PIX 501 Multiple Outside Ports to Single Inside Port.
I'm trying to fix our remote e-mail folks. I have no problem forwarding a single port from the outside to the inside. So say Outside port 25 is forwarded to our internal e-mail server on port 25.
What I'm trying to do is forward two outside port 25 and port 587 to our inside server listening on port 25. Is this possible with a PIX 501?
We are currently using:
static (inside,outside) tcp interface smtp 10.0.0.2 smtp netmask255.255.255.255 0 0
if I add another line in say:
static (inside,outside) tcp interface 587 10.0.0.2 smtp netmask255.255.255.255 0 0
I get an error about overlapping. This has to be possible, I'm just going about it wrong. I have scoured the web and I can see how it can be done in a Linux environment with IP Tables, but I have not found a reference to do this in a CISCO PIX.