UDP thrashing 224.0.0.54 140 times a second

peterlowrie · 01-12-2010, 04:12 AM

Good evening

My ADSL router NAT's any computer behind it here at home. I have a PC or two a Sun ultra10 and ultra5 and E450 etc.

The problem is my PC reports via "tcpdump -i eth0" that

22:54:47.035683 IP icute.pelnet.net.50683 > 224.0.0.56.46144: UDP, length 1292

is going on 140 times every second.

How do I prevent this from continuing and why is it happening?

If possible I don't want to invoke iptables as my NAT router does a fine firewalling job.

Thank you.
Peter.

nimnull22 · 01-12-2010, 12:24 PM

It is multicast flow like IPTV.
You can try to look on your router something about multicast and disable it.
But may be someone in your network is watching IPTV or any other steam medias?

peterlowrie · 01-17-2010, 03:08 AM

Paul suggested looking at this:

Refer to http://www.mail-archive.com/ubuntu-b...sg1623313.html

Then I tried to remove pulseaudio from the system, trouble is that doing this takes out the whole system.

Every time you boot pulseaudio starts so short of 'pkill -15 pulseaudio' everytime you start the computer I found simply turning off all the network configurations in 'pulseaudio preferences' dit it and it stops thrashing the LAN.

Problem fixed.

:-) Peter