Date: Wed, 31 Oct 2007 09:53:56 -0700 From: Julian Elischer <julian@elischer.org> To: Matus Harvan <mharvan@inf.ethz.ch> Cc: freebsd-net@FreeBSD.org, Brooks Davis <brooks@FreeBSD.org>, "Bruce M. Simpson" <bms@FreeBSD.org>, Max Laier <max@love2party.net> Subject: Re: UDP catchall Message-ID: <4728B324.2000406@elischer.org> In-Reply-To: <20071031144915.GE1165@styx.ethz.ch> References: <20070909201837.GA18107@inf.ethz.ch> <20071026154057.GG1049@styx.ethz.ch> <4722AEB3.1010208@FreeBSD.org> <20071029150424.GA68594@lor.one-eyed-alien.net> <4726395B.8080905@FreeBSD.org> <20071031144915.GE1165@styx.ethz.ch>
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It's possible using ipfw to mostly implement this, and with an upcoming change, possible to completely implement this. the "uid" function of ipfw can act as a "does there exist a socket to which this packet would go?" test. and a variant of it called "for_me" that I am adding (we use it at work) does this even better. so, basically, yyy: skipto xxx ip from any to-me yyy+1: fwd 127.0.0.1,1234 xxx:
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