AD HTTPAPI httpd 2.0 (SSDP,UPNP) (5357)

This port is used my MS HTTPAPI 2 to offer the following network services:

SSDP (Simple Service Directory Protocol)

• Used for the discovery of devices and services on a local network. For example, allowing devices like printers, cameras or smart TVs to be discovered by a Windows PC. This is part of the UPnP protocol suite.

UPnP (Universal Plug and Play)

• A set of networking protocols that allow devices like routers, printers and other networked devices to auto-discover and configure eachother without needing manual configuration