[Bug 1342400] Re: avahi-daemon constantly reporting "Invalid response packet from host"

[Launchpad Bug Tracker]

This bug was fixed in the package avahi - 0.6.31-4ubuntu1.1

---
avahi (0.6.31-4ubuntu1.1) trusty; urgency=medium

  * debian/patches/lp-1342400-invalid-response-packet.patch:
- Stop printing "Invalid response packet" messages to system log, they can
  occur frequently filling the logs from some mDNS stacks.  Patch from
  upstream commit de7cde877e4daa5d9d4fb5b1a349299eaa94969d (LP: #1342400)

 -- Trent Lloyd   Fri, 10 Jun 2016 07:12:31
+

** Changed in: avahi (Ubuntu Trusty)
   Status: Fix Committed => Fix Released

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[Bug 1342400] Re: avahi-daemon constantly reporting "Invalid response packet from host"

[Brian Murray]

** Tags removed: verification-needed
** Tags added: verification-done

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[Bug 1342400] Re: avahi-daemon constantly reporting "Invalid response packet from host"

[Dan Sperka]

Tested on trusty amd64, extraneous syslog messages have disappeared.

As there is no rollup package in trusty to fetch everything, I had to
install the following packages from trusty-proposed

All are version 0.6.31-4ubuntu1.1_amd64

avahi-daemon/trusty-proposed
avahi-utils/trusty-proposed
avahi-autoipd/trusty-proposed



libavahi-core7/trusty-proposed 
libavahi-client3/trusty-proposed 
libavahi-common-data/trusty-proposed 
libavahi-common3/trusty-proposed 
libavahi-glib1/trusty-proposed 
libavahi-gobject0/trusty-proposed

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[Bug 1342400] Re: avahi-daemon constantly reporting "Invalid response packet from host"

[Mathew Hodson]

** Tags removed: verification-neededd
** Tags added: verification-needed

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[Bug 1342400] Re: avahi-daemon constantly reporting "Invalid response packet from host"

[Martin Pitt]

This still needs to be tested on trusty, adjusting tags.

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[Bug 1342400] Re: avahi-daemon constantly reporting "Invalid response packet from host"

[Launchpad Bug Tracker]

This bug was fixed in the package avahi - 0.6.30-5ubuntu2.2

---
avahi (0.6.30-5ubuntu2.2) precise; urgency=medium

  * debian/patches/lp-1342400-invalid-response-packet.patch:
- Stop printing "Invalid response packet" messages to system log, they can
  occur frequently filling the logs from some mDNS stacks.  Patch from
  upstream commit de7cde877e4daa5d9d4fb5b1a349299eaa94969d (LP: #1342400)

 -- Trent Lloyd   Fri, 10 Jun 2016 07:12:31
+

** Changed in: avahi (Ubuntu Precise)
   Status: Fix Committed => Fix Released

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[Bug 1342400] Re: avahi-daemon constantly reporting "Invalid response packet from host"

[Martin Pitt]

** Tags removed: verification-done
** Tags added: verification-done-precise verification-neededd

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[Bug 1342400] Re: avahi-daemon constantly reporting "Invalid response packet from host"

[Mathew Hodson]

** Changed in: avahi (Ubuntu Precise)
   Importance: Undecided => High

** Changed in: avahi (Ubuntu Trusty)
   Importance: Undecided => High

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[Bug 1342400] Re: avahi-daemon constantly reporting "Invalid response packet from host"

[Pali]

Ubuntu precise version working, verified.

** Tags removed: verification-needed
** Tags added: verification-done

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[Bug 1342400] Re: avahi-daemon constantly reporting "Invalid response packet from host"

[Martin Pitt]

Hello Steve, or anyone else affected,

Accepted avahi into trusty-proposed. The package will build now and be
available at
https://launchpad.net/ubuntu/+source/avahi/0.6.31-4ubuntu1.1 in a few
hours, and then in the -proposed repository.

Please help us by testing this new package.  See
https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to
enable and use -proposed.  Your feedback will aid us getting this update
out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug,
mentioning the version of the package you tested, and change the tag
from verification-needed to verification-done. If it does not fix the
bug for you, please add a comment stating that, and change the tag to
verification-failed.  In either case, details of your testing will help
us make a better decision.

Further information regarding the verification process can be found at
https://wiki.ubuntu.com/QATeam/PerformingSRUVerification .  Thank you in
advance!

** Changed in: avahi (Ubuntu Precise)
   Status: New => In Progress

** Changed in: avahi (Ubuntu Trusty)
   Status: In Progress => Fix Committed

** Tags added: verification-needed

** Changed in: avahi (Ubuntu Precise)
   Status: In Progress => Fix Committed

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[Bug 1342400] Re: avahi-daemon constantly reporting "Invalid response packet from host"

[Martin Pitt]

Uploaded to trusty SRU review queue with fixed LP bug ref in the
changelog, thanks!

** Changed in: avahi (Ubuntu Trusty)
   Status: New => In Progress

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[Bug 1342400] Re: avahi-daemon constantly reporting "Invalid response packet from host"

[Martin Pitt]

Xenial and Yakkety already have this fix.

** Also affects: avahi (Ubuntu Trusty)
   Importance: Undecided
   Status: New

** Also affects: avahi (Ubuntu Precise)
   Importance: Undecided
   Status: New

** Changed in: avahi (Ubuntu)
   Status: Confirmed => Fix Released

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[Bug 1342400] Re: avahi-daemon constantly reporting "Invalid response packet from host"

[Sebastien Bacher]

** Changed in: avahi (Ubuntu)
   Importance: Medium => High

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[Bug 1342400] Re: avahi-daemon constantly reporting "Invalid response packet from host"

[Bug Watch Updater]

** Changed in: avahi (Debian)
   Status: Unknown => Fix Released

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[Bug 1342400] Re: avahi-daemon constantly reporting "Invalid response packet from host"

[Mathew Hodson]

** Tags added: trusty

** Changed in: avahi (Ubuntu)
   Importance: Undecided => Medium

** Tags added: precise

** Also affects: avahi (Debian) via
   http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=805379
   Importance: Unknown
   Status: Unknown

** Bug watch added: Debian Bug tracker #639163
   http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=639163

** Changed in: avahi (Debian)
 Remote watch: Debian Bug tracker #805379 => Debian Bug tracker #639163

** Bug watch removed: Debian Bug tracker #805379
   http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=805379

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[Bug 1342400] Re: avahi-daemon constantly reporting "Invalid response packet from host"

[Trent Lloyd]

** Patch added: "debdiff for precise"
   
https://bugs.launchpad.net/ubuntu/+source/avahi/+bug/1342400/+attachment/4690004/+files/lp1342400-avahi-invalid-response-packet-precise.debdiff

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[Bug 1342400] Re: avahi-daemon constantly reporting "Invalid response packet from host"

[Harry Hodge]

@lathiat - I've been running the package since this morning. Normally
get "...Invalid response packet from host..." messages logged every ~20
seconds into syslog, but since updating to the patched package, I
haven't seen a single error logged.

This is on Ubuntu 14.04.4.

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[Bug 1342400] Re: avahi-daemon constantly reporting "Invalid response packet from host"

[Pali]

Also affects LTS precise release. Can you upload also fix for precise?

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[Bug 1342400] Re: avahi-daemon constantly reporting "Invalid response packet from host"

[Trent Lloyd]

Also uploaded and built the package here, so people can test it out if they 
want.  Would love feedback from someone with the issue to confirm it fixes it:
https://launchpad.net/~lathiat/+archive/ubuntu/lp1342400-avahi-invalid-response-packet

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[Bug 1342400] Re: avahi-daemon constantly reporting "Invalid response packet from host"

[Trent Lloyd]

Attaching debdiff for sponsorship into trusty.  Applies upstream commit
(by myself) to fix this issue.

Not required in xenial, but could be uploaded into wily.

** Patch added: "lp1342400-avahi-invalid-response-packet.debdiff"
   
https://bugs.launchpad.net/ubuntu/+source/avahi/+bug/1342400/+attachment/4689450/+files/lp1342400-avahi-invalid-response-packet.debdiff

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[Bug 1342400] Re: avahi-daemon constantly reporting "Invalid response packet from host"

[clement.analogue]

Hello,

I am affected by this bug on Ubuntu 14.04. I am working in a scientific
institute with almost a thousand computers. I received 48 millions
entries in syslog the last 48 hours, making a 4.4GB file :/

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Re: [Bug 1342400] Re: avahi-daemon constantly reporting "Invalid response packet from host"

[Pali]

On Thursday 24 March 2016 02:14:56 Trent Lloyd wrote:
> I am going to build and propose an SRU to precise & trusty to fix this
> issue.

Hi! Any update on this? Updated avahi packages in precise & trusty
repositories should fix this problem...

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[Bug 1342400] Re: avahi-daemon constantly reporting "Invalid response packet from host"

[Louis]

Oh and I did check and there seems to be a similar  bug report field already in 
bugs.debian.org against the version  0.6.32~rc+dfsg-1 on the i386 platform:
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=805379 

** Bug watch added: Debian Bug tracker #805379
   http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=805379

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[Bug 1342400] Re: avahi-daemon constantly reporting "Invalid response packet from host"

[Louis]

I thought this may be occurring but I deleted the original "old" 0.6.31
version file in /usr/sbin/avahi-daemon  and replaced it with the newer
one I compiled from 0.6.32 and also left another copy in /usr/local/sbin
/avahi-daemon.   So when I search my files for avahi-daemon only 2
copies of the newer one show up.

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[Bug 1342400] Re: avahi-daemon constantly reporting "Invalid response packet from host"

[Trent Lloyd]

Most likely your issue is that the system init scripts are starting the
packaged binary from /usr/sbin/avahi-daemon instead of your compiled
binary from /usr/local/sbin/avahi-daemon

I am going to build and propose an SRU to precise & trusty to fix this
issue.


For Debian Jessie on your rpi, you'll need to file a bug at bugs.debian.org 
(though I think there already is one)

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[Bug 1342400] Re: avahi-daemon constantly reporting "Invalid response packet from host"

[Louis]

Forgot to address  the libdaemon question:


pi@raspberrypi:~ $ sudo apt-show-versions -r libdaemon
libdaemon-dev:armhf/jessie 0.14-6 uptodate
libdaemon0:armhf/jessie 0.14-6 uptodate

Thanks again!

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[Bug 1342400] Re: avahi-daemon constantly reporting "Invalid response packet from host"

[Louis]

Hi - thanks for response! I have become quite set (read obsessed) on
fixing this even though I only see the error every 40secs and I filter
blocked  it out from polluting my syslog file.

I installed from the avahi-0.6.32.tar.gz using :
./configure
make
sudo make install

also  make clean (between recompiles)

pi@raspberrypi:~ $ sudo which avahi-daemon
/usr/local/sbin/avahi-daemon
pi@raspberrypi:~ $ sudo dpkg -l avahi-daemon
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name   Version  Architecture Description
+++-==---=
rc  avahi-daemon   0.6.31-5 armhfAvahi mDNS/DNS-SD daemon


Also, stranger still, is that I totally commented out the suspected offending 
log line in the server.c file and recompiled the project - so this could be 
more about my lack of compiling skills than avahi issue??

/*avahi_log_debug("Invalid response packet from host %s.",
avahi_address_snprint(t, sizeof(t), src_address)); */

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[Bug 1342400] Re: avahi-daemon constantly reporting "Invalid response packet from host"

[Trent Lloyd]

Actually that might happen if you don't have a newer libdaemon (they
made some changes to default log levels), I'll have to check on that.

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[Bug 1342400] Re: avahi-daemon constantly reporting "Invalid response packet from host"

[Trent Lloyd]

How did you install avahi?

Can you run this:

sudo which avahi-daemon
sudo dpkg -l avahi-daemon

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[Bug 1342400] Re: avahi-daemon constantly reporting "Invalid response packet from host"

[Louis]

I did download and install the latest version 0.6.32 but I still see those 
warnings about the Invalid response packet.
For example with commands:


pi@raspberrypi:~ $ sudo service avahi-daemon status
● avahi-daemon.service - LSB: Avahi mDNS/DNS-SD Daemon
   Loaded: loaded (/etc/init.d/avahi-daemon)
   Active: active (running) since Wed 2016-03-23 00:14:41 EDT; 9h ago
  Process: 25630 ExecStop=/etc/init.d/avahi-daemon stop (code=exited, 
status=0/SUCCESS)
  Process: 25638 ExecStart=/etc/init.d/avahi-daemon start (code=exited, 
status=0/SUCCESS)
 Main PID: 16156 (code=exited, status=0/SUCCESS)
   CGroup: /system.slice/avahi-daemon.service
   └─25644 avahi-daemon: running [raspberrypi.local]

Mar 23 09:11:07 raspberrypi avahi-daemon[25644]: Invalid response packet fro
Mar 23 09:12:27 raspberrypi avahi-daemon[25644]: Invalid response packet fro
Mar 23 09:13:08 raspberrypi avahi-daemon[25644]: Invalid response packet fro
Mar 23 09:13:48 raspberrypi avahi-daemon[25644]: Invalid response packet fro
Mar 23 09:14:28 raspberrypi avahi-daemon[25644]: Invalid response packet fro
Mar 23 09:15:08 raspberrypi avahi-daemon[25644]: Invalid response packet fro
Mar 23 09:15:48 raspberrypi avahi-daemon[25644]: Invalid response packet fro
Mar 23 09:16:29 raspberrypi avahi-daemon[25644]: Invalid response packet fro
Mar 23 09:17:09 raspberrypi avahi-daemon[25644]: Invalid response packet fro
Mar 23 09:17:49 raspberrypi avahi-daemon[25644]: Invalid response packet fro
Hint: Some lines were ellipsized, use -l to show in full.
pi@raspberrypi:~ $ sudo avahi-daemon --version
avahi-daemon 0.6.32

I did struggle with the new compile and install though since I am new to
the Linux system.  Is there anything I may have missed or done wrong?

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[Bug 1342400] Re: avahi-daemon constantly reporting "Invalid response packet from host"

[Heraldo Madeira]

Avahi has released version 0.6.32 today. 
Full details and downloads at the link 
https://github.com/lathiat/avahi/releases/tag/v0.6.32

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[Bug 1342400] Re: avahi-daemon constantly reporting "Invalid response packet from host"

[Pali]

Here is upstream patch which fix this problem:
https://github.com/lathiat/avahi/commit/de7cde877e4daa5d9d4fb5b1a349299eaa94969d

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[Bug 1342400] Re: avahi-daemon constantly reporting "Invalid response packet from host"

[Richard]

One can install the 16.04 package that is 0.6.32 rc

basically (ensure your architecture is right)

wget 
http://launchpadlibrarian.net/227449619/libavahi-core7_0.6.32~rc%2Bdfsg-1ubuntu2_amd64.deb
sudo dpkg -i libavahi-core7_0.6.32~rc+dfsg-1ubuntu2_amd64.deb
sudo systemctl restart avahi-daemon

Proven to work for 15.10

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[Bug 1342400] Re: avahi-daemon constantly reporting "Invalid response packet from host"

[lawrence]

Can confirm that this still has not been fixed in 15.10 Would appreciate
some clearer instructions with patching to 6.32 as this is a real
headache! :(

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[Bug 1342400] Re: avahi-daemon constantly reporting "Invalid response packet from host"

[Levi Bard]

Still occurs on 15.10

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[Bug 1342400] Re: avahi-daemon constantly reporting "Invalid response packet from host"

[helloworld]

It's out of context but can someone please provide the instructions to
update to the 6.32 rc version. Thanks..

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[Bug 1342400] Re: avahi-daemon constantly reporting "Invalid response packet from host"

[Pali]

@xyzdragon (xyzdragon): Filtering in rsyslog does not work, you will hit
imuxsock rate-limiting limit on networks with lot of windows machines:

rsyslogd-2177: imuxsock begins to drop messages from pid 2303 due to 
rate-limiting
rsyslogd-2177: imuxsock lost 51 messages from pid 2303 due to rate-limiting
rsyslogd-2177: imuxsock begins to drop messages from pid 2303 due to 
rate-limiting
rsyslogd-2177: imuxsock lost 24 messages from pid 2303 due to rate-limiting
rsyslogd-2177: imuxsock begins to drop messages from pid 2303 due to 
rate-limiting
rsyslogd-2177: imuxsock lost 78 messages from pid 2303 due to rate-limiting
rsyslogd-2177: imuxsock begins to drop messages from pid 2303 due to 
rate-limiting
rsyslogd-2177: imuxsock lost 110 messages from pid 2303 due to rate-limiting
rsyslogd-2177: imuxsock begins to drop messages from pid 2303 due to 
rate-limiting
rsyslogd-2177: imuxsock lost 10 messages from pid 2303 due to rate-limiting
rsyslogd-2177: imuxsock begins to drop messages from pid 2303 due to 
rate-limiting
rsyslogd-2177: imuxsock lost 10 messages from pid 2303 due to rate-limiting
rsyslogd-2177: imuxsock begins to drop messages from pid 2303 due to 
rate-limiting
rsyslogd-2177: imuxsock lost 161 messages from pid 2303 due to rate-limiting
rsyslogd-2177: imuxsock begins to drop messages from pid 2303 due to 
rate-limiting
rsyslogd-2177: imuxsock lost 169 messages from pid 2303 due to rate-limiting
rsyslogd-2177: imuxsock begins to drop messages from pid 2303 due to 
rate-limiting
rsyslogd-2177: imuxsock lost 79 messages from pid 2303 due to rate-limiting
rsyslogd-2177: imuxsock begins to drop messages from pid 2303 due to 
rate-limiting
rsyslogd-2177: imuxsock lost 17 messages from pid 2303 due to rate-limiting
rsyslogd-2177: imuxsock begins to drop messages from pid 2303 due to 
rate-limiting
rsyslogd-2177: imuxsock lost 125 messages from pid 2303 due to rate-limiting
rsyslogd-2177: imuxsock begins to drop messages from pid 2303 due to 
rate-limiting
rsyslogd-2177: imuxsock lost 24 messages from pid 2303 due to rate-limiting
rsyslogd-2177: imuxsock begins to drop messages from pid 2303 due to 
rate-limiting
rsyslogd-2177: imuxsock lost 23 messages from pid 2303 due to rate-limiting

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[Bug 1342400] Re: avahi-daemon constantly reporting "Invalid response packet from host"

[xyzdragon]

Instead of a cronjob or compiling the patch, you also could add a 
rsyslog-filter in /etc/rsyslog.conf:
# put this line before the line with *.*;auth,authpriv.none  
-/var/log/syslog
:msg, contains, "Invalid response packet from host" stop
#then restart rsyslog to apply the settings
sudo service rsyslog restart

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[Bug 1342400] Re: avahi-daemon constantly reporting "Invalid response packet from host"

[Miguel Rubio-Roy]

I confirm that the patch in https://github.com/lathiat/avahi/issues/10
solves the problem and returns calm to our logs.

apt-get source libavahi-core7
cd avahi-0.6.31
change avahi-core/server.c according to patch
apt-get build-dep libavahi-core7
debuild -b -uc -us
cd ..
dpkg -i libavahi-core7_0.6.31-4ubuntu4_amd64.deb
systemctl restart avahi-daemon

Please include this in any future update. It is very annoying.

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[Bug 1342400] Re: avahi-daemon constantly reporting "Invalid response packet from host"

[Luis Lobo]

It has been fixed by the avahi guy, there is a 0.6.32-rc version.
Please update before wily release, this is really annoying, imagine having this 
released, any windows 10 machine will fill our logs...

AVAHI news on http://avahi.org/
2015-10-10: We have a release candidate, ​0.6.32-rc! This is mostly a bugfix 
release, see the ​Change Log. This is intended for release soon, please file 
any issues you notice through

Changelog:
Avahi 0.6.32-rc
===

This is largely a bugfix release, non-bug changes are listed separately.

 * Don't log warnings about invalid packets, commonly triggered by Windows 10 
systems
 * Fix issue with bad packet size estimation, causing probes to continuously be 
sent when hosting large numbers of services (Lee, Chun-Yi)
 * Fix build on Solaris/SmartOS (filio.h issue)
 * Fix build on FreeBSD (PCAP_D_IN issue)
 * Fix debug output with libdaemon >= 0.14
 * avahi_server_set_browse_domains now correctly uses the provided list, 
instead of re-using the list from the configuration file
 * Set nl_pid to 0, this will automatically assign the value and prevent 
conflicts per netlink(7). (Bug #334)
 * Check for netlink pid=0 (kernel) instead of uid=0, which works correctly 
with network & user namespaces.
 * Fix reversed IFA_LOCAL and IFA_ADDRESS checks. (Avahi#355)
 * Don't fail the build on deprecated GTK/GLIB usage
 * Gracefully fail if SO_REUSEPORT is not available
 * Minor Python 3 update for the python ServiceTypeDatabase test usage of 
print, should be backwards compatible

Changes

 * GTK3 deprecation fixes including vbox, g_object_unref on GdkCursor, stock 
items, composite API
 * New feature: host-name-from-machine-id= to configure the hostname from the 
machine-id, defaults to off.
 * Configuration change: Enable IPv6 by default (use-ipv6=yes)
 * Configuration change: Disable publishing HINFO and WORKSTATION records in 
the default config (publish-hinfo=no, publish-workstation=no)
 * Configuration change: Don't browse 0pointer.de and zeroconf.org wide-area by 
default (browse-domain=)

This release is backwards compatible with Avahi 0.6.x with x < 32.

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[Bug 1342400] Re: avahi-daemon constantly reporting "Invalid response packet from host"

[Dan Lipsitt]

This alternate issue tracker seems to be semi-official:
https://github.com/lathiat/avahi/issues/10

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[Bug 1342400] Re: avahi-daemon constantly reporting "Invalid response packet from host"

[angus73]

Also affects me on ubuntu 15.04 with avahi-daemon 0.6.31 (up to 20
messages per second :-O)

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[Bug 1342400] Re: avahi-daemon constantly reporting "Invalid response packet from host"

[Jemma]

I'm seeing the same error on ubuntu 15.04 with avahi-daemon 0.6.31.
There are up to 2 messages a second:

avahi-daemon[932]: Invalid response packet from host 

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[Bug 1342400] Re: avahi-daemon constantly reporting "Invalid response packet from host"

[ippsatsi]

Ubuntu version: 14.04.2
error message:
avahi-daemon[2900]: Invalid response packet from host 192.168.1.61

from host with windows 10 (192.168.1.61)

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[Bug 1342400] Re: avahi-daemon constantly reporting "Invalid response packet from host"

[robert owings]

Actually the iptables change won't hide the problem.   I thought it had
fixed our problem, but I was mistaken.

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[Bug 1342400] Re: avahi-daemon constantly reporting "Invalid response packet from host"

[robert owings]

Do your iptables ignore INVALID packets?  Consider adding the following
line to your ip6table:

-A INPUT -m state --state INVALID -j DROP

Add it at or near the end of the table...

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[Bug 1342400] Re: avahi-daemon constantly reporting "Invalid response packet from host"

[bicklp]

Im getting this on my Rasspberry Pi 2 also ... every few seconds ... v annoying
192.168.1.15 is a windows 10 box that is hosting a share im connected to using 
CIFS

Sep 14 07:41:22 pi-server avahi-daemon[2628]: Invalid response packet from host 
192.168.1.15.
Sep 14 07:41:47 pi-server avahi-daemon[2628]: Invalid response packet from host 
192.168.1.15.
Sep 14 07:41:51 pi-server avahi-daemon[2628]: Invalid response packet from host 
192.168.1.15.

liked the idea of getting a script to run to clean it out
added this into a script file in /etc/cron.hourly 

sed -i".bak" '/Invalid response packet from host/d' /var/log/syslog

seem to work welljust removes the lines directly from the syslog and
creates a backup /var/log/syslog.bak

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[Bug 1342400] Re: avahi-daemon constantly reporting "Invalid response packet from host"

[hasi]

Also seeing this on 14.04. This is on a large university network. Some comments 
above suggest that this is due to Macs, others suggest that this is perhaps due 
to Windows 10. Any further insights?
This pretty much makes my logs unusable.

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[Bug 1342400] Re: avahi-daemon constantly reporting "Invalid response packet from host"

[hasi]

I just put a script into /etc/cron.hourly/ that will copy the current
syslog into a temporary file, filter out the pollution and cat it back
to overwrite the original log file. Makes it usable again!

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[Bug 1342400] Re: avahi-daemon constantly reporting Invalid response packet from host

[John McPherson]

still present in avahi-daemon 0.6.31 (ubuntu 15.04).

these messages are appearing in my syslog up to 12 times a second,
presumably because there are a lot of Macs on my LAN.

Please apply the patch from comment #5 to the ubuntu package at least -
it's literally a 2-line patch.

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[Bug 1342400] Re: avahi-daemon constantly reporting Invalid response packet from host

[John McPherson]

actually that patch isn't enough. even with just the line
  if (avahi_dns_packet_get_field(p, AVAHI_DNS_FIELD_ANCOUNT) == 0) {
as suggested, I still get this.

Perhaps newer versions of OS X do something that triggers this? Either
way, I think we shouldn't spam people's log files.

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[Bug 1342400] Re: avahi-daemon constantly reporting Invalid response packet from host

[Neuquino]

I posted a message to their mailing list. I will get you up to date of
their answers.

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[Bug 1342400] Re: avahi-daemon constantly reporting Invalid response packet from host

[Chris Good]

I tried contacting http://avahi.org on 28 Jul 2015 and have had no
official response yet, and their webpage registering system is not
working, so I cannot raise a ticket. However, a user on their mailing
list has responded that there are people listening on the mailing list
that may be able to help. Good to know.

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[Bug 1342400] Re: avahi-daemon constantly reporting Invalid response packet from host

[Rich M]

I am suffering from this too, there doesn’t even seem to be any way to
suppress the syslog pollution.

richardm@GTS-TEST-SERVER:~$ avahi-daemon -V
avahi-daemon 0.6.30

richardm@GTS-TEST-SERVER:~$ uname -a
Linux GTS-TEST-SERVER 3.2.0-87-generic #125-Ubuntu SMP Fri Jun 19 08:25:10 UTC 
2015 x86_64 x86_64 x86_64 GNU/Linux

tail -f /var/log/syslog
Aug  5 09:18:00 GTS-TEST-SERVER avahi-daemon[7787]: Registering new address 
record for 10.10.1.230 on eth0.IPv4.
Aug  5 09:18:00 GTS-TEST-SERVER avahi-daemon[7787]: Registering HINFO record 
with values 'X86_64'/'LINUX'.
Aug  5 09:18:00 GTS-TEST-SERVER avahi-daemon[7787]: Invalid response packet 
from host 10.10.1.108.
Aug  5 09:18:01  avahi-daemon[7787]: last message repeated 3 times
Aug  5 09:18:01 GTS-TEST-SERVER avahi-daemon[7787]: Server startup complete. 
Host name is GTS-TEST-SERVER.local. Local service cookie is 3631106496.
Aug  5 09:18:01 GTS-TEST-SERVER avahi-daemon[7787]: Invalid response packet 
from host 10.10.1.108.
Aug  5 09:18:02  avahi-daemon[7787]: last message repeated 4 times
Aug  5 09:18:02 GTS-TEST-SERVER avahi-daemon[7787]: Service GTS-TEST-SERVER 
(/services/udisks.service) successfully established.
Aug  5 09:18:02 GTS-TEST-SERVER avahi-daemon[7787]: Invalid response packet 
from host 10.10.1.108.
Aug  5 09:19:03  avahi-daemon[7787]: last message repeated 48 times
Aug  5 09:20:06  avahi-daemon[7787]: last message repeated 103 times
Aug  5 09:21:07  avahi-daemon[7787]: last message repeated 71 times
Aug  5 09:22:09  avahi-daemon[7787]: last message repeated 38 times
Aug  5 09:23:17  avahi-daemon[7787]: last message repeated 56 times
Aug  5 09:24:18  avahi-daemon[7787]: last message repeated 29 times

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[Bug 1342400] Re: avahi-daemon constantly reporting Invalid response packet from host

[Chris Good]

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

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[Bug 1342400] Re: avahi-daemon constantly reporting Invalid response packet from host

[robert owings]

I see this error when I use my iPad TiVo app - the error comes
simultaneously from all TiVo devices on my lan.

The traffic appears to be private traffic between related devices that
do not follow the mdns spec - (Multicast DNS Responses MUST NOT contain
any questions in the Question Section. Any questions in the Question
Section of a received Multicast DNS  Response MUST be silently ignored.)

But to honor the spec Avahi should silently ignore the traffic.

IMHO, the error should not be logged.

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

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[Bug 1342400] Re: avahi-daemon constantly reporting Invalid response packet from host

[MG2R]

I get this error at the exact time my WiFi traffic freezes for a a while. Has 
anyone else noticed ths?
Machine: Dell Precision M3800
Wireless adapter: Intel Corporation Wireless 7260 [8086:08b1]

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

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[Bug 1342400] Re: avahi-daemon constantly reporting Invalid response packet from host

[sandshark]

I regularly lose my internet connection in the office (where there are
alot of OSX laptops) and every time I see the 'Invalid response from
host' message from various ip adresses (ipv4 and ipv6, usually ipv6
after a disconnect).

This is on a dell precision M3800 with Intel Corporation Wireless 7260.

Just not logging the error does not seem like a good solution to me, if
these are related.

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  avahi-daemon constantly reporting Invalid response packet from host

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[Bug 1342400] Re: avahi-daemon constantly reporting Invalid response packet from host

[Launchpad Bug Tracker]

Status changed to 'Confirmed' because the bug affects multiple users.

** Changed in: avahi (Ubuntu)
   Status: New = Confirmed

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  avahi-daemon constantly reporting Invalid response packet from host

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