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Date:      Sun, 23 Apr 2000 15:55:45 -0700 (PDT)
From:      Archie Cobbs <archie@whistle.com>
To:        rwatson@FreeBSD.ORG (Robert Watson)
Cc:        fenner@research.att.com (Bill Fenner), dmlb@ragnet.demon.co.uk, freebsd-hackers@FreeBSD.ORG
Subject:   Re: Help with SIOCADDMULTI, IFF_ALLMULTI and IFF_PROMISC
Message-ID:  <200004232255.PAA20746@bubba.whistle.com>
In-Reply-To: <Pine.NEB.3.96L.1000423132326.3461C-100000@fledge.watson.org> from Robert Watson at "Apr 23, 2000 01:24:51 pm"

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Robert Watson writes:
> > You should go promiscuous to multicast.  If the card doesn't support
> > that, you should go fully promiscuous and drop unicasts that aren't
> > to you.  (Make sure you don't block packets that bpf is going to
> > want to see).
> 
> Also, if you want bridging support, you have to bridge before doing the
> filtering.
> 
> Really, the filtering on ``appropriateness'' should only occur when the
> packet is about to enter ether_input().
> 
> Speaking of which, I'd really like to see bridge support getting added to
> all new NIC drivers from now on.  However, the current bridge interface
> leaves something to be desired...

I'm working on fixing this.. see discussion on freebsd-net.

-Archie

___________________________________________________________________________
Archie Cobbs   *   Whistle Communications, Inc.  *   http://www.whistle.com


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