L.S., I am having some problems with T7076. The linux router I used for this tunnel refuses to run for more than a few hours before crashing. I decided to move the tunnel to a different FreeBSD host. I have followed the steps at https://www.sixxs.net/faq/connectivity/?faq=ossetup&os=freebsd to the letter but it won't give me any ipv6 traffic. I have also tried letting it run for some time hoping it would pick up again. The first time I configured the tunnel on the FreeBSD system it did work, but after a reboot it started completely refusing. I have also rebooted the IPv4 NAT router that's sitting in between a few times, but no luck. Is there any hint you can give me where the problem could be coming from? Some info: gif0: flags=8051<UP,POINTOPOINT,RUNNING,MULTICAST> metric 0 mtu 1280 tunnel inet 0.0.0.0 --> 192.87.102.107 inet6 2001:610:600:18c::2 --> 2001:610:600:18c::1 prefixlen 128 inet6 fe80::203:ffff:fe46:6c03%gif0 prefixlen 64 scopeid 0x4 yes, I have also tried setting the local endpoint of the tunnel to my public IP, but that didn't work either. Destination Gateway Flags Netif Expire ::/96 ::1 UGRS lo0 ::1 ::1 UHL lo0 ::ffff:0.0.0.0/96 ::1 UGRS lo0 2001:610:600:18c::1 link#4 UHL gif0 2001:610:600:18c::2 link#4 UHL lo0 fe80::/10 ::1 UGRS lo0 fe80::%de0/64 link#1 UC de0 fe80::203:ffff:fe46:6c03%de0 00:03:ff:46:6c:03 UHL lo0 fe80::%lo0/64 fe80::1%lo0 U lo0 fe80::1%lo0 link#3 UHL lo0 fe80::%gif0/64 link#4 UC gif0 fe80::203:ffff:fe46:6c03%gif0 link#4 UHL lo0 ff01:1::/32 link#1 UC de0 ff01:3::/32 ::1 UC lo0 ff01:4::/32 link#4 UC gif0 ff02::/16 ::1 UGRS lo0 ff02::%de0/32 link#1 UC de0 ff02::%lo0/32 ::1 UC lo0 ff02::%gif0/32 link#4 UC gif0 Kind regards, Paul Koene