Great Circle Associates Firewalls
(April 1996)
 

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Subject: FireWall-1 and NAT
From: Andy Condliffe <andy @ accomp . demon . co . uk>
Date: Fri, 19 Apr 1996 20:14:01 +0100
To: firewalls @ greatcircle . com

Hi,

I am currently having a problem with FireWall-1 (Version 1.21) and NAT.
We have another site with a leased line connecting into a Wellfleet
router, this router is connected directly into the back of SPARC 20
running FireWall-1 with address translation enabled, which acts as a
gateway to the internet.  The problem is that packets coming from or
through the Wellfleet do NOT translate!  If I put a PC/SUN/CISCO router
in place of the Wellfleet it all works.  To add further confusion
telneting from/through the Wellfleet works okay, but not ping, ftp,
http, etc.

Sun say they haven't heard of this, as do Checkpoint.

Help.....

Andy 
=========================================================
= Andy Condliffe        andy @
 accomp .
 demon .
 co .
 uk         =
= Fax: 01252 510546     Tel: 0385 364 243               =
=========================================================

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