On Tue, 16 Nov 2004 09:38:17 -0500, James W. McKeand <james at mckeand dot biz> wrote:
> I just tried to test what would happen if I created a Inbound NAT and
> firewall rules for SMTP (I do not host any  of my mail or web on my
> LAN, but I do have servers...)  I created an Inbound NAT on my WAN
> interface IP with external port and internal port 25 and my SBS as the
> NAT IP. Allowed creation of the Firewall Rule (Pass -> Interface: WAN
> -> Source IP: any -> Source Port: any -> Destination IP: SBS ->
> Destination Port: 25). I tested this by using remote desktop
> connection to connect to a server at one of my client's site, then
> used telnet from there to connect back to my WAN IP on port 25. I
> connected to my SBS's Exchange as expected...

The bit that throws me is why the firewall rule needs to be there,
as my understanding of nat suggests that it's client<->firewall and
firewall<->server, but the rule's opening client<->server...

Anyone point out what I'm missing?

/Gwyn