NetBSD Problem Report #23551
Received: (qmail 4282 invoked by uid 605); 23 Nov 2003 18:07:25 -0000
Message-Id: <20031123180724.913DE66839@sonic.wsrcc.com>
Date: Sun, 23 Nov 2003 10:07:24 -0800 (PST)
From: wolfgang@wsrcc.com
Sender: gnats-bugs-owner@NetBSD.org
Reply-To: wolfgang@wsrcc.com
To: gnats-bugs@gnats.netbsd.org
Subject: mrouted and/or ethereal packet disagreement
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>Number: 23551
>Category: bin
>Synopsis: mrouted and/or ethereal packet disagreement
>Confidential: no
>Severity: non-critical
>Priority: low
>Responsible: bin-bug-people
>State: open
>Class: sw-bug
>Submitter-Id: net
>Arrival-Date: Sun Nov 23 18:08:00 +0000 2003
>Closed-Date:
>Last-Modified:
>Originator: Wolfgang S. Rupprecht
>Release: NetBSD 1.6ZF
>Organization:
W S Rupprecht Computer Consulting, Fremont CA
>Environment:
System: NetBSD capsicum.wsrcc.com 1.6ZF NetBSD 1.6ZF (WSRCC_ATHLON) #1: Sun Nov 16 18:47:58 PST 2003 wolfgang@capsicum.wsrcc.com:/var/obj/netbsd/sys/arch/i386/compile/WSRCC_ATHLON i386
Architecture: i386
Machine: i386
>Description:
mrouted and ethereal (from pkgsrc) disagree on what
constitutes a valid packet.
>How-To-Repeat:
create an empty /etc/mrouted.conf file
ethereal &
<start it running via ^K>
mrouted -d 3
In ethereal expand the multicast packets marked "DVMRP" in the
display window. The packet shown are marked as garbled, and
sure look garbled when compared to the RFC.
(one can apply a multicast filter to make it easier to find
the packets. ip.dst == 224.0.0.0/8 )
It is not entirely clear which program is at fault. I don't
have a multicast peer to test against. I was just wondering
if multicast worked at my ISP and getting no reply from
mrouted I tried to see if the other side was sending any
packets.
>Fix:
>Release-Note:
>Audit-Trail:
>Unformatted:
(Contact us)
$NetBSD: query-full-pr,v 1.39 2013/11/01 18:47:49 spz Exp $
$NetBSD: gnats_config.sh,v 1.8 2006/05/07 09:23:38 tsutsui Exp $
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