ssdp-scan —
Scan for SSDP capable devices on attached
networks
ssdp-scan |
[ -h
]
[-l
LEVEL
]
[-t
SEC
] |
ssdp-scan is a tool for scanning for Simple
Service Discovery Protocol (SSDP) capable devices on attached networks. It
sends
M-SEARCH * to
239.255.255.250 to continuously update a
list of SSDP hosts.
The following command line options are available:
-h- Show program help text.
-l
LEVEL- Set log level to one of the following, default
notice:
none- Disable all logging
error- Error conditions
warning- Warning conditions
notice- Normal but significant condition (default)
info- Informational
debug- Debug-level messages
Timeout and exit after SEC seconds.
- [
IFACE
]
- By default
ssdp-scan runs on all IPv4
capable interfaces, except loopback. If interface names are given as
arguments, ssdp-scan will run only on
them.
ssdp-scan is very impatient. In order to scan
for hosts it sends
M-SEARCH * messages
every other second, which can result in lots of replies, which in turn causes
ssdp-scan to retrieve XML files from each
replying host. Be careful.
Unless started with the
-t
SEC option,
ssdp-scan does not terminate on its own.
Instead, it scans continuously until the user stops it by pressing Ctrl-C.
ssdp-scan does not rely on a local SSDP
responder. It has no dependencies besides a standard UNIX libc.
ssdpd(8)
ssdp-scan was written by
Joachim Wiberg
⟨troglobit@gmail.com⟩ to test
ssdpd in complex network topologies. It is
modeled on
mdns-scan(1).