I wrongly asked for aiccu tunnel (didn't click on button in web interface) for T68281. I changed this to static, giving the IP address. I'm wondering what the latency for these kind of changes is. My config, which I'm pretty sure is correct. I can ping 216.93.250.26. pink-[~] mcr 1015 %ping6 2001:4830:1100:154::1 PING 2001:4830:1100:154::1(2001:4830:1100:154::1) 56 data bytes (running all morning) from /etc/network/interfaces auto usbos01 iface usbos01 inet6 v4tunnel pre-up modprobe ipv6 address 2001:4830:1100:154::2 netmask 64 local 132.213.238.7 endpoint 216.93.250.26 ttl 64 up ip link set mtu 1280 dev usbos01 up ip route add default via 2001:4830:1100:154::1 dev usbos01 pink-[~] mcr 1016 %ip tunnel show usbos01: ipv6/ip remote 216.93.250.26 local 132.213.238.7 ttl 64 pink-[~] mcr 1017 %ifconfig usbos01 usbos01 Link encap:IPv6-in-IPv4 inet6 addr: 2001:4830:1100:154::2/64 Scope:Global inet6 addr: fe80::84d5:ee07/128 Scope:Link UP POINTOPOINT RUNNING NOARP MTU:1280 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:38379 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:0 (0.0 B) TX bytes:4748703 (4.5 MiB)