I've searched around for the answer to this question, I may have found it but not have understood the answer. I've primarily worked with Linux based firewalls, with some PIX experience.
One Function that I was always able to easily do is what I refer to as a SNAT.
Example Source IP (192.168.1.5) Destination IP(any) Service (RDP:3389) > Change Source to:(18.104.22.168)
This would force 192.168.1.5 to use 22.214.171.124 as it's external IP address only while using RDP:3389, all other traffic would use the default MASQ.
I dont want to port forward 3389 to 192.168.1.5, I want it to use 126.96.36.199 as it's public IP when using the port 3389
Where all other traffic defaults outbound to 188.8.131.52
Is this even possible with a PIX / ASA ?
If so how?