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Date:      Mon, 06 Jan 2003 17:23:42 +0000
From:      Jonathan Belson <jon@witchspace.com>
To:        Ceri Davies <setantae@submonkey.net>
Cc:        freebsd-questions@freebsd.org
Subject:   Re: [Q] ipfw and 'me'
Message-ID:  <3E19BB9E.6010207@witchspace.com>
References:  <3E19B689.2090207@witchspace.com> <20030106171001.GA13668@submonkey.net>

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Ceri Davies wrote:
> On Mon, Jan 06, 2003 at 05:02:01PM +0000, Jonathan Belson wrote:
> 
>>I've just been looking into the 'me' option for ipfw:
>>
>>me      matches any IP address configured on an interface in the
>>        system.  The address list is evaluated at the time the
>>        packet is analysed.
>>
>>Since the machine is a gateway, it has two network cards.  Will
>>'me' match *both* IP address or just the first one it comes
>>across?  I only really want it to match the IP address of the
>>external interface, not the internal one.
> 
> Both, I'm afraid.

Hmm, I suppose since tests for IP spoofing through the external
interface have already been carried out by that point, it isn't
that much of a problem.

Does the fancy-pants new IPFW2 allow more control for 'me'?


--Jon

http://www.witchspace.com


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