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Host IP address to Switch Port

ben.fletcher
Level 1
Level 1

Hi

Is it possible to easily find the switch port a host is connected to from the host ip address. This host could be connected to any of the 30+ switches in our network. We have multiple VLAN's with routing being performed by a router on a stick. I really need an automated way of doing this as I need to track down about 50 of these hosts.

Thanks for any help or advice

Ben Fletcher

2 Replies 2

umedryk
Level 5
Level 5

Hi Ben,

To find out which port an IP address is associated with simply, view a 'show arp' to find out what MAC address the given IP address is associated with and then view a 'show mac' to see where that MAC address is portwise on the switch. Unfortunately, there is not an easier way on the XL switches at this point of time.

Hi Ursula

Thanks for your help, I will give it a try.

Ben

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