How to prevent my computer from sending multicast requests

Question

I've installed Ubuntu 12.04 and shortly noticed that my internet port has been blocked by internet provider. I contacted technical support and get reported that my computer was sending too many multicast requests. And their automated system blocked my port.

I've disabled avahi-daemon on my computer:

executed the command:

gksu gedit /etc/default/avahi-daemon

and then set the parameter:

AVAHI_DAEMON_DETECT_LOCAL=0

and saved the file.

After that I disabled MULTICAST on my network card:

sudo ifconfig eth0 -multicast

My question: Are those measures enough or I need to do additional steps to prevent my computer from sending multicast requests?

score 1 · Accepted Answer · edited Apr 13 '17 at 12:23

1

While your method may work, these steps will certainly disable multicast:

You can try to edit the Init file for the Avahi daemon to just block it from even starting up.

Steps:

Open /etc/init/avahi-daemon.conf in your favorite text editor as root.
Find the line with start on (filesystem and started dbus).
Replace that line with start on (never and filesystem and started dbus).
If there is not a stop line, skip to step 6.
Replace the stop line with stop on stopping dbus.
(Only do this step if you didn't do 5) Add stop on stopping dbus to the end of the file
Reboot

(Src)

edited Apr 13 '17 at 12:23

Community

1

answered Sep 01 '14 at 07:37

Kaz Wolfe

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setting AVAHI_DAEMON_DETECT_LOCAL=0 is not enough? Am I right ? – Sep 01 '14 at 07:41
I don't think so. That appears to only disable local daemon detection. I don't really know though. I never paid too much attention to Avahi. – Kaz Wolfe Sep 01 '14 at 07:42
no prob! Glad I could help. – Kaz Wolfe Sep 01 '14 at 07:47

How to prevent my computer from sending multicast requests

1 Answers1