I'm trying to complete the cert from http://ipv6.he.net/certification/ but run into problems. The next step is to connect to the website with an ipv6 addy. I'm using ubuntu server in a vbox that is bridged to my ethernet. Qwest is my ISP Used the conf given on the website Allowing protocol 41 on the server iptables -t filter -I INPUT -p 41 -j ACCEPT iptables -t filter -I OUTPUT -p 41 -j ACCEPT try to portscan / ping from outside the network and get no response, ping6 ipv6.google.com resloves to ipv4???? on my freebsd box ping6 resloves to the correct ipv6 addy root at frogger:~# ping6 ipv6.google.com PING ipv6.google.com(iw-in-x93.1e100.net) 56 data bytes and from the outside ~ ping6 2001:470:1f10:b8f::2 PING6(56=40+8+8 bytes) 2a01:270:0:ffff:ffff:2050:0:2 --> 2001:470:1f10:b8f::2 ^C I can ping / traceroute my ipv4 addy from outside just fine. Must be a protocol 41 / nat problem??