pending assignments.
+     *
+     * @return default timeout or -1 if not set
+     */
+    public int defaultTimeout() {
+        return get(DEFAULT_TIMEOUT, DEFAULT);
+    }
+
+    /**
+     * Sets the default timeout for pending assignments.
+     *
+     * @param defaultTimeout new default timeout; null to clear
+     * @return self
+     */
+    public BasicElementConfig defaultTimeout(int defaultTimeout) {
+        return (BasicElementConfig) setOrClear(DEFAULT_TIMEOUT, defaultTimeout);
+    }
+
+    /**
+     * Returns the start IP for the available IP Range.
+     *
+     * @return start IP or null if not set
+     */
+    public Ip4Address startIp() {
+        String ip = get(START_IP, null);
+        return ip != null ? Ip4Address.valueOf(ip) : null;
+    }
+
+    /**
+     * Sets the start IP for the available IP Range.
+     *
+     * @param startIp new start IP; null to clear
+     * @return self
+     */
+    public BasicElementConfig startIp(String startIp) {
+        return (BasicElementConfig) setOrClear(START_IP, startIp);
+    }
+
+    /**
+     * Returns the end IP for the available IP Range.
+     *
+     * @return end IP or null if not set
+     */
+    public Ip4Address endIp() {
+        String ip = get(END_IP, null);
+        return ip != null ? Ip4Address.valueOf(ip) : null;
+    }
+
+    /**
+     * Sets the end IP for the available IP Range.
+     *
+     * @param endIp new end IP; null to clear
+     * @return self
+     */
+    public BasicElementConfig endIp(String endIp) {
+        return (BasicElementConfig) setOrClear(END_IP, endIp);
+    }
+}
diff --git a/framework/src/onos/apps/dhcp/app/src/main/java/org/onosproject/dhcp/impl/DhcpManager.java b/framework/src/onos/apps/dhcp/app/src/main/java/org/onosproject/dhcp/impl/DhcpManager.java
new file mode 100644
index 00000000..96d94a2b
--- /dev/null
+++ b/framework/src/onos/apps/dhcp/app/src/main/java/org/onosproject/dhcp/impl/DhcpManager.java
@@ -0,0 +1,699 @@
+/*
+ * Copyright 2015 Open Networking Laboratory
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.onosproject.dhcp.impl;
+
+import com.google.common.collect.ImmutableSet;
+import org.apache.felix.scr.annotations.Activate;
+import org.apache.felix.scr.annotations.Component;
+import org.apache.felix.scr.annotations.Deactivate;
+import org.apache.felix.scr.annotations.Reference;
+import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.apache.felix.scr.annotations.Service;
+import org.jboss.netty.util.Timeout;
+import org.jboss.netty.util.TimerTask;
+import org.onlab.packet.ARP;
+import org.onlab.packet.DHCP;
+import org.onlab.packet.DHCPOption;
+import org.onlab.packet.DHCPPacketType;
+import org.onlab.packet.Ethernet;
+import org.onlab.packet.IPv4;
+import org.onlab.packet.Ip4Address;
+import org.onlab.packet.IpAddress;
+import org.onlab.packet.MacAddress;
+import org.onlab.packet.TpPort;
+import org.onlab.packet.UDP;
+import org.onlab.packet.VlanId;
+import org.onlab.util.Timer;
+import org.onosproject.core.ApplicationId;
+import org.onosproject.core.CoreService;
+import org.onosproject.dhcp.DhcpService;
+import org.onosproject.dhcp.DhcpStore;
+import org.onosproject.dhcp.IpAssignment;
+import org.onosproject.net.ConnectPoint;
+import org.onosproject.net.Host;
+import org.onosproject.net.HostId;
+import org.onosproject.net.HostLocation;
+import org.onosproject.net.config.ConfigFactory;
+import org.onosproject.net.config.NetworkConfigEvent;
+import org.onosproject.net.config.NetworkConfigListener;
+import org.onosproject.net.config.NetworkConfigRegistry;
+import org.onosproject.net.flow.DefaultTrafficSelector;
+import org.onosproject.net.flow.DefaultTrafficTreatment;
+import org.onosproject.net.flow.TrafficSelector;
+import org.onosproject.net.flow.TrafficTreatment;
+import org.onosproject.net.host.DefaultHostDescription;
+import org.onosproject.net.host.HostProvider;
+import org.onosproject.net.host.HostProviderRegistry;
+import org.onosproject.net.host.HostProviderService;
+import org.onosproject.net.packet.DefaultOutboundPacket;
+import org.onosproject.net.packet.PacketContext;
+import org.onosproject.net.packet.PacketPriority;
+import org.onosproject.net.packet.PacketProcessor;
+import org.onosproject.net.packet.PacketService;
+import org.onosproject.net.provider.AbstractProvider;
+import org.onosproject.net.provider.ProviderId;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.nio.ByteBuffer;
+import java.util.ArrayList;
+import java.util.Date;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Objects;
+import java.util.Set;
+import java.util.concurrent.TimeUnit;
+
+import static org.onlab.packet.MacAddress.valueOf;
+import static org.onosproject.net.config.basics.SubjectFactories.APP_SUBJECT_FACTORY;
+
+/**
+ * Skeletal ONOS DHCP Server application.
+ */
+@Component(immediate = true)
+@Service
+public class DhcpManager implements DhcpService {
+
+    private static final ProviderId PID = new ProviderId("of", "org.onosproject.dhcp", true);
+    private final Logger log = LoggerFactory.getLogger(getClass());
+
+    private final InternalConfigListener cfgListener = new InternalConfigListener();
+
+    private final Set<ConfigFactory> factories = ImmutableSet.of(
+            new ConfigFactory<ApplicationId, DhcpConfig>(APP_SUBJECT_FACTORY,
+                    DhcpConfig.class,
+                    "dhcp") {
+                @Override
+                public DhcpConfig createConfig() {
+                    return new DhcpConfig();
+                }
+            }
+    );
+    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    protected NetworkConfigRegistry cfgService;
+
+    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    protected PacketService packetService;
+
+    private DHCPPacketProcessor processor = new DHCPPacketProcessor();
+
+    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    protected CoreService coreService;
+
+    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    protected DhcpStore dhcpStore;
+
+    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    protected HostProviderRegistry hostProviderRegistry;
+
+    protected HostProviderService hostProviderService;
+
+    private final HostProvider hostProvider = new InternalHostProvider();
+
+    private ApplicationId appId;
+
+    // Hardcoded values are default values.
+
+    private static Ip4Address myIP = Ip4Address.valueOf("10.0.0.2");
+
+    private static MacAddress myMAC = valueOf("4f:4f:4f:4f:4f:4f");
+
+    /**
+     * leaseTime - 10 mins or 600s.
+     * renewalTime - 5 mins or 300s.
+     * rebindingTime - 6 mins or 360s.
+     */
+
+    private static int leaseTime = 600;
+
+    private static int renewalTime = 300;
+
+    private static int rebindingTime = 360;
+
+    private static byte packetTTL = (byte) 127;
+
+    private static Ip4Address subnetMask = Ip4Address.valueOf("255.0.0.0");
+
+    private static Ip4Address broadcastAddress = Ip4Address.valueOf("10.255.255.255");
+
+    private static Ip4Address routerAddress = Ip4Address.valueOf("10.0.0.2");
+
+    private static Ip4Address domainServer = Ip4Address.valueOf("10.0.0.2");
+
+    private static final Ip4Address IP_BROADCAST = Ip4Address.valueOf("255.255.255.255");
+
+    protected Timeout timeout;
+
+    protected static int timerDelay = 2;
+
+    @Activate
+    protected void activate() {
+        // start the dhcp server
+        appId = coreService.registerApplication("org.onosproject.dhcp");
+
+        cfgService.addListener(cfgListener);
+        factories.forEach(cfgService::registerConfigFactory);
+        cfgListener.reconfigureNetwork(cfgService.getConfig(appId, DhcpConfig.class));
+
+        hostProviderService = hostProviderRegistry.register(hostProvider);
+        packetService.addProcessor(processor, PacketProcessor.director(0));
+        requestPackets();
+        timeout = Timer.getTimer().newTimeout(new PurgeListTask(), timerDelay, TimeUnit.MINUTES);
+        log.info("Started");
+    }
+
+    @Deactivate
+    protected void deactivate() {
+        cfgService.removeListener(cfgListener);
+        factories.forEach(cfgService::unregisterConfigFactory);
+        packetService.removeProcessor(processor);
+        hostProviderRegistry.unregister(hostProvider);
+        hostProviderService = null;
+        cancelPackets();
+        timeout.cancel();
+        log.info("Stopped");
+    }
+
+    /**
+     * Request packet in via PacketService.
+     */
+    private void requestPackets() {
+
+        TrafficSelector.Builder selectorServer = DefaultTrafficSelector.builder()
+                .matchEthType(Ethernet.TYPE_IPV4)
+                .matchIPProtocol(IPv4.PROTOCOL_UDP)
+                .matchUdpDst(TpPort.tpPort(UDP.DHCP_SERVER_PORT))
+                .matchUdpSrc(TpPort.tpPort(UDP.DHCP_CLIENT_PORT));
+        packetService.requestPackets(selectorServer.build(), PacketPriority.CONTROL, appId);
+
+        selectorServer = DefaultTrafficSelector.builder()
+                .matchEthType(Ethernet.TYPE_ARP);
+        packetService.requestPackets(selectorServer.build(), PacketPriority.CONTROL, appId);
+    }
+
+    /**
+     * Cancel requested packets in via packet service.
+     */
+    private void cancelPackets() {
+        TrafficSelector.Builder selectorServer = DefaultTrafficSelector.builder()
+                .matchEthType(Ethernet.TYPE_IPV4)
+                .matchIPProtocol(IPv4.PROTOCOL_UDP)
+                .matchUdpDst(TpPort.tpPort(UDP.DHCP_SERVER_PORT))
+                .matchUdpSrc(TpPort.tpPort(UDP.DHCP_CLIENT_PORT));
+        packetService.cancelPackets(selectorServer.build(), PacketPriority.CONTROL, appId);
+
+        selectorServer = DefaultTrafficSelector.builder()
+                .matchEthType(Ethernet.TYPE_ARP);
+        packetService.cancelPackets(selectorServer.build(), PacketPriority.CONTROL, appId);
+    }
+
+    @Override
+    public Map<HostId, IpAssignment> listMapping() {
+        return dhcpStore.listAssignedMapping();
+    }
+
+    @Override
+    public int getLeaseTime() {
+        return leaseTime;
+    }
+
+    @Override
+    public int getRenewalTime() {
+        return renewalTime;
+    }
+
+    @Override
+    public int getRebindingTime() {
+        return rebindingTime;
+    }
+
+    @Override
+    public boolean setStaticMapping(MacAddress macID, Ip4Address ipAddress) {
+        return dhcpStore.assignStaticIP(macID, ipAddress);
+    }
+
+    @Override
+    public boolean removeStaticMapping(MacAddress macID) {
+        return dhcpStore.removeStaticIP(macID);
+    }
+
+    @Override
+    public Iterable<Ip4Address> getAvailableIPs() {
+        return dhcpStore.getAvailableIPs();
+    }
+
+    private class DHCPPacketProcessor implements PacketProcessor {
+
+        /**
+         * Builds the DHCP Reply packet.
+         *
+         * @param packet the incoming Ethernet frame
+         * @param ipOffered the IP offered by the DHCP Server
+         * @param outgoingMessageType the message type of the outgoing packet
+         * @return the Ethernet reply frame
+         */
+        private Ethernet buildReply(Ethernet packet, Ip4Address ipOffered, byte outgoingMessageType) {
+
+            // Ethernet Frame.
+            Ethernet ethReply = new Ethernet();
+            ethReply.setSourceMACAddress(myMAC);
+            ethReply.setDestinationMACAddress(packet.getSourceMAC());
+            ethReply.setEtherType(Ethernet.TYPE_IPV4);
+            ethReply.setVlanID(packet.getVlanID());
+
+            // IP Packet
+            IPv4 ipv4Packet = (IPv4) packet.getPayload();
+            IPv4 ipv4Reply = new IPv4();
+            ipv4Reply.setSourceAddress(myIP.toInt());
+            ipv4Reply.setDestinationAddress(ipOffered.toInt());
+            ipv4Reply.setTtl(packetTTL);
+
+            // UDP Datagram.
+            UDP udpPacket = (UDP) ipv4Packet.getPayload();
+            UDP udpReply = new UDP();
+            udpReply.setSourcePort((byte) UDP.DHCP_SERVER_PORT);
+            udpReply.setDestinationPort((byte) UDP.DHCP_CLIENT_PORT);
+
+            // DHCP Payload.
+            DHCP dhcpPacket = (DHCP) udpPacket.getPayload();
+            DHCP dhcpReply = new DHCP();
+            dhcpReply.setOpCode(DHCP.OPCODE_REPLY);
+            dhcpReply.setFlags(dhcpPacket.getFlags());
+            dhcpReply.setGatewayIPAddress(dhcpPacket.getGatewayIPAddress());
+            dhcpReply.setClientHardwareAddress(dhcpPacket.getClientHardwareAddress());
+            dhcpReply.setTransactionId(dhcpPacket.getTransactionId());
+
+            if (outgoingMessageType != DHCPPacketType.DHCPNAK.getValue()) {
+                dhcpReply.setYourIPAddress(ipOffered.toInt());
+                dhcpReply.setServerIPAddress(myIP.toInt());
+                if (dhcpPacket.getGatewayIPAddress() == 0) {
+                    ipv4Reply.setDestinationAddress(IP_BROADCAST.toInt());
+                }
+            }
+            dhcpReply.setHardwareType(DHCP.HWTYPE_ETHERNET);
+            dhcpReply.setHardwareAddressLength((byte) 6);
+
+            // DHCP Options.
+            DHCPOption option = new DHCPOption();
+            List<DHCPOption> optionList = new ArrayList<>();
+
+            // DHCP Message Type.
+            option.setCode(DHCP.DHCPOptionCode.OptionCode_MessageType.getValue());
+            option.setLength((byte) 1);
+            byte[] optionData = {outgoingMessageType};
+            option.setData(optionData);
+            optionList.add(option);
+
+            // DHCP Server Identifier.
+            option = new DHCPOption();
+            option.setCode(DHCP.DHCPOptionCode.OptionCode_DHCPServerIp.getValue());
+            option.setLength((byte) 4);
+            option.setData(myIP.toOctets());
+            optionList.add(option);
+
+            if (outgoingMessageType != DHCPPacketType.DHCPNAK.getValue()) {
+
+                // IP Address Lease Time.
+                option = new DHCPOption();
+                option.setCode(DHCP.DHCPOptionCode.OptionCode_LeaseTime.getValue());
+                option.setLength((byte) 4);
+                option.setData(ByteBuffer.allocate(4).putInt(leaseTime).array());
+                optionList.add(option);
+
+                // IP Address Renewal Time.
+                option = new DHCPOption();
+                option.setCode(DHCP.DHCPOptionCode.OptionCode_RenewalTime.getValue());
+                option.setLength((byte) 4);
+                option.setData(ByteBuffer.allocate(4).putInt(renewalTime).array());
+                optionList.add(option);
+
+                // IP Address Rebinding Time.
+                option = new DHCPOption();
+                option.setCode(DHCP.DHCPOptionCode.OPtionCode_RebindingTime.getValue());
+                option.setLength((byte) 4);
+                option.setData(ByteBuffer.allocate(4).putInt(rebindingTime).array());
+                optionList.add(option);
+
+                // Subnet Mask.
+                option = new DHCPOption();
+                option.setCode(DHCP.DHCPOptionCode.OptionCode_SubnetMask.getValue());
+                option.setLength((byte) 4);
+                option.setData(subnetMask.toOctets());
+                optionList.add(option);
+
+                // Broadcast Address.
+                option = new DHCPOption();
+                option.setCode(DHCP.DHCPOptionCode.OptionCode_BroadcastAddress.getValue());
+                option.setLength((byte) 4);
+                option.setData(broadcastAddress.toOctets());
+                optionList.add(option);
+
+                // Router Address.
+                option = new DHCPOption();
+                option.setCode(DHCP.DHCPOptionCode.OptionCode_RouterAddress.getValue());
+                option.setLength((byte) 4);
+                option.setData(routerAddress.toOctets());
+                optionList.add(option);
+
+                // DNS Server Address.
+                option = new DHCPOption();
+                option.setCode(DHCP.DHCPOptionCode.OptionCode_DomainServer.getValue());
+                option.setLength((byte) 4);
+                option.setData(domainServer.toOctets());
+                optionList.add(option);
+            }
+
+            // End Option.
+            option = new DHCPOption();
+            option.setCode(DHCP.DHCPOptionCode.OptionCode_END.getValue());
+            option.setLength((byte) 1);
+            optionList.add(option);
+
+            dhcpReply.setOptions(optionList);
+
+            udpReply.setPayload(dhcpReply);
+            ipv4Reply.setPayload(udpReply);
+            ethReply.setPayload(ipv4Reply);
+
+            return ethReply;
+        }
+
+        /**
+         * Sends the Ethernet reply frame via the Packet Service.
+         *
+         * @param context the context of the incoming frame
+         * @param reply the Ethernet reply frame
+         */
+        private void sendReply(PacketContext context, Ethernet reply) {
+            if (reply != null) {
+                TrafficTreatment.Builder builder = DefaultTrafficTreatment.builder();
+                ConnectPoint sourcePoint = context.inPacket().receivedFrom();
+                builder.setOutput(sourcePoint.port());
+                context.block();
+                packetService.emit(new DefaultOutboundPacket(sourcePoint.deviceId(),
+                        builder.build(), ByteBuffer.wrap(reply.serialize())));
+            }
+        }
+
+        /**
+         * Processes the DHCP Payload and initiates a reply to the client.
+         *
+         * @param context context of the incoming message
+         * @param dhcpPayload the extracted DHCP payload
+         */
+        private void processDHCPPacket(PacketContext context, DHCP dhcpPayload) {
+            Ethernet packet = context.inPacket().parsed();
+            boolean flagIfRequestedIP = false;
+            boolean flagIfServerIP = false;
+            Ip4Address requestedIP = Ip4Address.valueOf("0.0.0.0");
+            Ip4Address serverIP = Ip4Address.valueOf("0.0.0.0");
+
+            if (dhcpPayload != null) {
+
+                DHCPPacketType incomingPacketType = DHCPPacketType.getType(0);
+                for (DHCPOption option : dhcpPayload.getOptions()) {
+                    if (option.getCode() == DHCP.DHCPOptionCode.OptionCode_MessageType.getValue()) {
+                        byte[] data = option.getData();
+                        incomingPacketType = DHCPPacketType.getType(data[0]);
+                    }
+                    if (option.getCode() == DHCP.DHCPOptionCode.OptionCode_RequestedIP.getValue()) {
+                        byte[] data = option.getData();
+                        requestedIP = Ip4Address.valueOf(data);
+                        flagIfRequestedIP = true;
+                    }
+                    if (option.getCode() == DHCP.DHCPOptionCode.OptionCode_DHCPServerIp.getValue()) {
+                        byte[] data = option.getData();
+                        serverIP = Ip4Address.valueOf(data);
+                        flagIfServerIP = true;
+                    }
+                }
+                DHCPPacketType outgoingPacketType;
+                MacAddress clientMAC = new MacAddress(dhcpPayload.getClientHardwareAddress());
+                VlanId vlanId = VlanId.vlanId(packet.getVlanID());
+                HostId hostId = HostId.hostId(clientMAC, vlanId);
+
+                if (incomingPacketType.getValue() == DHCPPacketType.DHCPDISCOVER.getValue()) {
+
+                    outgoingPacketType = DHCPPacketType.DHCPOFFER;
+                    Ip4Address ipOffered = dhcpStore.suggestIP(hostId, requestedIP);
+                    if (ipOffered != null) {
+                        Ethernet ethReply = buildReply(packet, ipOffered,
+                                (byte) outgoingPacketType.getValue());
+                        sendReply(context, ethReply);
+                    }
+
+                } else if (incomingPacketType.getValue() == DHCPPacketType.DHCPREQUEST.getValue()) {
+
+                    if (flagIfServerIP && flagIfRequestedIP) {
+                        // SELECTING state
+                        if (myIP.equals(serverIP)) {
+
+                            if (dhcpStore.assignIP(hostId, requestedIP, leaseTime)) {
+                                outgoingPacketType = DHCPPacketType.DHCPACK;
+                                discoverHost(context, requestedIP);
+                            } else {
+                                outgoingPacketType = DHCPPacketType.DHCPNAK;
+                            }
+                            Ethernet ethReply = buildReply(packet, requestedIP, (byte) outgoingPacketType.getValue());
+                            sendReply(context, ethReply);
+                        }
+                    } else if (flagIfRequestedIP) {
+                        // INIT-REBOOT state
+                        if (dhcpStore.assignIP(hostId, requestedIP, leaseTime)) {
+                            outgoingPacketType = DHCPPacketType.DHCPACK;
+                            Ethernet ethReply = buildReply(packet, requestedIP, (byte) outgoingPacketType.getValue());
+                            sendReply(context, ethReply);
+                            discoverHost(context, requestedIP);
+                        }
+
+                    } else {
+                        // RENEWING and REBINDING state
+                        int ciaadr = dhcpPayload.getClientIPAddress();
+                        if (ciaadr != 0) {
+                            Ip4Address clientIaddr = Ip4Address.valueOf(ciaadr);
+                            if (dhcpStore.assignIP(hostId, clientIaddr, leaseTime)) {
+                                outgoingPacketType = DHCPPacketType.DHCPACK;
+                                discoverHost(context, clientIaddr);
+                            } else if (packet.getEtherType() == Ethernet.TYPE_IPV4 &&
+                                    ((IPv4) packet.getPayload()).getDestinationAddress() == myIP.toInt()) {
+                                outgoingPacketType = DHCPPacketType.DHCPNAK;
+                            } else {
+                                return;
+                            }
+                            Ethernet ethReply = buildReply(packet, clientIaddr, (byte) outgoingPacketType.getValue());
+                            sendReply(context, ethReply);
+                        }
+                    }
+                } else if (incomingPacketType.getValue() == DHCPPacketType.DHCPRELEASE.getValue()) {
+                    Ip4Address ip4Address = dhcpStore.releaseIP(hostId);
+                    if (ip4Address != null) {
+                        hostProviderService.removeIpFromHost(hostId, ip4Address);
+                    }
+                }
+            }
+        }
+
+        /**
+         * Processes the ARP Payload and initiates a reply to the client.
+         *
+         * @param context context of the incoming message
+         * @param packet the ethernet payload
+         */
+        private void processARPPacket(PacketContext context, Ethernet packet) {
+
+            ARP arpPacket = (ARP) packet.getPayload();
+
+            ARP arpReply = (ARP) arpPacket.clone();
+            arpReply.setOpCode(ARP.OP_REPLY);
+
+            arpReply.setTargetProtocolAddress(arpPacket.getSenderProtocolAddress());
+            arpReply.setTargetHardwareAddress(arpPacket.getSenderHardwareAddress());
+            arpReply.setSenderProtocolAddress(arpPacket.getTargetProtocolAddress());
+            arpReply.setSenderHardwareAddress(myMAC.toBytes());
+
+            // Ethernet Frame.
+            Ethernet ethReply = new Ethernet();
+            ethReply.setSourceMACAddress(myMAC);
+            ethReply.setDestinationMACAddress(packet.getSourceMAC());
+            ethReply.setEtherType(Ethernet.TYPE_ARP);
+            ethReply.setVlanID(packet.getVlanID());
+
+            ethReply.setPayload(arpReply);
+            sendReply(context, ethReply);
+        }
+
+        /**
+         * Integrates hosts learned through DHCP into topology.
+         * @param context context of the incoming message
+         * @param ipAssigned IP Address assigned to the host by DHCP Manager
+         */
+        private void discoverHost(PacketContext context, Ip4Address ipAssigned) {
+            Ethernet packet = context.inPacket().parsed();
+            MacAddress mac = packet.getSourceMAC();
+            VlanId vlanId = VlanId.vlanId(packet.getVlanID());
+            HostLocation hostLocation = new HostLocation(context.inPacket().receivedFrom(), 0);
+
+            Set<IpAddress> ips = new HashSet<>();
+            ips.add(ipAssigned);
+
+            HostId hostId = HostId.hostId(mac, vlanId);
+            DefaultHostDescription desc = new DefaultHostDescription(mac, vlanId, hostLocation, ips);
+            hostProviderService.hostDetected(hostId, desc);
+        }
+
+
+        @Override
+        public void process(PacketContext context) {
+            Ethernet packet = context.inPacket().parsed();
+            if (packet == null) {
+                return;
+            }
+
+            if (packet.getEtherType() == Ethernet.TYPE_IPV4) {
+                IPv4 ipv4Packet = (IPv4) packet.getPayload();
+
+                if (ipv4Packet.getProtocol() == IPv4.PROTOCOL_UDP) {
+                    UDP udpPacket = (UDP) ipv4Packet.getPayload();
+
+                    if (udpPacket.getDestinationPort() == UDP.DHCP_SERVER_PORT &&
+                            udpPacket.getSourcePort() == UDP.DHCP_CLIENT_PORT) {
+                        // This is meant for the dhcp server so process the packet here.
+
+                        DHCP dhcpPayload = (DHCP) udpPacket.getPayload();
+                        processDHCPPacket(context, dhcpPayload);
+                    }
+                }
+            } else if (packet.getEtherType() == Ethernet.TYPE_ARP) {
+                ARP arpPacket = (ARP) packet.getPayload();
+
+                if ((arpPacket.getOpCode() == ARP.OP_REQUEST) &&
+                        Objects.equals(myIP, Ip4Address.valueOf(arpPacket.getTargetProtocolAddress()))) {
+
+                    processARPPacket(context, packet);
+
+                }
+            }
+        }
+    }
+
+    private class InternalConfigListener implements NetworkConfigListener {
+
+        /**
+         * Reconfigures the DHCP Server according to the configuration parameters passed.
+         *
+         * @param cfg configuration object
+         */
+        private void reconfigureNetwork(DhcpConfig cfg) {
+            if (cfg == null) {
+                return;
+            }
+            if (cfg.ip() != null) {
+                myIP = cfg.ip();
+            }
+            if (cfg.mac() != null) {
+                myMAC = cfg.mac();
+            }
+            if (cfg.subnetMask() != null) {
+                subnetMask = cfg.subnetMask();
+            }
+            if (cfg.broadcastAddress() != null) {
+                broadcastAddress = cfg.broadcastAddress();
+            }
+            if (cfg.routerAddress() != null) {
+                routerAddress = cfg.routerAddress();
+            }
+            if (cfg.domainServer() != null) {
+                domainServer = cfg.domainServer();
+            }
+            if (cfg.ttl() != -1) {
+                packetTTL = (byte) cfg.ttl();
+            }
+            if (cfg.leaseTime() != -1) {
+                leaseTime = cfg.leaseTime();
+            }
+            if (cfg.renewTime() != -1) {
+                renewalTime = cfg.renewTime();
+            }
+            if (cfg.rebindTime() != -1) {
+                rebindingTime = cfg.rebindTime();
+            }
+            if (cfg.defaultTimeout() != -1) {
+                dhcpStore.setDefaultTimeoutForPurge(cfg.defaultTimeout());
+            }
+            if (cfg.timerDelay() != -1) {
+                timerDelay = cfg.timerDelay();
+            }
+            if ((cfg.startIp() != null) && (cfg.endIp() != null)) {
+                dhcpStore.populateIPPoolfromRange(cfg.startIp(), cfg.endIp());
+            }
+        }
+
+
+        @Override
+        public void event(NetworkConfigEvent event) {
+
+            if ((event.type() == NetworkConfigEvent.Type.CONFIG_ADDED ||
+                    event.type() == NetworkConfigEvent.Type.CONFIG_UPDATED) &&
+                    event.configClass().equals(DhcpConfig.class)) {
+
+                DhcpConfig cfg = cfgService.getConfig(appId, DhcpConfig.class);
+                reconfigureNetwork(cfg);
+                log.info("Reconfigured");
+            }
+        }
+    }
+
+    private class InternalHostProvider extends AbstractProvider implements HostProvider {
+
+        /**
+         * Creates a provider with the supplier identifier.
+         */
+        protected InternalHostProvider() {
+            super(PID);
+        }
+
+        @Override
+        public void triggerProbe(Host host) {
+            // nothing to do
+        }
+    }
+
+    private class PurgeListTask implements TimerTask {
+
+        @Override
+        public void run(Timeout to) {
+            IpAssignment ipAssignment;
+            Date dateNow = new Date();
+
+            Map<HostId, IpAssignment> ipAssignmentMap = dhcpStore.listAllMapping();
+            for (Map.Entry<HostId, IpAssignment> entry: ipAssignmentMap.entrySet()) {
+                ipAssignment = entry.getValue();
+
+                long timeLapsed = dateNow.getTime() - ipAssignment.timestamp().getTime();
+                if ((ipAssignment.assignmentStatus() != IpAssignment.AssignmentStatus.Option_Expired) &&
+                        (ipAssignment.leasePeriod() > 0) && (timeLapsed > (ipAssignment.leasePeriodMs()))) {
+
+                    Ip4Address ip4Address = dhcpStore.releaseIP(entry.getKey());
+                    if (ip4Address != null) {
+                        hostProviderService.removeIpFromHost(entry.getKey(), ipAssignment.ipAddress());
+                    }
+                }
+            }
+            timeout = Timer.getTimer().newTimeout(new PurgeListTask(), timerDelay, TimeUnit.MINUTES);
+        }
+    }
+}
\ No newline at end of file
diff --git a/framework/src/onos/apps/dhcp/app/src/main/java/org/onosproject/dhcp/impl/DhcpUi.java b/framework/src/onos/apps/dhcp/app/src/main/java/org/onosproject/dhcp/impl/DhcpUi.java
new file mode 100644
index 00000000..bb2bd2c2
--- /dev/null
+++ b/framework/src/onos/apps/dhcp/app/src/main/java/org/onosproject/dhcp/impl/DhcpUi.java
@@ -0,0 +1,74 @@
+/*
+ * Copyright 2015 Open Networking Laboratory
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.onosproject.dhcp.impl;
+
+import com.google.common.collect.ImmutableList;
+import org.apache.felix.scr.annotations.Activate;
+import org.apache.felix.scr.annotations.Component;
+import org.apache.felix.scr.annotations.Deactivate;
+import org.apache.felix.scr.annotations.Reference;
+import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.apache.felix.scr.annotations.Service;
+import org.onosproject.ui.UiExtension;
+import org.onosproject.ui.UiExtensionService;
+import org.onosproject.ui.UiMessageHandlerFactory;
+import org.onosproject.ui.UiView;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.util.List;
+
+import static org.onosproject.ui.UiView.Category.NETWORK;
+
+/**
+ * Mechanism to stream data to the GUI.
+ */
+@Component(immediate = true, enabled = true)
+@Service(value = DhcpUi.class)
+public class DhcpUi {
+
+    private final Logger log = LoggerFactory.getLogger(getClass());
+    private static final ClassLoader CL = DhcpUi.class.getClassLoader();
+
+    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    protected UiExtensionService uiExtensionService;
+
+    private final UiMessageHandlerFactory messageHandlerFactory =
+            () -> ImmutableList.of(new DhcpViewMessageHandler());
+
+    private final List<UiView> views = ImmutableList.of(
+            new UiView(NETWORK, "dhcp", "DHCP Server")
+    );
+
+    private final UiExtension uiExtension =
+            new UiExtension.Builder(CL, views)
+                    .messageHandlerFactory(messageHandlerFactory)
+                    .resourcePath("gui")
+                    .build();
+
+    @Activate
+    protected void activate() {
+        uiExtensionService.register(uiExtension);
+        log.info("Started");
+    }
+
+    @Deactivate
+    protected void deactivate() {
+        uiExtensionService.unregister(uiExtension);
+        log.info("Stopped");
+    }
+
+}
\ No newline at end of file
diff --git a/framework/src/onos/apps/dhcp/app/src/main/java/org/onosproject/dhcp/impl/DhcpViewMessageHandler.java b/framework/src/onos/apps/dhcp/app/src/main/java/org/onosproject/dhcp/impl/DhcpViewMessageHandler.java
new file mode 100644
index 00000000..9ce65d5e
--- /dev/null
+++ b/framework/src/onos/apps/dhcp/app/src/main/java/org/onosproject/dhcp/impl/DhcpViewMessageHandler.java
@@ -0,0 +1,97 @@
+/*
+ * Copyright 2015 Open Networking Laboratory
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.onosproject.dhcp.impl;
+
+import com.fasterxml.jackson.databind.node.ObjectNode;
+import com.google.common.collect.ImmutableSet;
+import org.onosproject.cli.AbstractShellCommand;
+import org.onosproject.dhcp.DhcpService;
+import org.onosproject.dhcp.IpAssignment;
+import org.onosproject.net.HostId;
+import org.onosproject.ui.RequestHandler;
+import org.onosproject.ui.UiMessageHandler;
+import org.onosproject.ui.table.TableModel;
+import org.onosproject.ui.table.TableRequestHandler;
+
+import java.util.Collection;
+import java.util.Date;
+import java.util.Map;
+
+/**
+ * DHCPViewMessageHandler class implementation.
+ */
+public class DhcpViewMessageHandler extends UiMessageHandler {
+
+    private static final String DHCP_DATA_REQ = "dhcpDataRequest";
+    private static final String DHCP_DATA_RESP = "dhcpDataResponse";
+    private static final String DHCP = "dhcps";
+
+    private static final String HOST = "host";
+    private static final String IP = "ip";
+    private static final String LEASE = "lease";
+
+    private static final String[] COL_IDS = {
+            HOST, IP, LEASE
+    };
+
+    @Override
+    protected Collection<RequestHandler> createRequestHandlers() {
+        return ImmutableSet.of(
+                new DataRequestHandler()
+        );
+    }
+
+    // handler for dhcp table requests
+    private final class DataRequestHandler extends TableRequestHandler {
+
+        private DataRequestHandler() {
+            super(DHCP_DATA_REQ, DHCP_DATA_RESP, DHCP);
+        }
+
+        @Override
+        protected String defaultColumnId() {
+            return HOST;
+        }
+
+        @Override
+        protected String[] getColumnIds() {
+            return COL_IDS;
+        }
+
+        @Override
+        protected void populateTable(TableModel tm, ObjectNode payload) {
+            DhcpService dhcpService = AbstractShellCommand.get(DhcpService.class);
+            Map<HostId, IpAssignment> allocationMap = dhcpService.listMapping();
+
+            for (Map.Entry<HostId, IpAssignment> entry : allocationMap.entrySet()) {
+                populateRow(tm.addRow(), entry);
+            }
+        }
+
+        private void populateRow(TableModel.Row row, Map.Entry<HostId, IpAssignment> entry) {
+            if (entry.getValue().leasePeriod() > 0) {
+                Date now = new Date(entry.getValue().timestamp().getTime() + entry.getValue().leasePeriod());
+                row.cell(HOST, entry.getKey())
+                        .cell(IP, entry.getValue().ipAddress())
+                        .cell(LEASE, now.toString());
+            } else {
+                row.cell(HOST, entry.getKey())
+                        .cell(IP, entry.getValue().ipAddress())
+                        .cell(LEASE, "Infinite Static Lease");
+            }
+        }
+    }
+}
diff --git a/framework/src/onos/apps/dhcp/app/src/main/java/org/onosproject/dhcp/impl/DistributedDhcpStore.java b/framework/src/onos/apps/dhcp/app/src/main/java/org/onosproject/dhcp/impl/DistributedDhcpStore.java
new file mode 100644
index 00000000..63f69d40
--- /dev/null
+++ b/framework/src/onos/apps/dhcp/app/src/main/java/org/onosproject/dhcp/impl/DistributedDhcpStore.java
@@ -0,0 +1,328 @@
+/*
+ * Copyright 2015 Open Networking Laboratory
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.onosproject.dhcp.impl;
+
+import com.google.common.collect.ImmutableSet;
+import org.apache.felix.scr.annotations.Activate;
+import org.apache.felix.scr.annotations.Component;
+import org.apache.felix.scr.annotations.Deactivate;
+import org.apache.felix.scr.annotations.Reference;
+import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.apache.felix.scr.annotations.Service;
+import org.onlab.packet.Ip4Address;
+import org.onlab.packet.MacAddress;
+import org.onlab.util.KryoNamespace;
+import org.onosproject.dhcp.DhcpStore;
+import org.onosproject.dhcp.IpAssignment;
+import org.onosproject.net.HostId;
+import org.onosproject.store.serializers.KryoNamespaces;
+import org.onosproject.store.service.ConsistentMap;
+import org.onosproject.store.service.DistributedSet;
+import org.onosproject.store.service.Serializer;
+import org.onosproject.store.service.StorageService;
+import org.onosproject.store.service.Versioned;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.util.Date;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.Objects;
+
+/**
+ * Manages the pool of available IP Addresses in the network and
+ * Remembers the mapping between MAC ID and IP Addresses assigned.
+ */
+
+@Component(immediate = true)
+@Service
+public class DistributedDhcpStore implements DhcpStore {
+
+    private final Logger log = LoggerFactory.getLogger(getClass());
+
+    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    protected StorageService storageService;
+
+    private ConsistentMap<HostId, IpAssignment> allocationMap;
+
+    private DistributedSet<Ip4Address> freeIPPool;
+
+    private static Ip4Address startIPRange;
+
+    private static Ip4Address endIPRange;
+
+    // Hardcoded values are default values.
+
+    private static int timeoutForPendingAssignments = 60;
+
+    @Activate
+    protected void activate() {
+        allocationMap = storageService.<HostId, IpAssignment>consistentMapBuilder()
+                .withName("onos-dhcp-assignedIP")
+                .withSerializer(Serializer.using(
+                        new KryoNamespace.Builder()
+                                .register(KryoNamespaces.API)
+                                .register(IpAssignment.class,
+                                        IpAssignment.AssignmentStatus.class,
+                                        Date.class,
+                                        long.class,
+                                        Ip4Address.class)
+                                .build()))
+                .build();
+
+        freeIPPool = storageService.<Ip4Address>setBuilder()
+                .withName("onos-dhcp-freeIP")
+                .withSerializer(Serializer.using(KryoNamespaces.API))
+                .build();
+
+        log.info("Started");
+    }
+
+    @Deactivate
+    protected void deactivate() {
+        log.info("Stopped");
+    }
+
+    @Override
+    public Ip4Address suggestIP(HostId hostId, Ip4Address requestedIP) {
+
+        IpAssignment assignmentInfo;
+        if (allocationMap.containsKey(hostId)) {
+            assignmentInfo = allocationMap.get(hostId).value();
+            IpAssignment.AssignmentStatus status = assignmentInfo.assignmentStatus();
+            Ip4Address ipAddr = assignmentInfo.ipAddress();
+
+            if (status == IpAssignment.AssignmentStatus.Option_Assigned ||
+                    status == IpAssignment.AssignmentStatus.Option_Requested) {
+                // Client has a currently Active Binding.
+                if (ipWithinRange(ipAddr)) {
+                    return ipAddr;
+                }
+
+            } else if (status == IpAssignment.AssignmentStatus.Option_Expired) {
+                // Client has a Released or Expired Binding.
+                if (freeIPPool.contains(ipAddr)) {
+                    assignmentInfo = IpAssignment.builder()
+                            .ipAddress(ipAddr)
+                            .timestamp(new Date())
+                            .leasePeriod(timeoutForPendingAssignments)
+                            .assignmentStatus(IpAssignment.AssignmentStatus.Option_Requested)
+                            .build();
+                    if (freeIPPool.remove(ipAddr)) {
+                        allocationMap.put(hostId, assignmentInfo);
+                        return ipAddr;
+                    }
+                }
+            }
+        } else if (requestedIP.toInt() != 0) {
+            // Client has requested an IP.
+            if (freeIPPool.contains(requestedIP)) {
+                assignmentInfo = IpAssignment.builder()
+                        .ipAddress(requestedIP)
+                        .timestamp(new Date())
+                        .leasePeriod(timeoutForPendingAssignments)
+                        .assignmentStatus(IpAssignment.AssignmentStatus.Option_Requested)
+                        .build();
+                if (freeIPPool.remove(requestedIP)) {
+                    allocationMap.put(hostId, assignmentInfo);
+                    return requestedIP;
+                }
+            }
+        }
+
+        // Allocate a new IP from the server's pool of available IP.
+        Ip4Address nextIPAddr = fetchNextIP();
+        if (nextIPAddr != null) {
+            assignmentInfo = IpAssignment.builder()
+                    .ipAddress(nextIPAddr)
+                    .timestamp(new Date())
+                    .leasePeriod(timeoutForPendingAssignments)
+                    .assignmentStatus(IpAssignment.AssignmentStatus.Option_Requested)
+                    .build();
+
+            allocationMap.put(hostId, assignmentInfo);
+        }
+        return nextIPAddr;
+
+    }
+
+    @Override
+    public boolean assignIP(HostId hostId, Ip4Address ipAddr, int leaseTime) {
+
+        IpAssignment assignmentInfo;
+        if (allocationMap.containsKey(hostId)) {
+            assignmentInfo = allocationMap.get(hostId).value();
+            IpAssignment.AssignmentStatus status = assignmentInfo.assignmentStatus();
+
+            if (Objects.equals(assignmentInfo.ipAddress(), ipAddr) && ipWithinRange(ipAddr)) {
+
+                if (status == IpAssignment.AssignmentStatus.Option_Assigned ||
+                        status == IpAssignment.AssignmentStatus.Option_Requested) {
+                    // Client has a currently active binding with the server.
+                    assignmentInfo = IpAssignment.builder()
+                            .ipAddress(ipAddr)
+                            .timestamp(new Date())
+                            .leasePeriod(leaseTime)
+                            .assignmentStatus(IpAssignment.AssignmentStatus.Option_Assigned)
+                            .build();
+                    allocationMap.put(hostId, assignmentInfo);
+                    return true;
+                } else if (status == IpAssignment.AssignmentStatus.Option_Expired) {
+                    // Client has an expired binding with the server.
+                    if (freeIPPool.contains(ipAddr)) {
+                        assignmentInfo = IpAssignment.builder()
+                                .ipAddress(ipAddr)
+                                .timestamp(new Date())
+                                .leasePeriod(leaseTime)
+                                .assignmentStatus(IpAssignment.AssignmentStatus.Option_Assigned)
+                                .build();
+                        if (freeIPPool.remove(ipAddr)) {
+                            allocationMap.put(hostId, assignmentInfo);
+                            return true;
+                        }
+                    }
+                }
+            }
+        } else if (freeIPPool.contains(ipAddr)) {
+            assignmentInfo = IpAssignment.builder()
+                                    .ipAddress(ipAddr)
+                                    .timestamp(new Date())
+                                    .leasePeriod(leaseTime)
+                                    .assignmentStatus(IpAssignment.AssignmentStatus.Option_Assigned)
+                                    .build();
+            if (freeIPPool.remove(ipAddr)) {
+                allocationMap.put(hostId, assignmentInfo);
+                return true;
+            }
+        }
+        return false;
+    }
+
+    @Override
+    public Ip4Address releaseIP(HostId hostId) {
+        if (allocationMap.containsKey(hostId)) {
+            IpAssignment newAssignment = IpAssignment.builder(allocationMap.get(hostId).value())
+                                                    .assignmentStatus(IpAssignment.AssignmentStatus.Option_Expired)
+                                                    .build();
+            Ip4Address freeIP = newAssignment.ipAddress();
+            allocationMap.put(hostId, newAssignment);
+            if (ipWithinRange(freeIP)) {
+                freeIPPool.add(freeIP);
+            }
+            return freeIP;
+        }
+        return null;
+    }
+
+    @Override
+    public void setDefaultTimeoutForPurge(int timeInSeconds) {
+        timeoutForPendingAssignments = timeInSeconds;
+    }
+
+    @Override
+    public Map<HostId, IpAssignment> listAssignedMapping() {
+
+        Map<HostId, IpAssignment> validMapping = new HashMap<>();
+        IpAssignment assignment;
+        for (Map.Entry<HostId, Versioned<IpAssignment>> entry: allocationMap.entrySet()) {
+            assignment = entry.getValue().value();
+            if (assignment.assignmentStatus() == IpAssignment.AssignmentStatus.Option_Assigned) {
+                validMapping.put(entry.getKey(), assignment);
+            }
+        }
+        return validMapping;
+    }
+
+    @Override
+    public Map<HostId, IpAssignment> listAllMapping() {
+        Map<HostId, IpAssignment> validMapping = new HashMap<>();
+        for (Map.Entry<HostId, Versioned<IpAssignment>> entry: allocationMap.entrySet()) {
+            validMapping.put(entry.getKey(), entry.getValue().value());
+        }
+        return validMapping;
+    }
+
+    @Override
+    public boolean assignStaticIP(MacAddress macID, Ip4Address ipAddr) {
+        HostId host = HostId.hostId(macID);
+        return assignIP(host, ipAddr, -1);
+    }
+
+    @Override
+    public boolean removeStaticIP(MacAddress macID) {
+        HostId host = HostId.hostId(macID);
+        if (allocationMap.containsKey(host)) {
+            IpAssignment assignment = allocationMap.get(host).value();
+            Ip4Address freeIP = assignment.ipAddress();
+            if (assignment.leasePeriod() < 0) {
+                allocationMap.remove(host);
+                if (ipWithinRange(freeIP)) {
+                    freeIPPool.add(freeIP);
+                }
+                return true;
+            }
+        }
+        return false;
+    }
+
+    @Override
+    public Iterable<Ip4Address> getAvailableIPs() {
+        return ImmutableSet.copyOf(freeIPPool);
+    }
+
+    @Override
+    public void populateIPPoolfromRange(Ip4Address startIP, Ip4Address endIP) {
+        // Clear all entries from previous range.
+        allocationMap.clear();
+        freeIPPool.clear();
+        startIPRange = startIP;
+        endIPRange = endIP;
+
+        int lastIP = endIP.toInt();
+        Ip4Address nextIP;
+        for (int loopCounter = startIP.toInt(); loopCounter <= lastIP; loopCounter++) {
+            nextIP = Ip4Address.valueOf(loopCounter);
+            freeIPPool.add(nextIP);
+        }
+    }
+
+    /**
+     * Fetches the next available IP from the free pool pf IPs.
+     *
+     * @return the next available IP address
+     */
+    private Ip4Address fetchNextIP() {
+        for (Ip4Address freeIP : freeIPPool) {
+            if (freeIPPool.remove(freeIP)) {
+                return freeIP;
+            }
+        }
+        return null;
+    }
+
+    /**
+     * Returns true if the given ip is within the range of available IPs.
+     *
+     * @param ip given ip address
+     * @return true if within range, false otherwise
+     */
+    private boolean ipWithinRange(Ip4Address ip) {
+        if ((ip.toInt() >= startIPRange.toInt()) && (ip.toInt() <= endIPRange.toInt())) {
+            return true;
+        }
+        return false;
+    }
+}
diff --git a/framework/src/onos/apps/dhcp/app/src/main/java/org/onosproject/dhcp/impl/package-info.java b/framework/src/onos/apps/dhcp/app/src/main/java/org/onosproject/dhcp/impl/package-info.java
new file mode 100644
index 00000000..12e14e48
--- /dev/null
+++ b/framework/src/onos/apps/dhcp/app/src/main/java/org/onosproject/dhcp/impl/package-info.java
@@ -0,0 +1,20 @@
+/*
+ * Copyright 2015 Open Networking Laboratory
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * Implementation classes for sample application that assigns and manages DHCP leases.
+ */
+package org.onosproject.dhcp.impl;
\ No newline at end of file
diff --git a/framework/src/onos/apps/dhcp/app/src/main/java/org/onosproject/dhcp/rest/DHCPWebResource.java b/framework/src/onos/apps/dhcp/app/src/main/java/org/onosproject/dhcp/rest/DHCPWebResource.java
new file mode 100644
index 00000000..646ab7ea
--- /dev/null
+++ b/framework/src/onos/apps/dhcp/app/src/main/java/org/onosproject/dhcp/rest/DHCPWebResource.java
@@ -0,0 +1,164 @@
+/*
+ * Copyright 2015 Open Networking Laboratory
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.onosproject.dhcp.rest;
+
+import com.fasterxml.jackson.databind.JsonNode;
+import com.fasterxml.jackson.databind.node.ArrayNode;
+import com.fasterxml.jackson.databind.node.ObjectNode;
+import org.onlab.packet.Ip4Address;
+import org.onlab.packet.MacAddress;
+import org.onosproject.dhcp.DhcpService;
+import org.onosproject.dhcp.IpAssignment;
+import org.onosproject.net.HostId;
+import org.onosproject.rest.AbstractWebResource;
+
+import javax.ws.rs.Consumes;
+import javax.ws.rs.DELETE;
+import javax.ws.rs.GET;
+import javax.ws.rs.POST;
+import javax.ws.rs.Path;
+import javax.ws.rs.PathParam;
+import javax.ws.rs.core.MediaType;
+import javax.ws.rs.core.Response;
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.Map;
+
+/**
+ * Manage DHCP address assignments.
+ */
+@Path("dhcp")
+public class DHCPWebResource extends AbstractWebResource {
+
+    final DhcpService service = get(DhcpService.class);
+
+    /**
+     * Get DHCP server configuration data.
+     * Shows lease, renewal and rebinding times in seconds.
+     *
+     * @return 200 OK
+     */
+    @GET
+    @Path("config")
+    public Response getConfigs() {
+        DhcpService service = get(DhcpService.class);
+        ObjectNode node = mapper().createObjectNode()
+                .put("leaseTime", service.getLeaseTime())
+                .put("renewalTime", service.getRenewalTime())
+                .put("rebindingTime", service.getRebindingTime());
+        return ok(node.toString()).build();
+    }
+
+    /**
+     * Get all MAC/IP mappings.
+     * Shows all MAC/IP mappings held by the DHCP server.
+     *
+     * @return 200 OK
+     */
+    @GET
+    @Path("mappings")
+    public Response listMappings() {
+        ObjectNode root = mapper().createObjectNode();
+
+        final Map<HostId, IpAssignment> intents = service.listMapping();
+        ArrayNode arrayNode = root.putArray("mappings");
+        intents.entrySet().forEach(i -> arrayNode.add(mapper().createObjectNode()
+                .put("host", i.getKey().toString())
+                .put("ip", i.getValue().ipAddress().toString())));
+
+        return ok(root.toString()).build();
+    }
+
+
+
+    /**
+     * Get all available IPs.
+     * Shows all the IPs in the free pool of the DHCP Server.
+     *
+     * @return 200 OK
+     */
+    @GET
+    @Path("available")
+    public Response listAvailableIPs() {
+        final Iterable<Ip4Address> availableIPList = service.getAvailableIPs();
+
+        final ObjectNode root = mapper().createObjectNode();
+        ArrayNode arrayNode = root.putArray("availableIP");
+        availableIPList.forEach(i -> arrayNode.add(i.toString()));
+        return ok(root.toString()).build();
+    }
+
+    /**
+     * Post a new static MAC/IP binding.
+     * Registers a static binding to the DHCP server, and displays the current set of bindings.
+     *
+     * @param stream JSON stream
+     * @return 200 OK
+     */
+    @POST
+    @Path("mappings")
+    @Consumes(MediaType.APPLICATION_JSON)
+    public Response setMapping(InputStream stream) {
+        ObjectNode root = mapper().createObjectNode();
+
+        try {
+            ObjectNode jsonTree = (ObjectNode) mapper().readTree(stream);
+            JsonNode macID = jsonTree.get("mac");
+            JsonNode ip = jsonTree.get("ip");
+            if (macID != null && ip != null) {
+
+                if (!service.setStaticMapping(MacAddress.valueOf(macID.asText()),
+                        Ip4Address.valueOf(ip.asText()))) {
+                    throw new IllegalArgumentException("Static Mapping Failed. The IP maybe unavailable.");
+                }
+            }
+
+            final Map<HostId, IpAssignment> intents = service.listMapping();
+            ArrayNode arrayNode = root.putArray("mappings");
+            intents.entrySet().forEach(i -> arrayNode.add(mapper().createObjectNode()
+                    .put("host", i.getKey().toString())
+                    .put("ip", i.getValue().ipAddress().toString())));
+        } catch (IOException e) {
+            throw new IllegalArgumentException(e.getMessage());
+        }
+        return ok(root.toString()).build();
+    }
+
+    /**
+     * Delete a static MAC/IP binding.
+     * Removes a static binding from the DHCP Server, and displays the current set of bindings.
+     *
+     * @param macID mac address identifier
+     * @return 200 OK
+     */
+    @DELETE
+    @Path("mappings/{macID}")
+    public Response deleteMapping(@PathParam("macID") String macID) {
+
+        ObjectNode root = mapper().createObjectNode();
+
+        if (!service.removeStaticMapping(MacAddress.valueOf(macID))) {
+            throw new IllegalArgumentException("Static Mapping Removal Failed.");
+        }
+        final Map<HostId, IpAssignment> intents = service.listMapping();
+        ArrayNode arrayNode = root.putArray("mappings");
+        intents.entrySet().forEach(i -> arrayNode.add(mapper().createObjectNode()
+                .put("host", i.getKey().toString())
+                .put("ip", i.getValue().ipAddress().toString())));
+
+        return ok(root.toString()).build();
+    }
+}
diff --git a/framework/src/onos/apps/dhcp/app/src/main/java/org/onosproject/dhcp/rest/package-info.java b/framework/src/onos/apps/dhcp/app/src/main/java/org/onosproject/dhcp/rest/package-info.java
new file mode 100644
index 00000000..73173c55
--- /dev/null
+++ b/framework/src/onos/apps/dhcp/app/src/main/java/org/onosproject/dhcp/rest/package-info.java
@@ -0,0 +1,20 @@
+/*
+ * Copyright 2015 Open Networking Laboratory
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * REST APIs for sample application that assigns and manages DHCP leases.
+ */
+package org.onosproject.dhcp.rest;
\ No newline at end of file
diff --git a/framework/src/onos/apps/dhcp/app/src/main/resources/OSGI-INF/blueprint/shell-config.xml b/framework/src/onos/apps/dhcp/app/src/main/resources/OSGI-INF/blueprint/shell-config.xml
new file mode 100644
index 00000000..ce716315
--- /dev/null
+++ b/framework/src/onos/apps/dhcp/app/src/main/resources/OSGI-INF/blueprint/shell-config.xml
@@ -0,0 +1,43 @@
+<!--
+  ~ Copyright 2014 Open Networking Laboratory
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~     http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
+<blueprint xmlns="http://www.osgi.org/xmlns/blueprint/v1.0.0">
+
+    <command-bundle xmlns="http://karaf.apache.org/xmlns/shell/v1.1.0">
+        <command>
+            <action class="org.onosproject.dhcp.cli.DhcpListAllMappings"/>
+        </command>
+        <command>
+            <action class="org.onosproject.dhcp.cli.DhcpLeaseDetails"/>
+        </command>
+        <command>
+            <action class="org.onosproject.dhcp.cli.DhcpSetStaticMapping"/>
+            <completers>
+                <ref component-id="macIDCompleter"/>
+                <ref component-id="freeIPCompleter"/>
+            </completers>
+        </command>
+        <command>
+            <action class="org.onosproject.dhcp.cli.DhcpRemoveStaticMapping"/>
+            <completers>
+                <ref component-id="macIDCompleter"/>
+            </completers>
+        </command>
+    </command-bundle>
+
+    <bean id="macIDCompleter" class="org.onosproject.dhcp.cli.MacIdCompleter"/>
+    <bean id="freeIPCompleter" class="org.onosproject.dhcp.cli.FreeIpCompleter"/>
+
+</blueprint>
\ No newline at end of file
diff --git a/framework/src/onos/apps/dhcp/app/src/main/resources/app/view/dhcp/dhcp.css b/framework/src/onos/apps/dhcp/app/src/main/resources/app/view/dhcp/dhcp.css
new file mode 100644
index 00000000..e0a29314
--- /dev/null
+++ b/framework/src/onos/apps/dhcp/app/src/main/resources/app/view/dhcp/dhcp.css
@@ -0,0 +1,27 @@
+/*
+ * Copyright 2015 Open Networking Laboratory
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ ONOS GUI -- DHCP Server -- CSS file
+ */
+
+#ov-dhcp h2 {
+    display: inline-block;
+}
+
+#ov-dhcp div.ctrl-btns {
+    width: 45px;
+}
diff --git a/framework/src/onos/apps/dhcp/app/src/main/resources/app/view/dhcp/dhcp.html b/framework/src/onos/apps/dhcp/app/src/main/resources/app/view/dhcp/dhcp.html
new file mode 100644
index 00000000..5782badf
--- /dev/null
+++ b/framework/src/onos/apps/dhcp/app/src/main/resources/app/view/dhcp/dhcp.html
@@ -0,0 +1,47 @@
+<!-- DHCP Server partial HTML -->
+<div id="ov-dhcp">
+  <div class="tabular-header">
+    <h2>DHCP Mappings ({{tableData.length}} total)</h2>
+    <div class="ctrl-btns">
+      <div class="refresh" ng-class="{active: autoRefresh}"
+           icon icon-size="36" icon-id="refresh"
+           tooltip tt-msg="autoRefreshTip"
+           ng-click="toggleRefresh()"></div>
+    </div>
+  </div>
+
+  <div class="summary-list" onos-table-resize>
+    <div ng-show="loading" class="loading-wheel"
+         icon icon-id="loading" icon-size="75"></div>
+
+    <div class="table-header" onos-sortable-header>
+      <table>
+        <tr>
+          <td colId="host" sortable>Host ID</td>
+          <td colId="ip" sortable>IP Address</td>
+          <td colId="lease" sortable>Lease Expiry</td>
+        </tr>
+      </table>
+    </div>
+
+    <div class="table-body">
+      <table onos-flash-changes id-prop="host">
+        <tr ng-if="!tableData.length" class="no-data">
+          <td colspan="2">
+            No mappings found
+          </td>
+        </tr>
+
+        <tr ng-repeat="dhcp in tableData track by $index"
+            ng-click="selectCallback($event, dhcp)"
+            ng-repeat-complete row-id="{{dhcp.host}}">
+          <td>{{dhcp.host}}</td>
+          <td>{{dhcp.ip}}</td>
+          <td>{{dhcp.lease}}</td>
+        </tr>
+      </table>
+    </div>
+
+  </div>
+
+</div>
diff --git a/framework/src/onos/apps/dhcp/app/src/main/resources/app/view/dhcp/dhcp.js b/framework/src/onos/apps/dhcp/app/src/main/resources/app/view/dhcp/dhcp.js
new file mode 100644
index 00000000..061d0de6
--- /dev/null
+++ b/framework/src/onos/apps/dhcp/app/src/main/resources/app/view/dhcp/dhcp.js
@@ -0,0 +1,51 @@
+/*
+ * Copyright 2015 Open Networking Laboratory
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ ONOS GUI -- DHCP Server View Module
+ */
+
+(function () {
+    'use strict';
+
+    // injected refs
+    var $log, $scope;
+
+    angular.module('ovDhcp', [])
+        .controller('OvDhcpCtrl',
+        ['$log', '$scope', 'TableBuilderService',
+
+            function (_$log_, _$scope_, tbs) {
+                $log = _$log_;
+                $scope = _$scope_;
+
+                function selCb($event, row) {
+                    $log.debug('Got a click on:', row);
+                }
+
+                tbs.buildTable({
+                    scope: $scope,
+                    tag: 'dhcp',
+                    selCb: selCb
+                });
+
+                $scope.$on('$destroy', function () {
+                    $log.debug('OvDhcpCtrl has been destroyed');
+                });
+
+                $log.log('OvDhcpCtrl has been created');
+            }]);
+}());
\ No newline at end of file
diff --git a/framework/src/onos/apps/dhcp/app/src/main/resources/gui/css.html b/framework/src/onos/apps/dhcp/app/src/main/resources/gui/css.html
new file mode 100644
index 00000000..d02ad44a
--- /dev/null
+++ b/framework/src/onos/apps/dhcp/app/src/main/resources/gui/css.html
@@ -0,0 +1 @@
+<link rel="stylesheet" href="app/view/dhcp/dhcp.css">
\ No newline at end of file
diff --git a/framework/src/onos/apps/dhcp/app/src/main/resources/gui/js.html b/framework/src/onos/apps/dhcp/app/src/main/resources/gui/js.html
new file mode 100644
index 00000000..d37b5768
--- /dev/null
+++ b/framework/src/onos/apps/dhcp/app/src/main/resources/gui/js.html
@@ -0,0 +1 @@
+<script src="app/view/dhcp/dhcp.js"></script>
\ No newline at end of file
diff --git a/framework/src/onos/apps/dhcp/app/src/main/webapp/WEB-INF/web.xml b/framework/src/onos/apps/dhcp/app/src/main/webapp/WEB-INF/web.xml
new file mode 100644
index 00000000..27504548
--- /dev/null
+++ b/framework/src/onos/apps/dhcp/app/src/main/webapp/WEB-INF/web.xml
@@ -0,0 +1,43 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+  ~ Copyright 2015 Open Networking Laboratory
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~     http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
+<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee"
+         xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
+         xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
+         id="ONOS" version="2.5">
+    <display-name>DHCP Server REST API v1.0</display-name>
+
+    <servlet>
+        <servlet-name>JAX-RS Service</servlet-name>
+        <servlet-class>com.sun.jersey.spi.container.servlet.ServletContainer</servlet-class>
+        <init-param>
+            <param-name>com.sun.jersey.config.property.resourceConfigClass</param-name>
+            <param-value>com.sun.jersey.api.core.ClassNamesResourceConfig</param-value>
+        </init-param>
+        <init-param>
+            <param-name>com.sun.jersey.config.property.classnames</param-name>
+            <param-value>
+                org.onosproject.dhcp.rest.DHCPWebResource
+            </param-value>
+        </init-param>
+        <load-on-startup>1</load-on-startup>
+    </servlet>
+
+    <servlet-mapping>
+        <servlet-name>JAX-RS Service</servlet-name>
+        <url-pattern>/*</url-pattern>
+    </servlet-mapping>
+</web-app>
diff --git a/framework/src/onos/apps/dhcp/app/src/test/java/org/onosproject/dhcp/impl/DhcpManagerTest.java b/framework/src/onos/apps/dhcp/app/src/test/java/org/onosproject/dhcp/impl/DhcpManagerTest.java
new file mode 100644
index 00000000..fd4701c6
--- /dev/null
+++ b/framework/src/onos/apps/dhcp/app/src/test/java/org/onosproject/dhcp/impl/DhcpManagerTest.java
@@ -0,0 +1,392 @@
+/*
+ * Copyright 2015 Open Networking Laboratory
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.onosproject.dhcp.impl;
+
+import com.google.common.collect.ImmutableSet;
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+import org.onlab.packet.DHCP;
+import org.onlab.packet.DHCPOption;
+import org.onlab.packet.DHCPPacketType;
+import org.onlab.packet.Ethernet;
+import org.onlab.packet.IPv4;
+import org.onlab.packet.Ip4Address;
+import org.onlab.packet.IpAddress;
+import org.onlab.packet.MacAddress;
+import org.onlab.packet.UDP;
+import org.onosproject.core.CoreServiceAdapter;
+import org.onosproject.dhcp.DhcpStore;
+import org.onosproject.dhcp.IpAssignment;
+import org.onosproject.net.Host;
+import org.onosproject.net.HostId;
+import org.onosproject.net.config.NetworkConfigRegistryAdapter;
+import org.onosproject.net.host.HostDescription;
+import org.onosproject.net.host.HostProvider;
+import org.onosproject.net.host.HostProviderRegistry;
+import org.onosproject.net.host.HostProviderService;
+import org.onosproject.net.packet.DefaultInboundPacket;
+import org.onosproject.net.packet.DefaultPacketContext;
+import org.onosproject.net.packet.InboundPacket;
+import org.onosproject.net.packet.OutboundPacket;
+import org.onosproject.net.packet.PacketContext;
+import org.onosproject.net.packet.PacketProcessor;
+import org.onosproject.net.packet.PacketServiceAdapter;
+import org.onosproject.net.provider.AbstractProvider;
+import org.onosproject.net.provider.AbstractProviderService;
+import org.onosproject.net.provider.ProviderId;
+
+import java.nio.ByteBuffer;
+import java.util.ArrayList;
+import java.util.Date;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.fail;
+import static org.onosproject.net.NetTestTools.connectPoint;
+
+/**
+ * Set of tests of the ONOS application component.
+ */
+
+public class DhcpManagerTest {
+
+    private DhcpManager dhcpXManager;
+
+    protected PacketProcessor packetProcessor;
+
+    protected HostProviderService hostProviderService;
+
+    private static final HostId CLIENT1_HOST = HostId.hostId(MacAddress.valueOf("1a:1a:1a:1a:1a:1a"));
+
+    private static final String EXPECTED_IP = "10.2.0.2";
+
+    private static final Ip4Address BROADCAST = Ip4Address.valueOf("255.255.255.255");
+
+    private static final int TRANSACTION_ID = 1000;
+
+    private static final ProviderId PID = new ProviderId("of", "foo");
+
+    @Before
+    public void setUp() {
+        dhcpXManager = new DhcpManager();
+        dhcpXManager.cfgService = new TestNetworkConfigRegistry();
+        dhcpXManager.packetService = new TestPacketService();
+        dhcpXManager.coreService = new TestCoreService();
+        dhcpXManager.dhcpStore = new TestDhcpStore();
+        hostProviderService = new TestHostProviderService(new TestHostProvider());
+        dhcpXManager.hostProviderService = hostProviderService;
+        dhcpXManager.hostProviderRegistry = new TestHostRegistry();
+        dhcpXManager.activate();
+    }
+
+    @After
+    public void tearDown() {
+        dhcpXManager.deactivate();
+    }
+
+    /**
+     * Tests the response to a DHCP Discover Packet.
+     */
+    @Test
+    public void testDiscover() {
+        Ethernet reply = constructDHCPPacket(DHCPPacketType.DHCPDISCOVER);
+        sendPacket(reply);
+    }
+
+    /**
+     * Tests the response to a DHCP Request Packet.
+     */
+    @Test
+    public void testRequest() {
+        Ethernet reply = constructDHCPPacket(DHCPPacketType.DHCPREQUEST);
+        sendPacket(reply);
+    }
+
+    /**
+     * Sends an Ethernet packet to the process method of the Packet Processor.
+     * @param reply Ethernet packet
+     */
+    private void sendPacket(Ethernet reply) {
+        final ByteBuffer byteBuffer = ByteBuffer.wrap(reply.serialize());
+        InboundPacket inPacket = new DefaultInboundPacket(connectPoint("1", 1),
+                reply,
+                byteBuffer);
+
+        PacketContext context = new TestPacketContext(127L, inPacket, null, false);
+        packetProcessor.process(context);
+    }
+
+    /**
+     * Constructs an Ethernet packet containing a DHCP Payload.
+     * @param packetType DHCP Message Type
+     * @return Ethernet packet
+     */
+    private Ethernet constructDHCPPacket(DHCPPacketType packetType) {
+
+        // Ethernet Frame.
+        Ethernet ethReply = new Ethernet();
+        ethReply.setSourceMACAddress(CLIENT1_HOST.mac());
+        ethReply.setDestinationMACAddress(MacAddress.BROADCAST);
+        ethReply.setEtherType(Ethernet.TYPE_IPV4);
+        ethReply.setVlanID((short) 2);
+
+        // IP Packet
+        IPv4 ipv4Reply = new IPv4();
+        ipv4Reply.setSourceAddress(0);
+        ipv4Reply.setDestinationAddress(BROADCAST.toInt());
+        ipv4Reply.setTtl((byte) 127);
+
+        // UDP Datagram.
+        UDP udpReply = new UDP();
+        udpReply.setSourcePort((byte) UDP.DHCP_CLIENT_PORT);
+        udpReply.setDestinationPort((byte) UDP.DHCP_SERVER_PORT);
+
+        // DHCP Payload.
+        DHCP dhcpReply = new DHCP();
+        dhcpReply.setOpCode(DHCP.OPCODE_REQUEST);
+
+        dhcpReply.setYourIPAddress(0);
+        dhcpReply.setServerIPAddress(0);
+
+        dhcpReply.setTransactionId(TRANSACTION_ID);
+        dhcpReply.setClientHardwareAddress(CLIENT1_HOST.mac().toBytes());
+        dhcpReply.setHardwareType(DHCP.HWTYPE_ETHERNET);
+        dhcpReply.setHardwareAddressLength((byte) 6);
+
+        // DHCP Options.
+        DHCPOption option = new DHCPOption();
+        List<DHCPOption> optionList = new ArrayList<>();
+
+        // DHCP Message Type.
+        option.setCode(DHCP.DHCPOptionCode.OptionCode_MessageType.getValue());
+        option.setLength((byte) 1);
+        byte[] optionData = {(byte) packetType.getValue()};
+        option.setData(optionData);
+        optionList.add(option);
+
+        // DHCP Requested IP.
+        option = new DHCPOption();
+        option.setCode(DHCP.DHCPOptionCode.OptionCode_RequestedIP.getValue());
+        option.setLength((byte) 4);
+        optionData = Ip4Address.valueOf(EXPECTED_IP).toOctets();
+        option.setData(optionData);
+        optionList.add(option);
+
+        // End Option.
+        option = new DHCPOption();
+        option.setCode(DHCP.DHCPOptionCode.OptionCode_END.getValue());
+        option.setLength((byte) 1);
+        optionList.add(option);
+
+        dhcpReply.setOptions(optionList);
+
+        udpReply.setPayload(dhcpReply);
+        ipv4Reply.setPayload(udpReply);
+        ethReply.setPayload(ipv4Reply);
+
+        return ethReply;
+    }
+
+    /**
+     * Validates the contents of the packet sent by the DHCP Manager.
+     * @param packet Ethernet packet received
+     */
+    private void validatePacket(Ethernet packet) {
+        DHCP dhcpPacket = (DHCP) packet.getPayload().getPayload().getPayload();
+        assertEquals(MacAddress.valueOf(dhcpPacket.getClientHardwareAddress()), CLIENT1_HOST.mac());
+        assertEquals(Ip4Address.valueOf(dhcpPacket.getYourIPAddress()), Ip4Address.valueOf(EXPECTED_IP));
+        assertEquals(dhcpPacket.getTransactionId(), TRANSACTION_ID);
+    }
+
+    /**
+     * Mocks the DHCPStore.
+     */
+    private final class TestDhcpStore implements DhcpStore {
+
+
+        public void populateIPPoolfromRange(Ip4Address startIP, Ip4Address endIP) {
+        }
+
+        public Ip4Address suggestIP(HostId hostId, Ip4Address requestedIP) {
+            return Ip4Address.valueOf(EXPECTED_IP);
+        }
+
+        public boolean assignIP(HostId hostId, Ip4Address ipAddr, int leaseTime) {
+            return true;
+        }
+
+        public void setDefaultTimeoutForPurge(int timeInSeconds) {
+        }
+
+        public Ip4Address releaseIP(HostId hostId) {
+            return null;
+        }
+
+        public Map<HostId, IpAssignment> listAssignedMapping() {
+            return listAllMapping();
+        }
+
+        public Map<HostId, IpAssignment> listAllMapping() {
+            Map<HostId, IpAssignment> map = new HashMap<>();
+            IpAssignment assignment = IpAssignment.builder()
+                                        .ipAddress(Ip4Address.valueOf(EXPECTED_IP))
+                                        .assignmentStatus(IpAssignment.AssignmentStatus.Option_Assigned)
+                                        .leasePeriod(300)
+                                        .timestamp(new Date())
+                                        .build();
+            map.put(CLIENT1_HOST, assignment);
+            return map;
+        }
+
+        public boolean assignStaticIP(MacAddress macID, Ip4Address ipAddr) {
+            return true;
+        }
+
+        public boolean removeStaticIP(MacAddress macID) {
+            return true;
+        }
+
+        public Iterable<Ip4Address> getAvailableIPs() {
+            List<Ip4Address> ipList = new ArrayList<>();
+            ipList.add(Ip4Address.valueOf(EXPECTED_IP));
+            return ImmutableSet.copyOf(ipList);
+        }
+    }
+
+    /**
+     * Mocks the DefaultPacket context.
+     */
+    private final class TestPacketContext extends DefaultPacketContext {
+        private TestPacketContext(long time, InboundPacket inPkt,
+                                    OutboundPacket outPkt, boolean block) {
+            super(time, inPkt, outPkt, block);
+        }
+
+        @Override
+        public void send() {
+            // We don't send anything out.
+        }
+    }
+
+    /**
+     * Keeps a reference to the PacketProcessor and verifies the OutboundPackets.
+     */
+    private class TestPacketService extends PacketServiceAdapter {
+
+        @Override
+        public void addProcessor(PacketProcessor processor, int priority) {
+            packetProcessor = processor;
+        }
+
+        @Override
+        public void emit(OutboundPacket packet) {
+            try {
+                Ethernet eth = Ethernet.deserializer().deserialize(packet.data().array(),
+                        0, packet.data().array().length);
+                validatePacket(eth);
+            } catch (Exception e) {
+                fail(e.getMessage());
+            }
+        }
+    }
+
+    /**
+     * Mocks the CoreService.
+     */
+    private class TestCoreService extends CoreServiceAdapter {
+
+    }
+
+    /**
+     * Mocks the NetworkConfigRegistry.
+     */
+    private class TestNetworkConfigRegistry extends NetworkConfigRegistryAdapter {
+
+    }
+
+    /**
+     * Mocks the HostProviderService.
+     */
+    private class TestHostProviderService extends AbstractProviderService<HostProvider>
+            implements HostProviderService {
+
+        protected TestHostProviderService(HostProvider provider) {
+            super(provider);
+        }
+
+        @Override
+        public void hostDetected(HostId hostId, HostDescription hostDescription, boolean replaceIps) {
+
+        }
+
+        @Override
+        public void hostVanished(HostId hostId) {
+        }
+
+        @Override
+        public void removeIpFromHost(HostId hostId, IpAddress ipAddress) {
+
+        }
+
+    }
+
+    /**
+     * Mocks the HostProvider.
+     */
+    private static class TestHostProvider extends AbstractProvider
+            implements HostProvider {
+
+        protected TestHostProvider() {
+            super(PID);
+        }
+
+        @Override
+        public ProviderId id() {
+            return PID;
+        }
+
+        @Override
+        public void triggerProbe(Host host) {
+        }
+
+    }
+
+    /**
+     * Mocks the HostProviderRegistry.
+     */
+    private class TestHostRegistry implements HostProviderRegistry {
+
+        @Override
+        public HostProviderService register(HostProvider provider) {
+            return hostProviderService;
+        }
+
+        @Override
+        public void unregister(HostProvider provider) {
+        }
+
+        @Override
+        public Set<ProviderId> getProviders() {
+            return null;
+        }
+
+    }
+
+}
diff --git a/framework/src/onos/apps/dhcp/app/src/test/resources/dhcp-cfg.json b/framework/src/onos/apps/dhcp/app/src/test/resources/dhcp-cfg.json
new file mode 100644
index 00000000..abc48a83
--- /dev/null
+++ b/framework/src/onos/apps/dhcp/app/src/test/resources/dhcp-cfg.json
@@ -0,0 +1,22 @@
+{
+  "apps": {
+    "org.onosproject.dhcp" : {
+      "dhcp" : {
+        "ip": "10.0.0.1",
+        "mac": "1a:2b:3c:4e:5e:6f",
+        "subnet": "255.0.0.0",
+        "broadcast": "10.255.255.255",
+        "router": "10.0.0.1",
+        "domain": "10.0.0.1",
+        "ttl": "63",
+        "lease": "300",
+        "renew": "150",
+        "rebind": "200",
+        "delay": "3",
+        "timeout": "150",
+        "startip": "10.0.0.110",
+        "endip": "10.0.0.130"
+      }
+    }
+  }
+}
\ No newline at end of file