Hi, I'm trying to set up IPv6 multicast on my LAN router. This is a standard x86 box running Ubuntu Server 8.10, the Shorewall firewall, Aiccu, and Radvd. First off, my normal IPv6 connection (subnet R4956 via tunnel T11589 to iedub01) is working fine -- I can connect to IPv6 sites, ping, see the dancing kame, and so forth. I've installed ecmh and dbeacon, but dbeacon is listing my server under "Beacons with no connectivity" on the matrix. I've done some tracing with tcpdump, and found that the dbeacon reports are being sent out of 'eth0'. For instance, calling dbeacon like this: (...snip...) gets me this tcpdump output on eth0: (...snip...) Marc Manthey's post in https://www.sixxs.net/forum/?msg=setup-691237 on on Sunday, 23 March 2008 21:48:39 suggests that if the report packets aren't being sent to the PoP, then multicast won't work. I've tried adding an IP route to force the packets to be sent out through the 'sixxs' interface: but this had no effect -- the packets are still being sent out of eth0. This is my dbeacon.conf file: (which is a modified version of the example on the SixXS website -- note that the email address is valid in the config file, but I've blanked it in this forum post) Can someone please tell me what I'm doing wrong here? Why are the multicast reports going out of eth0 instead of sixxs, even though I have a route that should be forcing them to be sent down the tunnel? Thanks, Phil.