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Community Member

Cisco IP Phone switch ports and mac addresses

Hello experts,

Considering that most of the Cisco IP Phones currently have 2 "switch ports", one that connects to the actual switch and one to a PC:

Do they have 2 mac addresses, one for each port?

Thanks.

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Community Member

Cisco IP Phone switch ports and mac addresses

Each phone has a single MAC address. Basically the phone is a two port switch and as such carries the MAC address of the device connected to the second port into the MAC address table.  This is apparent when you issue the show CDP neighbors detail command.

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