Date: Mon, 12 May 1997 17:11:23 -0400 From: Charles Henrich <henrich@crh.cl.msu.edu> To: Archie Cobbs <archie@whistle.com> Cc: freebsd-hackers@FreeBSD.ORG Subject: Re: divert and ethernet addresses? Message-ID: <19970512171123.41790@crh.cl.msu.edu> In-Reply-To: <199705121915.MAA28346@bubba.whistle.com>; from Archie Cobbs on Mon, May 12, 1997 at 12:15:58PM -0700 References: <19970511151454.39414@crh.cl.msu.edu> <199705121915.MAA28346@bubba.whistle.com>
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On the subject of Re: divert and ethernet addresses?, Archie Cobbs stated:
>
> > Is there anyway to get a divert that sees the full ethernet packet so work can
> > be done based on the source/destination ethernet addresses?
>
> No, unfortunately.. divert is an IP level mechanism (wheras BPF is
> an interface and hardware level mechanism).
>
> BPF does let you write, but you can't stop incoming packets from
> being received (ie., you just get a copy, there's no way to actually
> "divert" them..)
That should be good enough. Im attempting to make a very simple smart hub,
that lets me control what ethernet addresses pass between two networks. My
only concern is that it wont be able to handle the traffic quickly enough to
work :( We'll just have to see..
-Crh
Charles Henrich Michigan State University henrich@msu.edu
http://pilot.msu.edu/~henrich
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