What to do:

- Check your user home for the tunnel.

- Configure the IPv6 in IPv4 tunnel as normal.

- Download the Heartbeat Client from:
  http://www.sixxs.net/archive/sixxs/heartbeat/heartbeat-client-current.tgz

- Untar it in a convienient place.

- use GNU make in the 'client' dir.

- put the binary in a nice place along with the config.

- Configure heartbeat.conf

  Change the settings of ipv4_interface, os, ipv4_pop,
  ipv6_pop, ipv6_local and ipv6_prefixlen based on the values
  shown on the tunnelpage. There are also some optional
  settings if you have your endpoint behind a NAT etc.

  Set hb_password to the password supplied to you this
  password will be changable after the ending of the beta.

  Alternatively fetch a preconfigured config from your
  tunnel information page in your user home on the website.

- Enable the tunnel on your machine.

- Run the Heartbeat Client as root (required for reconfiguration
  of the tunnel and for the SO_BINDTODEVICE call):

  ./heartbeat-client ./heartbeat.conf

  Make sure you have the iproute package installed btw
  as that is used for moving the tunnel on your local end.

  As soon as you start the client it will start sending
  the heartbeat packet on to port 3740/udp of the pop and
  the tunnel should go live. IP changes are detected per
  heartbeat which happens every 60 seconds.

If there any problems don't hesitate to contact info@sixxs.net
please include as much information as you have on the problem
and your configuration settings.