What is SSDP m search?

Summary. SSDP (Simple Service Discovery Protocol) – commonly known as Universal Plug and Play (UPnP) – allows devices to discover their neighbors, either through network service discovery (Search) or network service broadcasting (Notify).

What does M Search mean?

Simple Service Discovery Protocol
SSDP (Simple Service Discovery Protocol) is a simple protocol designed to solve the problem of service discovery over a local network. The technology uses text-based HTTP messages over UDP (aka HTTPU) on the well-known port 1900. A client wishing to query for available services will issue a M- SEARCH command via HTTPU.

What is SSDP and UPnP?

A Simple Service Discovery Protocol (SSDP) attack is a reflection-based distributed denial-of-service (DDoS) attack that exploits Universal Plug and Play (UPnP) networking protocols in order to send an amplified amount of traffic to a targeted victim, overwhelming the target’s infrastructure and taking their web …

What does SSDP stand for in M-search?

The message type ( MAN ), for an M-Search this is always ssdp:discover. The search target ( ST) of the service the search request is attempting to discover. The maximum wait response time ( MX) in seconds that a root device can take before responding. The MX field is an attempt to overcome a scaling issue implicit with SSDP.

What should the MX value be for SSDP?

The MX value should be between 1 and 5. Even with the MX workaround, SSDP is recommended only to be used in home or small office networks. A root device should only respond with services that match the search target field of the the request e.g.

What kind of Adress is used in SSDP?

SSDP uses unicast and multicast adress (239.255.255.250). SSDP is HTTP like protocol and work with NOTIFY and M-SEARCH methods. SSDP can be used over IPv4 and IPv6. SSDP uses UDP transport protocol on port 1900 The SSDP dissector is based on the HTTP one. Since Wireshark 2.2, one can use the ssdp display filter.

What does SSDP stand for in UPnP spec?

A service that is defined by the UPnP spec and allows for zero-configuration network discovery. SSDP was designed from the ground up to easily add and remove nodes from a network without involvement from a central service such as DNS or by assigning static IP addresses to specific nodes.