Hi. My tunnel T11085 to deham01 - Easynet ceased to work between today 01:00 (CEST) and now. Aiccu seems to work, though Oct 22 18:52:06 grml aiccu: Succesfully retrieved tunnel information for T11085 Oct 22 18:52:06 grml kernel: [1917045.931121] sixxs: Disabled Privacy Extensions Oct 22 18:52:06 grml aiccu: AICCU running as PID 3268 and the sixxs tunnel interface is being created root@grml ~ # ip addr show dev sixxs 36: sixxs@NONE: <POINTOPOINT,NOARP,UP,LOWER_UP> mtu 1280 qdisc noqueue state UNKNOWN link/sit 217.229.189.107 peer 212.224.0.188 inet6 2001:6f8:900:849::2/64 scope global valid_lft forever preferred_lft forever inet6 fe80::d9e5:bd6b/64 scope link valid_lft forever preferred_lft forever inet6 fe80::c0a8:11d/64 scope link valid_lft forever preferred_lft forever inet6 fe80::c0a8:131/64 scope link valid_lft forever preferred_lft forever This dump shows the traffic on my physical interface (IPv6 in IPv4 in PPPoE) which confirms that no firewall is prohibiting traffic going out (or in): 18:52:53.104371 PPPoE [ses 0x87e] IP 217.229.189.107 > 212.224.0.188: IP6 2001:6f8:900:849::2 > 2001:6f8:900:849::1: ICMP6, echo request, seq 18, length 64 There are no replies being received by my machine. I can ping the IPv4 address of the tunnel endpoint. grml@grml ~ % ping 212.224.0.188 PING 212.224.0.188 (212.224.0.188) 56(84) bytes of data. 64 bytes from 212.224.0.188: icmp_seq=1 ttl=57 time=69.7 ms 64 bytes from 212.224.0.188: icmp_seq=2 ttl=57 time=68.5 ms Greetings from Bavaria, Chris