I just installed a PIX515E and want to know if it's possible to use two external interfaces and two internal interfaces? I have two T-1 connections and would like to have all traffic with an ip address of 192.168.9.x to access the internet using one T-1 and all traffic with an ip address of 192.168.100.x to use the other.
I wouldn't try and do something like this on a PIX.
Use a router, and tell the PIX not to NAT any of the traffic. Then you can use policy routing.
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