添加 port_forward/port_forward.sh

port_forward/port_forward.sh

@@ -0,0 +1,31 @@
+#!/bin/bash
+
+# Function to add port forwarding rule
+add_port_forwarding() {
+    local protocol=$1
+    local src_port=$2
+    local dest_ip=$3
+    local dest_port=$4
+
+    # Add the port forwarding rule
+    iptables -t nat -A PREROUTING -p tcp --dport $src_port -j DNAT --to-destination $dest_ip:$dest_port
+    iptables -t nat -A POSTROUTING -p tcp -d $dest_ip --dport $dest_port -j MASQUERADE
+
+    echo "Port forwarding added: $src_port -> $dest_ip:$dest_port"
+}
+
+# Function to list port forwarding rules
+list_port_forwarding() {
+    echo "Current port forwarding rules:"
+    iptables -t nat -L PREROUTING -n -v --line-numbers
+}
+
+# Main script logic
+if [ "$1" == "add" ] && [ "$2" == "ipv4" ]; then
+    add_port_forwarding "tcp" $3 $4 $5
+elif [ "$1" == "list" ]; then
+    list_port_forwarding
+else
+    echo "Usage: $0 add ipv4 <src_port> <dest_ip> <dest_port>"
+    echo "       $0 list"
+fi