Configure nat on a site 2 site ipsec vpn. We have several ipsec vpn's setup
on our bm38sp4_ir2a server and as yet (through sheer good luck) the subnets
of the VPN have not clashed with our own. It is only a matter of time
though. Is it possible to nat a single subnet without effecting all
traffic. This is important as different VPN's have access to different
hosts on our lan.