IP device tracking

[afsharki2]

Hello All,

I have a few IPs on the network that i need to find.  They don't have SVIs like most of all the VLANS, so i cant run sh ip arp.  I can't do CDP because they aren't cisco and the dhcp snooping does not work on these devices because they are static.  I was think about using the sh ip device tracking.  I used to use this feature along time ago and now when i execute the 'sh ip device tracking'  command, it shows nothing....not sure why, I used it about a year ago a bunch of times and it worked great.   Does anyone have any idea of how to find these static IPs on the network or how to check if ip device tracking is working?

I am currently on Version 03.07.00E, 3850 switch.  Could IP device tracking have been disabled on the image, since it appreantly had so many problems?

Thanks

[Brandon Buffin]

I'm assuming you have (or can get) the MAC address of the devices? If so, run the following command - show mac-address-table address <mac address>.

Brandon

[afsharki2]

Bad wording on my part.  The point is that I cannot get the MAC address becuase I don't know where the devices are on the network

[Brandon Buffin]

OK. Might be obvious but is "ip device tracking" enabled in global config?

Brandon

[Brandon Buffin · Accepted solution]

Just noticed this in the Cisco documentatin - "The IP device tracking table contains the host IP address learned through ARP or DHCP."

Not sure that's going to work in your scenario with no arp.

Can you ping the device from a local subnet and find the mac address? (arp -a on a Windows machine)

Brandon