Discussion:
What/who uses UDP port 5353
(too old to reply)
Michael Badt
2006-04-19 09:49:09 UTC
Permalink
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:net2all:DROP: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
Ste
2006-04-19 11:20:08 UTC
Permalink
Post by Michael Badt
Apr 19 06:05:10 Atlantis kernel: Shorewall:net2all:DROP: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/
Michael Badt
2006-04-19 14:07:00 UTC
Permalink
Thanks all !

Michael Badt
Post by Ste
Post by Michael Badt
Apr 19 06:05:10 Atlantis kernel: Shorewall:net2all:DROP: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
b***@anotherbloodyspam.domain
2006-04-19 11:52:36 UTC
Permalink
Post by Michael Badt
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.
Apr 19 06:05:10 Atlantis kernel: Shorewall:net2all:DROP: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
Loading...