cli tool to modify iptables rules with lxc

ipth.sh

@@ -0,0 +1,29 @@
+#!/bin/bash
+# Script to handle iptables rules when working with lxc
+
+show_usage() {
+	echo -e "usage: ./ipth.sh [4/6] [display]"
+	echo -e "usage: ./ipth.sh [4/6] [add/delete] [interface] [container IP] [port]"
+	echo -e "example: ./ipth.sh 4 add eth0 10.10.10.10 80"
+}
+
+if [ "$1" = "4" ]; then
+	program=iptables
+	ip=$4
+elif [ "$1" = "6" ]; then
+	program=ip6tables
+	ip='['"$4"']'
+else
+	show_usage
+	exit 1;
+fi
+
+if [ "$2" = "add" ]; then
+	$program -t nat -A PREROUTING -i $3 -p tcp --dport $5 -j DNAT --to $ip:$5
+elif [[ "$2" = "del" || "$2" = "delete" || "$2" = "remove" ]]; then
+	$program -t nat -D PREROUTING -i $3 -p tcp --dport $5 -j DNAT --to $ip:$5
+elif [[ "$2" = "show" || "$2" = "display" ]]; then
+	$program -t nat -L
+else
+	show_usage
+fi