I have 3 pix's let's say A, B and C. A's outside is connected to B's inside (internal serial connection) and B's outside is connected to C's outside (via internet). I already have a VPN built between B and C and want to build another between A and C. I can't build it directly as A's internal addressing is not visible from C (across internet). So I am going to build a VPN from A's outside to B's outside as the first hop and then use the existing VPN from B to C. I can't test this first but should it work ok? My concern is that the A-B vpn traverses B's inside to get to the outside (peer) on B but is that an issue. Once the data is on B it needs to "drop back into the pix" so that I can then send it on its way again out the other VPN.....
