NAT: 1-1 mapping from 192.168.x.x to 10.168.x.x ?

From: Stefano Masini (stefano_at_stefanomasini.com)
Date: 08/31/04 

Date: 31 Aug 2004 09:13:46 -0700

Hi,

I have a machine on a 192.168.x.x network that I would like to
configure in such a way that it believes to be in 10.168.x.x.

In other words, if a packet comes in from, say, 192.168.3.4, I would
like it to be mangled as it was coming from 10.168.3.4.

In the same way, I would like outgoing packets for 10.168.x.x to be
mapped to 192.168.x.x.

I read the iptables manual and found out abount DNAT and SNAT, but it
seems what they do at most is mangle addresses into a pool of
addresses, is a round robin fashion. I don't need round robin. I need
a 1-1 mapping.

Anybody knows if this is doable ?

Thanks!
stefano