The Simple Service Discovery Protocol (SSDP) is used to detect Universal Plug and Play (UPnP) devices on a network.

SSDP is maintained by the Internet Engineering Task Force (IETF). For more information about this protocol, see Simple Service Discovery Protocol/1.0 Operating without an Arbiter. For information about UPnP, see Universal Plug and Play (UPnP) Overview on Microsoft Developer Network (MSDN).

Microsoft Extensions

Microsoft implementations of this protocol differ from the standard in one way. Instead of sending search messages to the 239.255.255.250 multicast address on a network, search messages can be unicast to the TCP/IP gateway directly.

Remarks

For Microsoft licensing information, see Published Protocols and Royalty-Free License on Microsoft Developer Network (MSDN).

Requirements