What/who uses UDP port 5353

Hi,
Looking at my syslog, I noticed that during boot (only), my Mandriva
2006+Shorewall firewall PC tries 3 times (few seconds apart) to establish
above connection which was declined by the firewall.

The respective syslog entry is:
Apr 19 06:05:10 Atlantis kernel: Shorewall:net2allROP:IN=eth0 OUT= MAC=
SRC=10.0.0.1 DST=224.0.0.251 LEN=105 TOS=0x00 PREC=0x00 TTL=255 ID=8 DF
PROTO=UDP SPT=5353 DPT=5353 LEN=85


/eyc/service didn't show any usage for that port.
I tried to ping 224.0.0.251 but didn't get a response.

Has anybody a clue what's going on?

TIA

Michael Badt

Il Wed, 19 Apr 2006 12:49:09 +0300, Michael Badt ha scritto:

> The respective syslog entry is:
> Apr 19 06:05:10 Atlantis kernel: Shorewall:net2allROP:IN=eth0 OUT= MAC=
> SRC=10.0.0.1 DST=224.0.0.251 LEN=105 TOS=0x00 PREC=0x00 TTL=255 ID=8 DF
> PROTO=UDP SPT=5353 DPT=5353 LEN=85

Multicast DNS


--
Stefano
http://www.stefanocislaghi.it/

On Wed, 19 Apr 2006 12:49:09 +0300, Michael Badt <(E-Mail Removed)>
wrote:

>Hi,
>Looking at my syslog, I noticed that during boot (only), my Mandriva
>2006+Shorewall firewall PC tries 3 times (few seconds apart) to establish
>above connection which was declined by the firewall.
>
>The respective syslog entry is:
>Apr 19 06:05:10 Atlantis kernel: Shorewall:net2allROP:IN=eth0 OUT= MAC=
>SRC=10.0.0.1 DST=224.0.0.251 LEN=105 TOS=0x00 PREC=0x00 TTL=255 ID=8 DF
>PROTO=UDP SPT=5353 DPT=5353 LEN=85
>
>
>/eyc/service didn't show any usage for that port.
>I tried to ping 224.0.0.251 but didn't get a response.
>
>Has anybody a clue what's going on?
>
>TIA
>
>Michael Badt


Multicast DNS

See http://www.iana.org/assignments/port-numbers
--
Benway

Thanks all !

Michael Badt


Ste wrote:

> Il Wed, 19 Apr 2006 12:49:09 +0300, Michael Badt ha scritto:
>
>> The respective syslog entry is:
>> Apr 19 06:05:10 Atlantis kernel: Shorewall:net2allROP:IN=eth0 OUT= MAC=
>> SRC=10.0.0.1 DST=224.0.0.251 LEN=105 TOS=0x00 PREC=0x00 TTL=255 ID=8 DF
>> PROTO=UDP SPT=5353 DPT=5353 LEN=85
>
> Multicast DNS
>
>