Comments on: CentOS Linux Avahi Error: avahi-daemon[2699]: Invalid query packet

By: Colin

Colin — Fri, 19 Apr 2013 01:38:22 +0000

Sep 13 10:10:27 cent2 avahi-daemon[2699]: Invalid query packet.

I am getting the same error.

Seems fine to disable such a service. It is apparently used to query Media servers and playstation3′s.

I.E. in a server, who cares.

By: alex

alex — Thu, 21 Apr 2011 20:50:06 +0000

Hello James,

Good deal. Thanks for posting this. I have to remember what server I manage I saw these messages on, double check that they are still occurring, and then install avahi-tools if so to see if that resolves the issue.

Definitely appreciate you taking the time to leave feedback.

Thanks.
alex

By: James D

James D — Tue, 19 Apr 2011 18:51:17 +0000

yum -y install avahi-tools

ps -aux | grep avahi

avahi-discover “process id number from command above”

look for the error, you might need to install missing packages like gtk*, etc…

By: alex

alex — Tue, 15 Mar 2011 06:56:33 +0000

Hello IchBin,

You might try investigating using something like wireshark to sniff the multicast/broadcast packets on the network to see what traffic is hitting the server at the same time that the log messages are generated.

I would be interested to hear what your findings are.

Thanks.
alex

By: IchBin

IchBin — Thu, 10 Mar 2011 19:39:10 +0000

Found you via google as I have the same problem running on CentOS 5.5. Avahi is up to date according to the package manager. Still getting Invalid Query packet all too often. It does not state a machine or IP that it is getting this issue from. The errors are just like yours that were posted above.

By: alex

alex — Wed, 16 Feb 2011 15:04:01 +0000

Hello PK Seet,

Those log messages are valid and indicate that your host ww.xx.yy.zz is sending some form of invalid packets to the devhost server. It does not represent a problem on the localhost but on the device sending the invalid packets.

Thanks.
alex

By: PK Seet

PK Seet — Wed, 16 Feb 2011 05:43:34 +0000

Hi Alex,

I have updated avahi to avahi-0.6.16-9.el5_5.i386 on my Centos 5.5 machine. I still see a bunch of messages created almost every minute in /var/log/messages that goes:

Feb 16 13:27:41 devhost avahi-daemon[3879]: Invalid legacy unicast query packet.
Feb 16 13:27:41 devhost message repeated 2 times
Feb 16 13:27:42 devhost avahi-daemon[3879]: Received response from host ww.xx.yy.zz with invalid source port 7995 on interface ‘xenbr0.0′

Please advise if this is an issue and how to resolve this.

Thanks.