I have two /28 subnets A & B.
My PIX and ASA's outside interface addresses are both in subnet A.
I am in the middle of a migration from the PIX to the ASA and need to use the PIX outside interface address on the ASA for the last two remaining lan to lan VPNs.
I am doing it like this because the vendors those VPNs connect to are huge IT Dinosaurs and will take them aaages to get their sh*t sorted... This means I need to move the IP address to my ASA so I can not bother having them change to a new Peer IP.
I've been trying to figure out how to set a specific IP address my VPN peer but I cannot figure out how..
I've even physically connected a second ethernet port and tried giving it a similar IP in the same range, to which it said its not possible to have two outside addresses with IP's in the same subnet.