How to get history of IP used on a MAC address

[Abhinav-Network]

I am trying to get the previously used IP for a particular computer. The dhcp lease is being handed out by our Cisco Router with lease 7. However, I need data of IP changed from the last 2 months. Please advise. 

[balaji.bandi · Accepted solution]

Cisco device not going to have that information in the device, so you need to Look at DHCP Logs if you have any information.

or if you have any tracking logs as syslog server, then check the archieve - if i understand the requirement correctly.

Cisco Router - if this is DHCP Server then (you wont see much log once the buffer full, as i mentioned until you configured syslog to offload logs.

[Abhinav-Network]

Thank you for the quick response. I just checked my syslog server and unfortunately the sys log was misconfigured. My bad luck.

[balaji.bandi · Accepted solution]

Then you wont have that information.