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Date:      Tue, 2 Jan 2001 17:41:37 -0500
From:      "Matthew Emmerton" <matt@gsicomp.on.ca>
To:        <freebsd-questions@FreeBSD.ORG>
Subject:   Re: Networking and forwarding woes
Message-ID:  <003801c0750d$2b0b7650$1200a8c0@gsicomp.on.ca>
References:  <14927.2712.916173.916547@Max.B2Pi.com> <20010103081434.B62613@itouchnz.itouch> <14930.11427.396120.786032@Max.B2Pi.com> <20010103084859.D62613@itouchnz.itouch>

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> > I'm absolutely certain that my shoes are down! I'm not real sure about
> > anything else, other than the situation that I want is to use
> > eventually is along the lines of
> >
> >               +---------+
> >               |         |         +---- 185
> >               |         |         |
> > 1         192 |         |         +---- 186
> > internet -----| de0     |         |
> >               |         | 188     +---- 187
> >               |     rl0 |---------+
> >               |         |         +---- 189
> >               |         |         |
> >               |         |         +---- 190
> >               |         |         |
> >               +---------+         +---- 191
> >                  FreeBSD
>
> Hmm, could you please explain what sort of network solution you're
> trying to achieve here? Maybe we (the list) could come up with an
> alternative that would work.

It looks like he's trying to make his FreeBSD machine be a firewall of some
sort.  The setup is similar to what most people with a single public IP do,
except that he's using real IPs on the inside instead of using NAT + private
IPs.

Since he doesn't have a proper subnet (he's got a /29 subnet shifted by
one), doing anything using routed is out of the question.  I imagine
something could be concocted using natd/ipfw, but it would be very
complicated, to say the least.

--
Matt Emmerton



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