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Date:      Tue, 27 Aug 2002 07:15:29 -0400
From:      Dylan Carlson <absinthe@pobox.com>
To:        freebsd-isp@FreeBSD.ORG
Subject:   Port forwarding recommendations?
Message-ID:  <200208270715.29162.absinthe@pobox.com>

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Hi,

There are volumes of mailing list messages out there on the subject of 
firewalls, but the solutions for different circumstances are not clear.  Your 
recommendations would be appreciated.

I have a simple low-end pentium box I want to do the following:

- Firewall  (ipfilter or ipfw, comfortable with either one)
- One external IP assigned via DHCP (from the ISP)
- One internal IP serving as a gateway address for a private class C
- NAT sharing to 4-5 hosts on the protected, internal subnet
- Inbound port forwarding 

...where "port forwarding" means listening on a port on the external interface 
of the firewall and forwarding to a specified internal host for the rule.  I 
have looked at [ /usr/ports/net/portfwd ] but I am not sure how well/if this 
works with any of the NAT and firewall implementations. 

Wondering which components you would use, why - and any caveats.  I would be 
thankful for any references as well.  

Provided I am successful with this I plan on writing up a procedure in DocBook 
and and kicking it over to the FreeBSD documentation project.

TIA,
-- 
Dylan Carlson [absinthe@pobox.com]

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