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Date:      Wed, 17 Jan 2001 21:27:38 +0100
From:      Cliff Sarginson <cliff@raggedclown.net>
To:        questions@freebsd.org
Subject:   ppp, natd, ipfw. Can an expert clarify something ?
Message-ID:  <20010117212738.D898@raggedclown.net>

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Hello
In the documentation for natd it states early on that
if you want nat with ppp you should use the -nat option
for that with ppp.
In the BSD document called something like "Dial Up Firewall" or
similar, the example given does not use -nat, but uses natd
directly. Apart from the fact the example in the document don't
work.. well..back to the question.

I have an inner network of the 192.168 variety where I need no
firewall and no NAT.
My gateway connects to the Internet with a PPP connection as normal.
On the gateway I want to allow ALL services out from the inner
network and HTTP,ssh,ftp in. Somehow I want these services not
to be serviced by the gateway but to be re-directed to another
server.

Now my question is this:

- DO I use PPP -nat with ppp filter rules
- Do I use PPP -nat with ipfw rules
- Do I use PPP with seperate NAT and ipfw rules
- Do I use PPP with seperate NAT and PPP filter rules

:)
I don't have an opinion. But the documentation I have read
does not really give enough guidelines. 
I know what I want to firewall, I think I understand what
it is all about. But I insufficient data to make an informed
decision..

Sorry for such a ramble. I am sure others may appreciate an
answer as well though.

Thanks
Cliff

p.s. Anyone know whether xinted would be good for redirecting
http/ftp in this scenario ?




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