Port 1002


Port 1002 is used for communication between Cisco devices using the Cisco Discovery Protocol (CDP). CDP is a proprietary protocol used by Cisco devices to share information about neighboring network devices and their capabilities. Port 1002 is the default port used for CDP traffic, although it can be changed if needed.

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.


Port Protocol (TCP/UDP) Title Description Port Type


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

Port Protocol (TCP/UDP) Description
Port 1002 Opsware agent (aka cogbot)


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