diff --git a/port_forward/port_forward.sh b/port_forward/port_forward.sh
index af766c6..bebe8b0 100644
--- a/port_forward/port_forward.sh
+++ b/port_forward/port_forward.sh
@@ -1,5 +1,27 @@
 #!/bin/bash
 
+# Function to check and enable IP forwarding
+check_and_enable_ip_forwarding() {
+    local protocol=$1
+    if [ "$protocol" == "ipv4" ]; then
+        local ip_forwarding=$(sysctl -n net.ipv4.ip_forward)
+        if [ "$ip_forwarding" -ne 1 ]; then
+            echo "Enabling IPv4 forwarding..."
+            sysctl -w net.ipv4.ip_forward=1
+        else
+            echo "IPv4 forwarding is already enabled."
+        fi
+    elif [ "$protocol" == "ipv6" ]; then
+        local ip_forwarding=$(sysctl -n net.ipv6.conf.all.forwarding)
+        if [ "$ip_forwarding" -ne 1 ]; then
+            echo "Enabling IPv6 forwarding..."
+            sysctl -w net.ipv6.conf.all.forwarding=1
+        else
+            echo "IPv6 forwarding is already enabled."
+        fi
+    fi
+}
+
 # Function to add port forwarding rule
 add_port_forwarding() {
     local protocol=$1
@@ -7,9 +29,17 @@ add_port_forwarding() {
     local dest_ip=$3
     local dest_port=$4
 
+    # Check and enable IP forwarding
+    check_and_enable_ip_forwarding $protocol
+
     # 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 $dest_port -j MASQUERADE
+    if [ "$protocol" == "ipv4" ]; then
+        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 $dest_port -j MASQUERADE
+    elif [ "$protocol" == "ipv6" ]; then
+        ip6tables -t nat -A PREROUTING -p tcp --dport $src_port -j DNAT --to-destination [$dest_ip]:$dest_port
+        ip6tables -t nat -A POSTROUTING -p tcp -d $dest_ip --dport $dest_port -j MASQUERADE
+    fi
 
     echo "Port forwarding added: $src_port -> $dest_ip:$dest_port"
 }
@@ -22,8 +52,13 @@ delete_port_forwarding() {
     local dest_port=$4
 
     # Delete the port forwarding rule
-    iptables -t nat -D PREROUTING -p tcp --dport $src_port -j DNAT --to-destination $dest_ip:$dest_port
-    iptables -t nat -D POSTROUTING -p tcp -d $dest_ip --dport $dest_port -j MASQUERADE
+    if [ "$protocol" == "ipv4" ]; then
+        iptables -t nat -D PREROUTING -p tcp --dport $src_port -j DNAT --to-destination $dest_ip:$dest_port
+        iptables -t nat -D POSTROUTING -p tcp -d $dest_ip --dport $dest_port -j MASQUERADE
+    elif [ "$protocol" == "ipv6" ]; then
+        ip6tables -t nat -D PREROUTING -p tcp --dport $src_port -j DNAT --to-destination [$dest_ip]:$dest_port
+        ip6tables -t nat -D POSTROUTING -p tcp -d $dest_ip --dport $dest_port -j MASQUERADE
+    fi
 
     echo "Port forwarding deleted: $src_port -> $dest_ip:$dest_port"
 }
@@ -32,17 +67,18 @@ delete_port_forwarding() {
 list_port_forwarding() {
     echo "Current port forwarding rules:"
     iptables -t nat -L PREROUTING -n -v --line-numbers
+    ip6tables -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" == "delete" ] && [ "$2" == "ipv4" ]; then
-    delete_port_forwarding "tcp" $3 $4 $5
+if [ "$1" == "add" ]; then
+    add_port_forwarding $2 $3 $4 $5
+elif [ "$1" == "delete" ]; then
+    delete_port_forwarding $2 $3 $4 $5
 elif [ "$1" == "list" ]; then
     list_port_forwarding
 else
-    echo "Usage: $0 add ipv4 <src_port> <dest_ip> <dest_port>"
-    echo "       $0 delete ipv4 <src_port> <dest_ip> <dest_port>"
+    echo "Usage: $0 add <ipv4|ipv6> <src_port> <dest_ip> <dest_port>"
+    echo "       $0 delete <ipv4|ipv6> <src_port> <dest_ip> <dest_port>"
     echo "       $0 list"
 fi
\ No newline at end of file