[Xorp-hackers] MLD(v2) on Linux 2.6.26-rc7 kernel?

[Kevin Fall]

Hi folks.

I've just this past weekend spun up Xorp to experiment with MLDv2 and  
some other things.  After noticing the lack of v6 multicast routing in  
Linux 2.6.25.x kernels, I build a more bleeding edge 2.6.26 (rc7)  
kernel that has v6 multicast routing included-- or at least, says it  
does.

When I run Xorp 1.4 configured to do MLDv2 (on eth3), I see this:

[ 2008/06/23 09:01:20 TRACE xorp_mld MLD6IGMP ] TX MLD_LISTENER_QUERY  
from fe80::204:5aff:fe9f:9e80 to ff02::1
[ 2008/06/23 09:01:20  ERROR xorp_mld:21363 MLD6IGMP +1519  
xrl_mld6igmp_node.cc mfea_client_send_protocol_message_cb ] Cannot  
send a protocol message: 102 Command failed Cannot send MLD protocol  
message from fe80::204:5aff:fe9f:9e80 to ff02::1 on vif eth3:  
sendmsg(proto 58 size 28 from fe80::204:5aff:fe9f:9e80 to ff02::1 on  
vif eth3) failed: Invalid argument

So, before I spend hours digging to figure out just what this is, does  
somebody already have an idea?

thx!
- K