On Sat, 8 Jun 2013, Doug Porter wrote: > We're actively investigating the v6 issues. We need more data > though. If you're experiencing problems, please email me a > tcpdump/pcap or any other debug data you think will help. I'll see what I can grab. I've noticed the issue intermittently both at home (HE IPv6 tunnel over VZ Fios) and at work (dual-stacked .edu). jms