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-rwxr-xr-xtools/laas-fog/hostScripts/ipnat.sh34
1 files changed, 34 insertions, 0 deletions
diff --git a/tools/laas-fog/hostScripts/ipnat.sh b/tools/laas-fog/hostScripts/ipnat.sh
new file mode 100755
index 00000000..b8d97f0d
--- /dev/null
+++ b/tools/laas-fog/hostScripts/ipnat.sh
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+#!/bin/bash
+#############################################################################
+#Copyright 2017 Parker Berberian and others #
+# #
+#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. #
+#############################################################################
+
+MYIP=$1
+DESTINATION=10.20.0.2
+MYBRIDGE=10.20.0.1
+DESTNETWORK=10.20.0.0/24
+PORTS=(8000 8443)
+
+for PORT in "${PORTS[@]}"; do
+
+ iptables -I INPUT 2 -d "$MYIP" -p tcp --dport "$PORT" -j ACCEPT
+ iptables -t nat -I INPUT 1 -d "$MYIP" -p tcp --dport "$PORT" -j ACCEPT
+ iptables -I FORWARD -p tcp --dport "$PORT" -j ACCEPT
+
+ iptables -t nat -I PREROUTING -p tcp -d "$MYIP" --dport "$PORT" -j DNAT --to-destination "$DESTINATION:$PORT"
+ iptables -t nat -I POSTROUTING -p tcp -s "$DESTINATION" ! -d "$DESTNETWORK" -j SNAT --to-source "$MYIP"
+
+ iptables -t nat -I POSTROUTING 2 -d "$DESTINATION" -j SNAT --to-source "$MYBRIDGE"
+done