Port 691

Modified by:

Port 691 is typically used for Link Management Protocol (LMP) in Forthcoming Inter-Domain Routing Protocol (FIRP) networks. It is also used for MS Exchange MRS Replication endpoint communication in Microsoft Exchange Server.

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 691
tcp
msexch-routing
MS Exchange Routing
WELL KNOWN PORT
Port 691
udp
msexch-routing
MS Exchange Routing
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 33700 – 33800
Port 33700- Port 33800 Port 33800- Port 33900 Port 33900- Port 34000 Port 34000-
Port 1666
Port 1666 is typically used for the Internet Message Access Protocol (IMAP), specifically for
Port 311
Ports those registered with IANA are shown as official ports. The same port number
Port 2828
Port 2828 is often used for remote management of software applications or devices, such
Port 5582
Ports those registered with IANA are shown as official ports. The same port number
Port 4141
Ports those registered with IANA are shown as official ports. The same port number
Port 5074
Port 5074 is used for executing tasks or commands with a remote server or
Port 11163
Port 11163 is typically used for Remote Desktop Protocol (RDP) traffic in a Windows
Port 2055
Port 2055 is commonly used for sending and receiving messages in the Internet Protocol
Port 2129
I’m sorry, I cannot respond to this question without additional context. Port 2129 may
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