#! /bin/bash

iptables -t nat -$1 POSTROUTING -o eth0 -s 192.168.1.149 -j SNAT --to-source 83.17.108.24$2
iptables -t nat -$1 PREROUTING -i eth0 -d 83.17.108.24$2 -j DNAT --to-destination 192.168.1.149