Additional subnet between PIX515e and 2621

Unanswered Question
May 29th, 2007
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Heres my situation. We currently have a public range of IP addresse x.x.x.0/24 and is associated with a T1. We have a PIX 515e that is terminating all of our VPN connections and a border router that passes the traffic. The outside of the PIX's address is x.x.x.253 and the f0/0 of the 2621 router is x.x.x.254. This of course creates a subnet between the PIX and the router. We were recently provided another range of public address y.y.y.0/27 that is another ISP and on a partial T3. We want to move our VPN connection to this new T3, one at a time for the improved bandwidth.

My problem is that I am not sure how to apply another address to the outside interface of the PIX to accomplish this. From what I understand, I can create sub interfaces on the PIX outside interface. Can some one provide some input on this situation.

Also, if I use subinterfaces, what would I need to do on the router besides route traffic destined for the above subnets to the f0/0 interface?

Thanks for any input!!

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