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06.13.2007 at 10:40AM PDT, ID: 22631845
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7.6

Static port forwarding inbound and outbound on PIX

Asked by adamells in Networking Hardware Firewalls, Miscellaneous Networking

Tags: , , , ,

I tried to use lots of keywords in my title!

Basically, the outside world sees a single IP address for SMTP and POP3 mail, while NAT for the workstations uses a different IP. Inside, I want SMTP to go to a spam gateway server, and POP3 to go to an exchange server. And this is working! However, outbound SMTP from the spam server is using the global NAT address. For reverse DNS purposes, the inbound SMTP IP has to match the outbound SMTP IP. I'd basically like the port 25 SMTP map to be bidirectional... doesn't seem to work that way right now.

Here's what I have, and this works for inbound but outbound lands on the global NAT IP:

static (inside,outside) tcp 666.53.252.70 smtp 192.168.2.10 smtp netmask 255.255.255.255 0 0
static (inside,outside) tcp 666.53.252.70 pop3 192.168.2.9 pop3 netmask 255.255.255.255 0 0

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[+][-]06.13.2007 at 10:52AM PDT, ID: 19276549

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[+][-]06.13.2007 at 11:02AM PDT, ID: 19276607

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[+][-]06.13.2007 at 11:03AM PDT, ID: 19276612

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[+][-]06.13.2007 at 12:09PM PDT, ID: 19277154

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About this solution

Zones: Networking Hardware Firewalls, Miscellaneous Networking
Tags: nat, port, static, outbound, pix
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Solution Provided By: Cyclops3590
Participating Experts: 3
Solution Grade: A
 
 
[+][-]06.13.2007 at 12:11PM PDT, ID: 19277176

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[+][-]06.13.2007 at 01:03PM PDT, ID: 19277647

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[+][-]06.14.2007 at 07:32AM PDT, ID: 19283867

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[+][-]06.14.2007 at 08:05AM PDT, ID: 19284177

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[+][-]06.14.2007 at 09:29AM PDT, ID: 19284924

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[+][-]06.14.2007 at 09:51AM PDT, ID: 19285093

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