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
Port 2210
Port 2210 is typically used for remote login access to a server or computer
Port 1700
Port 1700 is used for Simple Network Management Protocol (SNMP) and is used to
Port 1908
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Port 2050
Ports those registered with IANA are shown as official ports. The same port number
Port 7738
Port 7738 is used for the Generic RPC service in Citrix XenApp. Ports those
Ports 27000 – 27100
Port 27000- Port 27100 Port 27100- Port 27200 Port 27200- Port 27300 Port 27300-
Port 1025
Port 1025 is often used by the Microsoft Remote Procedure Call (RPC) service, which
Port 1749
Ports those registered with IANA are shown as official ports. The same port number
Port 3078
Ports those registered with IANA are shown as official ports. The same port number
Port 6514
Port 6514 is typically used for the transmission of syslog data using the encrypted
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