We have 2 external interfaces and 1 internal interface performing NAT on our Pix-525. We would like to use our new internet connection along side our existing connection in such a way that outbound traffic (web, ftp, etc.) uses the new connection and all old static NAT's remain in place and accessible from the original public address space.
Our thought was to create the second extenal interface (global) and have it perform NAT for our internal network while preserving all of the connectivity to the old external address space from the outside.
We have many users that are relying on our current public address space for connectivity into our network via the pix. What would be the best way to go about accomplishing this? Any input would be appreciated.
Thanks in advance.