Simple Service Discovery Protocol daemon (SSDP) for networked Linux and UNIX devices. Useful in any setup, big or small, but targeted more at embedded systems that need to announce themselves to Windows systems.

ssdpd is a stand-alone UNIX daemon with no external dependencies but the standard C library. It has a built-in web server for serving the UPnP XML description which Windows use to present the icon, by default an InternetGatewayDevice is announced.

Also included is the ssdp-scan tool, which continuously scans for SSDP capable hosts on the network. Take care only to use this for debugging since it scans the network quite aggressively.

Usage: ssdpd [-hnsv] [-i SEC] [-l LEVEL] [-r SEC] [-t TTL] [IFACE [IFACE ...]]

    -h        This help text
    -i SEC    SSDP notify interval (30-900), default 300 sec
    -l LVL    Set log level: none, err, notice (default), info, debug
    -n        Run in foreground, do not daemonize by default
    -r SEC    Interface refresh interval (5-1800), default 600 sec
    -s        Use syslog, default unless running in foreground, -n
    -t TTL    TTL for multicast frames, default 2, according to the UDA
    -v        Show program version

Bug report address : https://github.com/troglobit/ssdp-responder/issues
Project homepage   : https://github.com/troglobit/ssdp-responder

See configure --help for some build time options.

Note: previous releases did not daemonize, you will have to update your start scripts to include -n as of v1.6

The following example assumes the system eth0 interface is connected to an ISP and eth1 to the LAN. Every 300 sec the list of addresses for eth1 are updated, if a new address is added a NOTIFY * message is sent, otherwise NOTIFY * messages are sent every 30 seconds.

ssdpd -i 30 -r 300 eth1

Cloned from mrdisc and whacked at with a bat until it replies to SSDP "MSEARCH *" messages used by Windows.