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List:       ipfilter
Subject:    IP Filter NAT problems
From:       Ryan van der Wielen <rvdwielen () agaltd ! co ! uk>
Date:       2000-02-29 16:49:57
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Hi Darren

After struggling along with IP Filter I was wondering if you could help me
solve the problems that I am experiencing.

I am running FreeBSD 3.4-RELEASE with ip_fil3.3.10 downloaded from the
coombs ftp site on a P3 with 2 3Com network cards, xl0 being external and
xl1 being internal. A cisco 1600 router links us to our ISP.

The filter is now accepting rules after I recompiled the kernel.

The internal network is specified as 10.0.0.0/24 which I want to NAT to
62.164.200.131, the external address of the firewall.

If I only load rules using ipnat in the rc.local file I can ping, etc. both
the internal and external ip addresses of the network cards of the firewall
but am unable to ping the router (from an internal workstation). however
from the firewall I can ping either the router or the internal pc.

No ipf rules have yet been specified.

Can you tell me what is going on!

Thanks


----------------------------------------------------------------------------
------------
Ryan van der Wielen
IT Consultant
The Ford College
17 St George Street
Hanover Square
London
W1R 9DE
Phone:	(020) 7529 7606
Fax:	(020) 7493 2494

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