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PIX behind another NAT Router

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Griffyn

Programmer
Jul 11, 2002
1,077
AU
Hi all,

Newbie here - got myself a 501 and I imagine it's right to go in it's factory settings, except I need my Exchange server visible. Can anyone help?

Setup is: Got an ADSL modem/router with NAT, and Port Forwarding turned on for port 25 for my exchange server (192.168.15.3). The ADSL router's internal IP is 10.0.0.1

My PIX is connected to the ADSL router, and it's outside IP is 10.0.0.2 (internal is 192.168.15.251).

So when I've been reading the forum and people quote the

static (inside, outside) <exchange-public-ip> <exchange-private-ip> netmask 255.255.255.255

command, I'm confused. Obviously the <exchange-public-up> is not my ADSL public IP, coz as packets come in, they're being changed to have a destination of 192.168.15.3 aren't they? So what do I need to do to allow outside packets on port 25 to pass through?
 
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