Mac address to IP address resolution

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3Com
Availability
Bandwidth
Cabling
Cisco
Ethernet
Hardware
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Network monitoring
Network protocols
Networking
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Routers
Switches
TCP
How can we resolve IP address from Mac address and can we do this from Cisco switch 3750? We are able to track port no and associated Mac address from Cisco switch by using the command #sh mac-address-table dyanamic>, but we also want to track the associated IP address with port no. Please suggest how can we get this from Cisco router and switch(3750).

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Once you have obtained the MAC from your switch, you can then go to your router and type ‘show arp | include xxxx.xxxx.xxxx’ (where x is your MAC) and it should produce your IP.

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