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Date:      Wed, 9 Feb 2011 02:47:18 +0800
From:      rozhuk.im@gmail.com
To:        <freebsd-net@freebsd.org>
Subject:   RE: divert rewrite
Message-ID:  <4d518fba.26ead80a.02ff.1058@mx.google.com>
In-Reply-To: <4D51750A.3070303@FreeBSD.org>
References:  <4D4DCD1E.1050906@freebsd.org>	<AANLkTimtDegcGjzXatEOHjQR9GM_hD29ZiKnkT-zG1_S@mail.gmail.com>	<4D4DFC95.9010804@freebsd.org>	<4D501198.6090901@FreeBSD.org> <4d516a6a.8937e30a.0996.2f26@mx.google.com> <4D51750A.3070303@FreeBSD.org>

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> -----Original Message-----
> From: Sergey Matveychuk [mailto:sem@FreeBSD.org]
> Sent: Wednesday, February 09, 2011 12:53 AM
> To: Rozhuk.IM@gmail.com
> Cc: freebsd-net@freebsd.org
> Subject: Re: divert rewrite
>=20
> 08.02.2011 19:08, rozhuk.im@gmail.com wrote:
> > Did you try ng_ether + ng_ksocket?
> > It can translate Ethernet frames incapsulated to udp to user space
> receiver.
>=20
> The idea is catch packets from firewall (ng_ipfw, ng_nat was mentioned
> by mistake) and pass them to user space module that do some processing
> and puts back the packets into firewall (for rules with `diverted'
> keyword).
>=20
> It works now for IPv4 with `divert' and doesn't with IPv6.

I know how divert works, google: uTPControl ;)
Its simple for developmet, stable, but uses many CPU.

With ng_ether + ng_ksocket you can send custom Ethernet frames.
There is some node that can filter traffic, for IPv6 you need allow 1 or =
2 ethernet types to pass.







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