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+================================================
+Set up a Service VM Running as a vRouter (SLAAC)
+================================================
+
+| # Current network setup for IPv6 router VM on local virtualbox setup
+| # /etc/sysconfig/network-scripts/ifcfg-enp0s3
+| # Network interface enp0s3 is IPv4 for public internet access
+| TYPE="Ethernet"
+| BOOTPROTO="dhcp"
+| DEFROUTE="yes"
+| PEERDNS="yes"
+| PEERROUTES="yes"
+| IPV4_FAILURE_FATAL="no"
+| IPV6INIT="yes"
+| IPV6_AUTOCONF="yes"
+| IPV6_DEFROUTE="yes"
+| IPV6_PEERDNS="yes"
+| IPV6_PEERROUTES="yes"
+| IPV6_FAILURE_FATAL="no"
+| NAME="enp0s3"
+| UUID="32bad876-680a-4f78-a364-726eae21bfcf"
+| DEVICE="enp0s3"
+| ONBOOT="yes"
+
+| # /etc/sysconfig/network-scripts/ifcfg-enp0s8
+| # Network interface enp0s8 is IPv6 internal interface to provide IPv6 to internal hosts
+| BOOTPROTO=static
+| IPV6INIT=yes
+| IPV6ADDR="2001:db8:0:2::1/64"
+| NAME=enp0s8
+| UUID=e931a806-2f76-425d-b035-d37813b81df5
+| DEVICE=enp0s8
+| ONBOOT=yes
+| NM_CONTROLLED=no
+
+| # Disable NetworkManager
+| systemctl disable NetworkManager
+
+| # Install dhcp.x86_64, dhcp-common.x86_64, radvd.x86_64 if not already installed
+| yum install dhcp-common
+| yum install dhcp
+| yum install radvd
+
+| # /etc/sysctl.conf Set sysctl to enable IPv6 forwarding
+| net.ipv6.conf.all.forwarding=1
+| net.ipv6.conf.enp0s3.accept_ra=2
+| net.ipv6.conf.enp0s3.accept_ra_defrtr=1
+| net.ipv6.conf.enp0s3.router_solicitations=1
+
+| # /etc/radvd.conf
+| interface enp0s8
+| {
+| # This is the primary "on switch" for RADVD
+|     AdvSendAdvert on;     
+| #
+| # These settings determine how often advertisements will be sent every X-Y.
+| # X and Y are in seconds.
+| # With these settings you will be sending a advert every 60 seconds
+| #
+|     MinRtrAdvInterval 60;
+|     MaxRtrAdvInterval 180;
+| #
+| # Disable Mobile IPv6 support
+| #
+|     AdvHomeAgentFlag off;
+| #
+| # Here we set our managed flags
+| #
+|     AdvManagedFlag on;
+|     AdvOtherConfigFlag on;
+| #
+| # Enter our IPv6 prefix and CIDR
+| #
+|     prefix 2001:db8:0:2::/64
+|     {
+|         AdvOnLink on;
+| # On link tells the host that the default router is on the same "link" as it is
+|         AdvAutonomous on;
+|         AdvRouterAddr off;
+|     };
+| };
+
+# Enable radvd service
+systemctl enable radvd
+
+# In /etc/sysconfig/network add
+IPV6FORWARDING=yes
+
+=================================================================
+Set up a Service VM Running as a vRouter (DHCPv6 Stateful Server)
+=================================================================
+
+| # Current network setup for IPv6 router VM on local virtualbox setup
+| # /etc/sysconfig/network-scripts/ifcfg-enp0s3
+| # Network interface enp0s3 is IPv4 for public internet access
+| TYPE="Ethernet"
+| BOOTPROTO="dhcp"
+| DEFROUTE="yes"
+| PEERDNS="yes"
+| PEERROUTES="yes"
+| IPV4_FAILURE_FATAL="no"
+| IPV6INIT="yes"
+| IPV6_AUTOCONF="yes"
+| IPV6_DEFROUTE="yes"
+| IPV6_PEERDNS="yes"
+| IPV6_PEERROUTES="yes"
+| IPV6_FAILURE_FATAL="no"
+| NAME="enp0s3"
+| UUID="32bad876-680a-4f78-a364-726eae21bfcf"
+| DEVICE="enp0s3"
+| ONBOOT="yes"
+
+| # /etc/sysconfig/network-scripts/ifcfg-enp0s8
+| # Network interface enp0s8 is IPv6 internal interface to provide IPv6 to internal hosts
+| BOOTPROTO=static
+| IPV6INIT=yes
+| IPV6ADDR="2001:db8:0:2::1/64"
+| NAME=enp0s8
+| UUID=e931a806-2f76-425d-b035-d37813b81df5
+| DEVICE=enp0s8
+| ONBOOT=yes
+| NM_CONTROLLED=no
+
+| # Disable NetworkManager
+| systemctl disable NetworkManager
+
+| # Install dhcp.x86_64, dhcp-common.x86_64, radvd.x86_64 if not already installed
+| yum install dhcp-common
+| yum install dhcp
+| yum install radvd
+
+| # /etc/sysctl.conf Set sysctl to enable IPv6 forwarding
+| net.ipv6.conf.all.forwarding=1
+| net.ipv6.conf.enp0s3.accept_ra=2
+| net.ipv6.conf.enp0s3.accept_ra_defrtr=1
+| net.ipv6.conf.enp0s3.router_solicitations=1
+
+| # /etc/dhcp/dhcpd6.conf
+| # DHCP for IPv6 Server Configuration file.
+
+| # Enable RFC 5007 support (same than for DHCPv4)
+    allow leasequery;
+
+| # IPv6 address valid lifetime
+| #  (at the end the address is no longer usable by the client)
+| #  (set to 30 days, the usual IPv6 default)
+|     default-lease-time 2592000;
+
+| # IPv6 address preferred lifetime
+| #  (at the end the address is deprecated, i.e., the client should use
+| #   other addresses for new connections)
+| #  (set to 7 days, the  usual IPv6 default)
+|     preferred-lifetime 604800;
+
+| # T1, the delay before Renew
+| #  (default is 1/2 preferred lifetime)
+| #  (set to 1 hour)
+|     option dhcp-renewal-time 3600;
+
+| # T2, the delay before Rebind (if Renews failed)
+| #  (default is 3/4 preferred lifetime)
+| #  (set to 2 hours)
+|     option dhcp-rebinding-time 7200;
+
+| # The path of the lease file
+|     dhcpv6-lease-file-name "/var/lib/dhcpd/dhcpd6.leases";
+
+| # Set preference to 255 (maximum) in order to avoid waiting for
+| # additional servers when there is only one
+|     option dhcp6.preference 255;
+
+| # Server side command to enable rapid-commit (2 packet exchange)
+|     option dhcp6.rapid-commit;
+
+| # The delay before information-request refresh
+| #  (minimum is 10 minutes, maximum one day, default is to not refresh)
+| #  (set to 6 hours)
+    option dhcp6.info-refresh-time 21600;
+
+| # Set this to `interim` when doing ddns updates
+|     ddns-update-style interim;
+| 
+|     subnet6 2001:db8:0:2::/64 {
+|         option dhcp6.name-servers 2001:db8:0:2::1;
+|         option dhcp6.domain-search "opnfv.local";
+|         ddns-hostname = concat(binary-to-ascii(10, 8, "-", leased-address), ".wired");
+|         ddns-domainname = "opnfv.local";
+| # Our address range 1000 through 1fff
+|         range6 2001:db8:0:2::1000 2001:db8:0:2::1fff;
+|     }
+| 
+| # In /etc/sysconfig/network add
+| IPV6FORWARDING=yes
+
+For reference, refer to `How to set up RADVd DHCPv6 and DNS on CentOS 6`_.
+
+.. _`How to set up RADVd DHCPv6 and DNS on CentOS 6`: http://www.percula.info/archives/196
+