[LUAU] ubuntu with python can't see multicast traffic

[Julian Yap]

Maybe the required Python libraries aren't installed on your Ubuntu 11.x machine?

If it's a small script then try running all the module imports manually at the CLI to see if one fails.

- Julian



----- Original Message -----
From: Brian Chee <chee at hawaii.edu>
To: LUAU at lists.freesoftwarehawaii.org
Cc: 
Sent: Wednesday, May 18, 2011 2:17 PM
Subject: [LUAU] ubuntu with python can't see multicast traffic

So does anyone know of some sort of magic config item for ubuntu that will
allow a python app to be able to receive mulitcast traffic? Using tcpdump I
can see the IGMP joins and when I use tcpdump using this:

tcpdump ip multicast and not broadcast


I can see the igmp joins in wireshark and then after the briefest of
pauses, the multicast starts up...I'm interested in 225.0.10.13 but
this tcpdump syntax also brings up the other multicast from windows,
etc...


I've also started barking up the apparmor tree, and have gone as far
as building a profile for it...but still not getting the multicast to
the python app, whereas another machine (ubuntu 10.x as opposed to
ubuntu 11.x on this machine) and the multicast data populates the
python app just fine.


/brian chee
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