I can reach both www.bing.com and www.microsoft.com, but the latter seems to be blocked by a firewall rule: ~$ ping6 www.bing.com PING www.bing.com(2001:50

I can reach both www.bing.com and www.microsoft.com, but the latter seems to be blocked by a firewall rule: ~$ ping6 www.bing.com PING www.bing.com(2001:5002:200:2::c30a:b58) 56 data bytes 64 bytes from 2001:5002:200:2::c30a:b58: icmp_seq=1 ttl=58 time=321 ms 64 bytes from 2001:5002:200:2::c30a:b58: icmp_seq=2 ttl=58 time=234 ms ~$ ping6 www.microsoft.com PING www.microsoft.com(2a01:111:2004:3::13) 56 data bytes From 2a01:111:0:2::52 icmp_seq=1 Destination unreachable: Administratively prohibited From 2a01:111:0:2::52 icmp_seq=4 Destination unreachable: Administratively prohibited I'm running a openvpn tunnel to a vps on a datacenter that provides me ipv6, so all my machines have a ipv6 address thanks to radvd.