Tunnel Broker

In networking environment terminology, the tunnel broker is an impression to explain a service that provides a network tunnel. This tunnel broker model depends upon exclusive servers that are known as Tunnel Brokers and control the tunnel requests automatically.
This phrase is commonly used to refer Ipv6. Here a tunnel broker provides Ipv6 tunnels to the Websites and the users as too.
The NWG (Network Working Group) explains Ipv6 Tunnel Broker in RFC 3053. The tunnels are thought hard to configure and maintain. These are much complex for the isolated users. Thus the idea of the tunnel broker was introduced to help early Ipv6 adopter to link up to an existing Ipv6 network platform.