Comment 3 for bug 761469

I am not using IPv6 in my test environment, so I cannot confirm nor deny. The network goes haywire very rapidly if one does this experiment without the ebtables rule above, leading one to rip cables out of walls as fast as one can.

It is a great DoS attack on the victim LAN that you bridge into such an mcast tunnel, as it reflects all broadcast traffic such as mDNS and probably confuses hardware switches as well as the Linux software bridge. As such, I won't be performing more detailed tests of this failure mode in my environment!