#!/bin/bash

echo "1" > /proc/sys/net/ipv4/ip_forward
sudo iptables -t nat -A PREROUTING -d 10.121.38.34 -p udp --dport 515 -j DNAT --to-dest 192.168.0.100:514
sudo iptables -t nat -A POSTROUTING -d 192.168.0.100 -p udp --dport 515 -j SNAT --to 10.121.38.34