(usagi-users 02904) IPv6 Multicast on recent Linux Kernels

[Nicholas Humfrey <njh@xxxxxxxxxxxxxxx>]

Hi,


I have been having problems getting IPv6 multicast to work on recent 
Linux kernels - I can't get it to work on anything newer than 2.4.18 
(ish). The most recent I have tried is 2.6.4.

The symptoms are that it is unable to join Multicast groups, however 
if there is another machine on the subnet, already a member of the 
group, then it picks up the packets ok. Linux will also will remain a 
member of the multicast group, even with the other machine leaves.


I have checked the 2.6.4 kernel sources and the patch for the 
MLDv1/MLDv2 problem seem to be applied ok. So it looks like this is a 
different problem ?



Our multicast routers are running a mixture of FreeBSD 4 and 5.1, 
with pim6sd version 2.1.0-alpha23.


Cheers,

nick.