I have two sites, point A and point B, that i want to set up a vpn.
There exists a vpn from point A to another point C. The problem is
that Point B and C has the same private network -
Point A has a network

Point A and C have Cisco PIX boxes and C has a LinkSys VPN device. The
LinkSys doesn't seem to be able to do manual NAT.

So my problem is, how do i do VPN to Point B, keeping the existing VPN
to Point C, if point B and C has the same network defined?