Linux NATing on my own IP address

Question

I have a question regarding Linux NAT-ing on my own IP address.

Suppose I have an network interface, say eth0. It is given an IP address of 127.0.0.2. Now I apply a NAT rule in Linux saying that:

Any traffic with a source IP of 127.0.0.2 should be changed to a source IP of 192.168.0.2.

What source IP will I see in the packets sent out of eth0? In other words, will the NAT rule be applied to the packets originating from my own machine?

Thanks! Jin

Answer 1

you can use postrouting for the same

iptables -t nat -A POSTROUTING -s 127.0.0.2 -o eth0 -j SNAT --to 192.168.0.2