Hi! I'm having a problem with aiccu and my tunnel. My Linux box is behind nat (runs Fedora Core 4). The router is Alink RoadRunner 44E. I can ping both end points but after some time my tunnel seems to go down. This can be seen from the statistics of my tunnel in my sixxs home page: After I ping6 for a while the end points of the tunnel it goes up (lost:0%) but after some hours it down again (lost: 100%). Any ideas why? My ping to the POP is about 10ms. ifconfig: eth0 Link encap:Ethernet HWaddr 00:50:DA:CA:5A:9B inet addr:10.0.0.5 Bcast:10.0.1.255 Mask:255.255.254.0 inet6 addr: fe80::250:daff:feca:5a9b/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:71756821 errors:0 dropped:0 overruns:0 frame:0 TX packets:72340089 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:16248948 (15.4 MiB) TX bytes:994943514 (948.8 MiB) Interrupt:11 Base address:0xec00 lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:133378253 errors:0 dropped:0 overruns:0 frame:0 TX packets:133378253 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:3560860245 (3.3 GiB) TX bytes:3560860245 (3.3 GiB) sixxs Link encap:IPv6-in-IPv4 inet6 addr: 2001:14b8:100:156::2/64 Scope:Global inet6 addr: fe80::a00:5/64 Scope:Link UP POINTOPOINT RUNNING NOARP MTU:1280 Metric:1 RX packets:12021 errors:0 dropped:0 overruns:0 frame:0 TX packets:12525 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:1520193 (1.4 MiB) TX bytes:1501369 (1.4 MiB) What did I do wrong??? Regards, Joonas Ahonen