Port 391

Modified by:

Port 391 is used for SynOptics SNMP Relay Port, which is used by the Synoptics Device Management System to receive SNMP messages from other network devices and forward them to the appropriate destination.

Ports those registered with IANA are shown as official ports. The same port number may be unofficialy used by various services or applications. The official usage are listed separately below its usage may change from time to time.

Official

Port
Protocol (TCP/UDP)
Title
Description
Port Type
Port 391
tcp
synotics-relay
SynOptics SNMP Relay
WELL KNOWN PORT
Port 391
udp
synotics-relay
SynOptics SNMP Relay
WELL KNOWN PORT

UnOfficial

Unofficialy or sometimes with conflict, the same port may be used by different applications.

Port Protocol (TCP/UDP) Description
TCP UDP Ports
Other ports
Ports 19300 – 19400
Port 19300- Port 19400 Port 19400- Port 19500 Port 19500- Port 19600 Port 19600-
Port 2015
Ports those registered with IANA are shown as official ports. The same port number
Port 642
Ports those registered with IANA are shown as official ports. The same port number
Port 9420
Ports those registered with IANA are shown as official ports. The same port number
Port 8043
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Port 1689
Port 1689 is used for Microsoft Key Management Service (KMS) activation. KMS is a
Port 904
Port 904 is typically used for communication with the VMware Server Management User Interface
Port 1651
Port 1651 is primarily used for communicating with a software program called “ANSYS Workbench
Port 5052
Ports those registered with IANA are shown as official ports. The same port number
Port 4358
Port 4358 is used for the Communication Service for Mandiant Intelligent Response Framework. Ports
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