TCP & UDP Port 1900 Information

Port name:SSDP
Port 1900 common errors:There may be some instances wherein this port would register as being used by other applications. To learn more about errors in your system run a free registry scan.
Services or applications using this port:SSDP for UPnP (Universal Plug & Play) , Windows Alerter
Malicious services / applications:Remote Access Trojan

Port 1900 details:

Protocol: TCP & UDP
IAMA status: Conflict
Range: Registered
Traffic: inbound, outbound, both
Notification: True
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Technical description for port 1900:

The Microsoft SSDP service is officially registered with IANA as the protocol running on the network port 1900. This service is essentially associated with the automatic enabling of the discovery feature related with plug and play devices. This computer port is used to transmit data to identify the connection of UPnP capable devices to the system or network.
The SSDP (Simple Service Discovery Protocol) identified with the system port 1900 is basically an expired Internet draft undertaken by Hewlett-Packard and Microsoft Corporation. This discovery protocol provides for the mechanism that allows network clients to discover various available network services. The SSDP can be deployed with very little or no static configuration at all.
The SSDP service uses the port 1900 for the delivery of UDP multicast and unicast packets for the advertisement of its services.
The multicast address utilized by this protocol is supported by both the IPv4 and IPv6 technologies.
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