hi, I've managed to setup my tunnel, but the pings from the pop only work when I'm actually transferring data over the tunnel. This is a screenshot from the relevant tunnel statistics: http://213.10.88.36/screenshots/sixxs.png On monday I've set up an irc-client to just idle somewhere. It worked and the pop could ping me fine again, until the end of the day it stopped pinging again for some strange reason... My routing table: # ip -6 route 2001:838:300:65::/64 via :: dev sixxs metric 256 mtu 1280 advmss 1220 2001:838:334::/48 dev eth0 metric 1024 mtu 1500 advmss 1440 fe80::/64 dev eth0 metric 256 mtu 1500 advmss 1220 fe80::/64 via :: dev sixxs metric 256 mtu 1280 advmss 1220 ff00::/8 dev eth0 metric 256 mtu 1500 advmss 1220 ff00::/8 dev sixxs metric 256 mtu 1280 advmss 1220 default via 2001:838:300:65::1 dev sixxs metric 1024 mtu 1280 advmss 1220 unreachable default dev lo proto none metric -1 error -101 advmss 1220 Interface: # ifconfig sixxs sixxs Link encap:IPv6-in-IPv4 inet6 addr: fe80::d50a:5824/128 Scope:Link inet6 addr: 2001:838:300:65::2/64 Scope:Global UP POINTOPOINT RUNNING NOARP MTU:1280 Metric:1 RX packets:19328 errors:0 dropped:0 overruns:0 frame:0 TX packets:13263 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:17802233 (16.9 Mb) TX bytes:1283713 (1.2 Mb) Thanks in advantage