Hello i am not able to get the tunnel up and running, so i hope you will help me. First of all i use Gentoo linux with kernel 2.6.8-rc2-love2. My Router (Longshine LCS-883R-DSL-4F) has the ipv4 ip 192.168.1.1 My Linuxbox has 192.168.1.2. When i boot up my system i have the following settings enabled: eth0 Link encap:Ethernet HWaddr 00:E0:7D:D1:49:86 inet addr:192.168.1.2 Bcast:192.168.1.255 Mask:255.255.255.0 inet6 addr: fe80::2e0:7dff:fed1:4986/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:901 errors:0 dropped:0 overruns:0 frame:0 TX packets:741 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:549068 (536.1 Kb) TX bytes:59685 (58.2 Kb) Interrupt:11 Base address:0x4000 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:2 errors:0 dropped:0 overruns:0 frame:0 TX packets:2 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:100 (100.0 b) TX bytes:100 (100.0 b) ip ro sho /home/obi 192.168.1.0/24 dev eth0 proto kernel scope link src 192.168.1.2 127.0.0.0/8 via 127.0.0.1 dev lo scope link default via 192.168.1.1 dev eth0 ip -6 ro sho /home/obi fe80::/64 dev eth0 metric 256 mtu 1500 advmss 1440 metric10 64 ff00::/8 dev eth0 metric 256 mtu 1500 advmss 1440 metric10 1 default dev eth0 proto kernel metric 256 mtu 1500 advmss 1440 metric10 64 unreachable default dev lo proto none metric -1 error -101 metric10 255 so lets go on with the script to setup the sixxs device: #!/bin/sh ip tunnel add sixxs mode sit local 192.168.1.2 remote 212.224.0.188 ip link set sixxs up ip link set mtu 1280 dev sixxs ip tunnel change sixxs ttl 64 ip -6 addr add 2001:6f8:900:2da::2/64 dev sixxs ip -6 ro add default via 2001:6f8:900:2da::1 dev sixxs My heartbeatconfig: os "linux" ipv4_interface "eth0" hb_behindnat 1 ipv4_local_resolve obi.homelinux.org // (I have configured dyndns.org on my router to get a static hostname) ipv6_interface "sixxs" ipv6_pop "2001:6f8:900:2da::1" ipv6_local "2001:6f8:900:2da::2" ipv6_prefixlen 64 hb_password "********" hb_sendinterval 60 hb_timeout 300 daemonize 0 After i executed my script i get this: ip -6 ro sho /home/obi 2001:6f8:900:2da::/64 via :: dev sixxs metric 256 mtu 1280 advmss 1220 metric10 64 fe80::/64 dev eth0 metric 256 mtu 1500 advmss 1220 metric10 64 fe80::/64 via :: dev sixxs metric 256 mtu 1280 advmss 1220 metric10 64 ff00::/8 dev eth0 metric 256 mtu 1500 advmss 1220 metric10 1 ff00::/8 dev sixxs metric 256 mtu 1280 advmss 1220 metric10 1 default dev eth0 proto kernel metric 256 mtu 1500 advmss 1220 metric10 64 default via 2001:6f8:900:2da::1 dev sixxs metric 1024 mtu 1280 advmss 1220 metric10 64 unreachable default dev lo proto none metric -1 error -101 advmss 1220 metric10 255 and this: eth0 Link encap:Ethernet HWaddr 00:E0:7D:D1:49:86 inet addr:192.168.1.2 Bcast:192.168.1.255 Mask:255.255.255.0 inet6 addr: fe80::2e0:7dff:fed1:4986/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:10082 errors:0 dropped:0 overruns:0 frame:0 TX packets:7077 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:10240148 (9.7 Mb) TX bytes:551333 (538.4 Kb) Interrupt:11 Base address:0x4000 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:18 errors:0 dropped:0 overruns:0 frame:0 TX packets:18 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:2148 (2.0 Kb) TX bytes:2148 (2.0 Kb) sixxs Link encap:IPv6-in-IPv4 inet6 addr: 2001:6f8:900:2da::2/64 Scope:Global inet6 addr: fe80::c0a8:102/128 Scope:Link UP POINTOPOINT RUNNING NOARP MTU:1280 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:0 (0.0 b) TX bytes:0 (0.0 b) Now I execute my heartbeatclient: # heartbeat-client.sh IP address change to 62.109.117.8 detected, reconfiguring [HB] HEARTBEAT TUNNEL 2001:6f8:900:2da::2 sender 1090419318 df22aed0a6feb83d99d2e6fe91244c2c To test the tunnel i did: ping6 www.kame.net but I got From ip6-localhost icmp_seq=1 Destination unreachable: Address unreachable. so i tested to ping my sixxs pop then i got this: From ::1 icmp_seq=1 Destination unreachable: Address unreachable I hope you can help me with this, because i have no idea what i shall do now. regards Jan Sauerbier