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[FW1] Nat one public IP to two separate private IP's



I am at a roadblock on how to solve this issue:

On an NT network I want to host the website for domain "onlydomain.com" on a
web server (192.168.1.1),
and host email for the same "onlydomain.com" on a separate email server
(192.168.1.2).
Both servers reside the same one fw-1 server.
I only have one public IP (209.46.53.10)available to use for both NATs.
I have created net objects for both as such:
	webserver  valid=209.46.53.10, real=192.168.1.1
	mailserver valid=209.46.53.10, real=192.168.1.2

I have the proper .arp entry of "209.46.53.10    [mac address of fw-1 ext
nic]".

I have rules allowing for access (in and out) for both servers with the
proper protocols (HTTP, and SMTP, Pop3, respectively).

The problem is that only the mail requests are properly routed. The web
requests are routed to the mail server also, resulting in a page error for
the client browser.

Regardlesss of the rule-order of the two, the same result occurs.
However, if I delete the net object of the mailserver, the web requests are
fulfilled properly.

Is it not possible to use one public IP to address both email and web server
for the same domain, through NAT?



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