1 AICCU (Automatic IPv6 Connectivity Client Utility) makes it easy for users to
2 get IPv6 connectivity via SixXs. After having requested an account, tunnel and
3 optionally a subnet, AICCU can be used to automatically configure the tunnel.
4 AICCU supports TIC (Tunnel Information & Control protocol), which it uses for
5 retrieving the tunnel configuration information, AYIYA, which allows tunnels to
6 be created even behind firewalls and NATs.