I have a similar setting as Jamie, VZ Fios plus HE tunnel, except I am running a FreeBSD VM to terminate tunnel and to run rtadvd. everything works nicely, so I thought I could do some tests on IPv6 connectivity and speed to China. There is a single-stack IPv6 website (bt.neu6.edu.cn) hosted by a chinese university providing torrents files. It is a single-stack because most chinese universities do not need pay for v6 traffic at this moment. I have no problem to open the website through v6 and i started a utorrent downloading with about 29 v6 peers and 5 v4 peers. my peak download speed reached 22Mbps... Best, Leon On Wed, Jun 8, 2011 at 7:40 AM, Jamie Bowden <jamie@photon.com> wrote:

Thanks to HE's tunnel broker service, I've got fully functional dual stack at home (well, mostly, like most folks, VZ gives me a single address and I live behind that with NATv4, but otherwise, I loves me some FiOS) and yesterday went by for me without a hitch, including accessing Facebook (I'd hear from the wife and kid really quickly if they weren't working).  For a working tunnel, I put my DIR-825 as the "DMZ" host behind the cheesy Actiontec router VZ requires, forward all traffic with zero firewalling to it, and let the D-Link appliance handle all my firewall needs (and it terminates my v6 tunnel obviously).  The one thing I haven't quite figured out how to make it do (and maybe it's just not capable) is use the /48 HE routes to me.  The box insists that the internal interface be on the same subnet as the external, and it hands out v6 addresses from that /64.

Jamie