Pix 506E and SMTP through PAT

[mark.donnellan]

I have a pix 506e on the end of a DSL connection with a single public address, I am running PAT to a 192.168 network behind the firewall. The mail server is also behind the firewall and I do not have a spare public address to set up a static NAT for it. Is there any way I can get SMTP through to my mail server ?

[HEATH FREEL]

Yes, use a port based static with the interface command.

i.e.

static (inside,outside) tcp interface 25 192.168.1.1 25 netmask 255.255.255.255