From: Richard Underwood <richard@aspectgroup.co.uk>
To: "'David S. Miller'" <davem@redhat.com>,
Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: skraw@ithnet.com, willy@w.ods.org,
Richard Underwood <richard@aspectgroup.co.uk>,
carlosev@newipnet.com, lamont@scriptkiddie.org, davidsen@tmr.com,
bloemsaa@xs4all.nl, marcelo@conectiva.com.br, netdev@oss.sgi.com,
linux-net@vger.kernel.org, layes@loran.com, torvalds@osdl.org,
linux-kernel@vger.kernel.org
Subject: RE: [2.4 PATCH] bugfix: ARP respond on all devices
Date: Wed, 20 Aug 2003 09:58:51 +0100 [thread overview]
Message-ID: <353568DCBAE06148B70767C1B1A93E625EAB61@post.pc.aspectgroup.co.uk> (raw)
David S. Miller wrote:
>
> Indeed, would people stop quoting from RFC 985 and
> RFC 826.
In case anyone missed it, the following message was posted to
linux-net and netdev. This is currently a draft standard, but anyone
implementing IPv6 should be following it. It clearly states that the the
source address for the equivalent of the ARP request should be the INTERFACE
address.
While it doesn't directly apply to IPv4 (except for David's claim
that IPv4 ARP is based on IPv6 ARP) it does clarify the situation nicely.
I, for one, will be glad when (!) we all migrade to IPv6 and we can
once and all be done with this nonsense, unless Linux plans to deviate from
the standard?
Thanks,
Richard
-----Original Message-----
From: Steven Blake [mailto:slblake@petri-meat.com]
Sent: 20 August 2003 05:58
To: David S. Miller
Cc: netdev@oss.sgi.com; linux-net@vger.kernel.org
Subject: Re: [2.4 PATCH] bugfix: ARP respond on all devices
On Tue, 2003-08-19 at 13:53, David S. Miller wrote:
> BTW, this ARP source address algorithm we use comes from
> ipv6, it would be instructive to go and see why they do
> things the way they do.
Are you sure? See below:
========================================================================
RFC 2461 Neighbor Discovery for IPv6 December 1998
4.3. Neighbor Solicitation Message Format
Nodes send Neighbor Solicitations to request the link-layer address
of a target node while also providing their own link-layer address to
the target. Neighbor Solicitations are multicast when the node needs
to resolve an address and unicast when the node seeks to verify the
reachability of a neighbor.
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Type | Code | Checksum |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Reserved |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| |
+ +
| |
+ Target Address +
| |
+ +
| |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Options ...
+-+-+-+-+-+-+-+-+-+-+-+-
IP Fields:
Source Address
Either an address assigned to the interface from
which this message is sent or (if Duplicate Address
Detection is in progress [ADDRCONF]) the
unspecified address.
Destination Address
Either the solicited-node multicast address
corresponding to the target address, or the target
address.
Hop Limit 255
Authentication Header
If a Security Association for the IP Authentication
Header exists between the sender and the
destination address, then the sender SHOULD include
this header.
Narten, et. al. Standards Track [Page 21]
========================================================================
Regards,
// Steve
next reply other threads:[~2003-08-20 8:59 UTC|newest]
Thread overview: 164+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-08-20 8:58 Richard Underwood [this message]
2003-08-20 15:23 ` [2.4 PATCH] bugfix: ARP respond on all devices jamal
2003-08-20 15:28 ` jamal
-- strict thread matches above, loose matches on Subject: below --
2003-08-20 20:10 Richard Underwood
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
[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 ` 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
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
2003-08-19 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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