Ubuntu version prior to Karmic Koala use tspc to create an IPv6 tunnel. In Karmic this has been replaced with gw6c, and the configuration file is similar but not exactly the same. For reference, here is my
/etc/gw6c/gw6c.conf which uses the Aarnet tunnel broker in Australia.
This is mostly the sample configuration file:
userid=dparrish passwd=******** server=broker.aarnet.net.au auth_method=any host_type=router if_tunnel_v6v4=sit1 if_tunnel_v6udpv4=tun0 if_tunnel_v4v6= prefixlen=64 if_prefix=eth0 auto_retry_connect=yes retry_delay=30 retry_delay_max=300 keepalive=yes keepalive_interval=30 tunnel_mode=v6anyv4 client_v4=auto client_v6=auto template=linux proxy_client=no broker_list=/var/lib/gw6c/tsp-broker-list.txt last_server=/var/lib/gw6c/tsp-last-server.txt always_use_same_server=no log_stderr=0 log_file=2 log_filename=/var/log/gw6c/gw6c.log log_rotation=yes log_rotation_size=32 log_rotation_delete=no syslog_facility=USER
After you have saved this file, run service
gw6c restart to start the daemon. You can then check for your new IPv6 address using
ip addr ls tun0.
If you want to enable firewalling on this tunnel (HIGHLY RECOMMENDED), you can use the following two files:
- linux.sh - Copy to /usr/share/gw6c/template/linux.sh and chmod 755
- firewall.sh - Copy to /etc/gw6c/firewall.sh and chmod 755
You should also edit firewall.sh to allow/disallow what you want. By default, this script allows ssh in to any machines behind your router, and any packets out from internal machines.
EDIT: If gw6c fails to start and doesn't give any useful information at all, try copying