I have the following setup:
site a -> sessionWall--routera--vpn tunnel--routerb---PIX--->routerc--siteb
there is a VPN tunnel between the sessionWall firewall and the PIX firewall, traffic is encypted within the tunnel, after the firewalls, traffic is clear.
when i do a trace route from site A to site B, I cannot see any reply from the routers(e.g. routerc) after the 2 firewalls, which is in the clear, I can only see reply from the end node. why is it so?
Thanks much for the advise,