Internet Gateway Device Protocol

Internet Gateway Device (IGD) Standardized Device Control Protocol is supported by some NAT routers. It is a common method of automatically configuring port forwarding, but is not an Internet Engineering Task Force document.

Applications using peer-to-peer networks, multi-player gaming, and remote assistance programs need a way to communicate through home and business gateways. Without IGD one has to manually configure the gateway to allow traffic through, a process which is time consuming and can be difficult. Universal Plug and Play (UPnP) comes with a solution for network address translation traversal.

IGD makes it easy to do the following:

  • Learn the public (external) IP address
  • Enumerate existing port mappings
  • Add and remove port mappings
  • Assign lease times to mappings

See also

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