touch-packages team mailing list archive

[Chris Good <chris.good@xxxxxxxxxxxxxx>]

This bug has been raised with Avahi as http://avahi.org/ticket/352 but there doesn't  seem to have been any action on this in 4 years.
I'm going to contact them. I've got tcpdump's of the packets.

I'm seeing these apparently bad packets come from a Windows 10 pre-
release build 10240 machine. I guess I'm going to see a lot more with
Windows 10 being offically released on 29/7/2015.

These messages are appearing in syslog for my machines:
Ubuntu 12.04 avahi-daemon 0.6.30-5ubuntu2
Ubuntu 14.04 avahi-daemon 0.6.31-4ubuntu1

Looks like server.c code used in Ubuntu Wily 15.04 has not had the patch above applied.
See http://bazaar.launchpad.net/~ubuntu-branches/ubuntu/wily/avahi/wily/view/head:/avahi-core/server.c
Vivid 14.10 + Wily 15.04 both use 0.6.31-4ubuntu4.

Turning off IPv6 (leaving IPv4 on), on the Windows 10 machine stops the
messages.

** Bug watch added: Avahi Bugs #352
   http://www.avahi.org/ticket/352

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https://bugs.launchpad.net/bugs/1342400

Title:
  avahi-daemon constantly reporting "Invalid response packet from host"

Status in avahi package in Ubuntu:
  Confirmed

Bug description:
  After installing Ubuntu 14.04 (Release: 14.04) and looking for other
  information in /var/log/syslog, I see that syslog is being flooded by
  "Invalid response packet from host" messages from avahi-daemon.

  I searched around to see why this might be and ran across the following avahi mailing list post along with a patch to fix it:
  http://lists.freedesktop.org/archives/avahi/2012-July/002171.html

  >>>
  I would say you can safely ignore it, since any machine on your
  network running a recent OSX version will cause these messages.
  Here's a patch with what we change to avoid these messages flooding
  syslog.

  -Justin
  <<<

  The patch which fixes this is here:
  http://lists.freedesktop.org/archives/avahi/attachments/20120719/1e71846e/attachment.obj

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