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From: "David S. Miller" <davem@redhat.com>
To: Daniel Gryniewicz <dang@fprintf.net>
Cc: ak@colin2.muc.de, ak@muc.de, lmb@suse.de, linux-kernel@vger.kernel.org
Subject: Re: [2.4 PATCH] bugfix: ARP respond on all devices
Date: Tue, 19 Aug 2003 12:24:51 -0700	[thread overview]
Message-ID: <20030819122451.0b092b6b.davem@redhat.com> (raw)
In-Reply-To: <1061321268.3744.20.camel@athena.fprintf.net>

On 19 Aug 2003 15:27:48 -0400
Daniel Gryniewicz <dang@fprintf.net> wrote:

> On Tue, 2003-08-19 at 15:21, Andi Kleen wrote:
> > On Tue, Aug 19, 2003 at 03:17:00PM -0400, Daniel Gryniewicz wrote:
> > > On Tue, 2003-08-19 at 14:48, Andi Kleen wrote:
> > > > In my experience everybody who wants a different behaviour use some
> > > > more or less broken stateful L2/L3 switching hacks (like ipvs) or
> > > > having broken routing tables. While such hacks may be valid for some
> > > > uses they should not impact the default case.
> > > 
> > > So, changing your default route is a "hack"?  That's all that's
> > > necessary.  You can even do it with "route del/route add".
> > 
> > Necessary to do what exactly? 
> 
> Cause Linux to issue an arp request with a tell address not on the
> interface sending the arp.

Nobody has shown this to be invalid.  In fact, it has been shown
clearly that systems not responding to such ARP requests are buggy.

The only thing a system implementor can claim this accomplishes
is "pseudo security", and it barely even provides that.

  reply	other threads:[~2003-08-19 19:34 UTC|newest]

Thread overview: 164+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <mdtk.Zy.1@gated-at.bofh.it>
     [not found] ` <mgUv.3Wb.39@gated-at.bofh.it>
     [not found]   ` <mgUv.3Wb.37@gated-at.bofh.it>
     [not found]     ` <miMw.5yo.31@gated-at.bofh.it>
2003-08-19 18:48       ` [2.4 PATCH] bugfix: ARP respond on all devices Andi Kleen
2003-08-19 19:17         ` Daniel Gryniewicz
2003-08-19 19:21           ` Andi Kleen
2003-08-19 19:27             ` Daniel Gryniewicz
2003-08-19 19:24               ` David S. Miller [this message]
2003-08-19 19:32               ` Andi Kleen
2003-08-19 19:28                 ` David S. Miller
2003-08-20  9:53                   ` Alan Cox
2003-08-20 15:41                   ` Stephan von Krawczynski
2003-08-20 15:38                     ` David S. Miller
2003-08-19 19:38           ` Valdis.Kletnieks
2003-08-19 19:37             ` David S. Miller
2003-08-19 20:44               ` Valdis.Kletnieks
2003-08-20 20:10 Richard Underwood
  -- strict thread matches above, loose matches on Subject: below --
2003-08-20  8:58 Richard Underwood
2003-08-20 15:23 ` jamal
2003-08-20 15:28   ` jamal
2003-08-19 22:12 Richard Underwood
2003-08-19 22:11 ` David S. Miller
2003-08-19 23:15   ` Stephan von Krawczynski
     [not found] <mfYi.374.31@gated-at.bofh.it>
     [not found] ` <mkbE.6Rk.35@gated-at.bofh.it>
2003-08-19 20:00   ` Andi Kleen
2003-08-19 19:56     ` David S. Miller
2003-08-19 19:00 Richard Underwood
2003-08-19 18:58 ` David S. Miller
2003-08-19 18:16 Richard Underwood
2003-08-19 18:13 ` David S. Miller
2003-08-19 18:30   ` Bas Bloemsaat
2003-08-19 18:05 Richard Underwood
2003-08-19 18:21 ` David S. Miller
2003-08-20 12:52   ` Harley Stenzel
2003-08-19 17:56 Richard Underwood
2003-08-19 17:53 ` David S. Miller
2003-08-19 16:54 Richard Underwood
2003-08-19 16:51 ` David S. Miller
2003-08-19 17:10   ` Stephan von Krawczynski
2003-08-19 17:07     ` David S. Miller
2003-08-19 19:57       ` bill davidsen
2003-08-19 14:34 Richard Underwood
2003-08-19 14:54 ` Willy Tarreau
2003-08-19 15:07   ` Stephan von Krawczynski
2003-08-19 15:57     ` David S. Miller
2003-08-19 16:52       ` Stephan von Krawczynski
2003-08-19 16:53         ` David S. Miller
2003-08-19 17:12           ` Stephan von Krawczynski
2003-08-19 17:09             ` David S. Miller
2003-08-19 19:04         ` Alan Cox
2003-08-19 19:01           ` David S. Miller
2003-08-19 19:19             ` Bas Bloemsaat
2003-08-19 19:16               ` David S. Miller
2003-08-20  8:49               ` Roman Pletka
2003-08-20 14:15                 ` Stephan von Krawczynski
2003-08-20 14:43                   ` Roman Pletka
2003-08-20 15:55                     ` Stephan von Krawczynski
2003-08-20 16:47                       ` Roman Pletka
2003-08-19 15:53   ` Bill Davidsen
2003-08-19 16:14     ` David S. Miller
2003-08-19 17:17       ` Bill Davidsen
2003-08-19 19:08 ` Alan Cox
2003-08-19 21:53   ` Stephan von Krawczynski
2003-08-19 12:02 Richard Underwood
2003-08-19 12:35 ` Alan Cox
2003-08-19 18:30   ` Daniel Gryniewicz
2003-08-19 18:29     ` David S. Miller
2003-08-19 19:12       ` Daniel Gryniewicz
2003-08-19 19:10         ` David S. Miller
2003-08-20 16:49         ` Bill Davidsen
2003-08-20 17:00           ` David S. Miller
2003-08-20 17:44             ` Ben Greear
2003-08-20 17:48               ` David S. Miller
2003-08-20 23:18                 ` Julian Anastasov
2003-08-23 20:50                 ` Bill Davidsen
2003-08-20 19:08             ` Bill Davidsen
2003-08-20 20:07               ` Bas Bloemsaat
2003-08-19 19:42       ` bill davidsen
2003-08-19 13:11 ` Bas Bloemsaat
2003-08-19 15:34   ` David S. Miller
2003-08-19 17:39     ` Lars Marowsky-Bree
2003-08-19 17:36       ` David S. Miller
2003-08-19 21:01         ` Harley Stenzel
2003-08-19 16:19   ` Stephan von Krawczynski
2003-08-19 16:54   ` David S. Miller
2003-08-19 17:15     ` Stephan von Krawczynski
2003-08-19 16:56 ` David S. Miller
     [not found] <e2Yb.5CB.17@gated-at.bofh.it>
     [not found] ` <e43Y.6x0.17@gated-at.bofh.it>
     [not found]   ` <e43Y.6x0.19@gated-at.bofh.it>
     [not found]     ` <e43Y.6x0.21@gated-at.bofh.it>
     [not found]       ` <e43Y.6x0.23@gated-at.bofh.it>
     [not found]         ` <e43Y.6x0.25@gated-at.bofh.it>
     [not found]           ` <e43Y.6x0.15@gated-at.bofh.it>
     [not found]             ` <e4nd.6K9.5@gated-at.bofh.it>
     [not found]               ` <e4ne.6K9.11@gated-at.bofh.it>
     [not found]                 ` <e4x3.6RV.23@gated-at.bofh.it>
     [not found]                   ` <e4Qe.7cR.3@gated-at.bofh.it>
     [not found]                     ` <e503.7kj.23@gated-at.bofh.it>
     [not found]                       ` <e5jh.7yW.5@gated-at.bofh.it>
     [not found]                         ` <edJU.6nT.25@gated-at.bofh.it>
2003-07-28 20:45                           ` Julien Oster
2003-07-27 20:52 Bas Bloemsaat
2003-07-27 22:12 ` David S. Miller
2003-07-28  2:31   ` Ben Greear
2003-07-28  7:33     ` Bas Bloemsaat
2003-07-27 23:40 ` Carlos Velasco
2003-07-27 23:46   ` David S. Miller
2003-07-27 23:58     ` Carlos Velasco
2003-07-27 23:58       ` David S. Miller
2003-07-28  0:11         ` Carlos Velasco
2003-07-28  0:14           ` David S. Miller
2003-07-28  0:35             ` Carlos Velasco
2003-07-28  0:36               ` David S. Miller
2003-07-28  0:53                 ` Carlos Velasco
2003-07-28  0:55                   ` David S. Miller
2003-07-28  1:23                     ` Carlos Velasco
2003-07-28  1:35                       ` David S. Miller
2003-07-28 10:43                         ` Carlos Velasco
2003-07-28 17:09                           ` Phil Oester
2003-07-28 18:56                             ` Bas Bloemsaat
2003-07-28  4:37                     ` David Lang
2003-07-28  4:39                       ` David S. Miller
2003-07-28 10:49                       ` Carlos Velasco
2003-07-29  2:51     ` Bill Davidsen
2003-07-29  4:48       ` Lamont Granquist
2003-08-04  6:10         ` Pekka Savola
2003-08-17 13:09         ` Carlos Velasco
2003-08-17 13:16           ` Carlos Velasco
2003-08-17 13:41             ` Alan Cox
2003-08-17 13:55               ` Carlos Velasco
2003-08-17 15:12                 ` Bernd Eckenfels
2003-08-17 15:28                 ` Alan Cox
2003-08-17 15:57                   ` Bas Bloemsaat
2003-08-17 15:59                   ` Carlos Velasco
2003-08-17 16:26                     ` Alan Cox
2003-08-17 16:27                       ` Carlos Velasco
2003-08-17 17:24                         ` Alan Cox
2003-08-17 22:48                           ` Willy Tarreau
2003-08-18  5:22                             ` David S. Miller
2003-08-18  6:56                               ` Willy Tarreau
2003-08-18  7:01                                 ` David S. Miller
2003-08-18  7:29                                   ` Willy Tarreau
2003-08-18  7:43                                     ` Willy Tarreau
2003-08-18  5:31                             ` David S. Miller
2003-08-18 11:39                               ` Stephan von Krawczynski
2003-08-18 11:44                                 ` David S. Miller
2003-08-18 12:34                                   ` Stephan von Krawczynski
2003-08-18 12:30                                     ` David S. Miller
2003-08-18 12:51                                       ` Mr. James W. Laferriere
2003-08-18 12:53                                       ` Stephan von Krawczynski
2003-08-18 12:55                                         ` David S. Miller
2003-08-18 13:17                                           ` Stephan von Krawczynski
2003-08-18 13:14                                             ` David S. Miller
2003-08-18 14:23                                               ` Stephan von Krawczynski
2003-08-18 14:19                                                 ` David S. Miller
2003-08-18 15:46                                                   ` Stephan von Krawczynski
2003-08-18 13:23                                           ` jamal
2003-08-18 13:21                                             ` David S. Miller
2003-08-18 13:40                                               ` Stephan von Krawczynski
2003-08-20  6:55                                             ` Bas Bloemsaat
2003-08-18 21:54                                       ` Bill Davidsen
2003-08-18 13:40                                     ` Dominik Kubla
2003-08-18 12:51                                   ` Willy Tarreau
2003-08-18 12:53                                     ` David S. Miller
2003-08-18 14:28                                       ` Willy Tarreau
2003-08-18 14:28                                         ` David S. Miller
2003-08-18 12:08                                 ` Bas Bloemsaat
2003-08-18 12:03                                   ` David S. Miller
2003-08-18 21:32                               ` Bill Davidsen
2003-08-19  3:21                                 ` Ben Greear
2003-08-19 15:22                                   ` David S. Miller
2003-08-19  7:58                                 ` Bas Bloemsaat
2003-08-17 16:51                     ` David T Hollis
2003-08-17 16:45                       ` Carlos Velasco
2003-08-17 17:13                         ` Arjan van de Ven
2003-08-17 19:46                           ` insecure
2003-08-18  5:11                             ` David S. Miller
2003-08-18  5:29                 ` David S. Miller
2003-08-17 13:59               ` Bas Bloemsaat
2003-08-18 10:48               ` Robert Collier
2003-08-17 13:38           ` Alan Cox

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