Describe two automatic configuration protocols used by many tunnel brokers.

What will be an ideal response?

Many tunnel brokers take advantage of one of two automatic configuration protocols, called Tunnel Setup Protocol (TSP) and Tunnel Information and Control (TIC) protocol. These protocols set up the tunnel and handle configuration as well as login. If it wasn't for TSP and TIC, there would be no such thing as automatic third-party tunnel endpoint clients for you to use.