as a firewalling solution I have a PIX 515E version 6.3(4) and in the near future I have to connect to a company partner, and I'd like to implement a VPN between two Cisco equipment, my PIX to my side and a new ASA 5510 by partner side. What I have to do is to share LANs like were a big one.
My question is, with my PIX and a new ASA could I implement that scenario ( I'm thinking to different equipments, different software and different commands) ?
The only difference between the 2 devices is th hardware. If you wanted to, you could upgrade your PIX to the same version of IOS as the ASA - but to be honest they are fully compatible as is.
As long as the PIX has 64mbs of memory, you will be able to run the same version of IOS that the ASA will be running.