Tsp is a control protocol used to establish and maintain static tunnels. the gateway6 client (gogoc) is used on the host computer to connect to a tunnel broker using the tsp protocol and to get the information for its tunnel. when it receives the information for the tunnel, the gateway6 client creates the static tunnel on its operating system.

this package was previously called gw6c or tspc.

sipcalc is only required if you have multiple lan interfaces you need configuring