What does the static nat on the router look like? On a router without the
PIX being there it would be
ip nat inside source static tcp "ip of server on the inside" 25 "outside ip
address of the router" 25 extendable
----- Original Message -----
From: "Kevin McIntyre" 
To: 
Sent: Tuesday, August 07, 2001 6:12 PM
Subject: Pix static NAT error [7:15169]


> I have the following line in a PIX 506 for static natting to an inside
> server.
>
> static (inside,outside) tcp interface smtp 172.16.1.21 smtp netmask
> 255.255.255.255 0 0
>
> When the Pix is started this will work for a short period of time and
> then will stop answering to connections on port 25 at all.  The log on
> the server that it actually connects to says an unsuccessful attempt was
> made to connect but won't accept messages.
>
> When I try to send mail using the server from inside the PIX, directly
> to 172.16.1.21, the server itself is running fine.
>
> There is a 3640 router between the pix and the smtp server both with
> static routes.
>
> Any ideas?




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