cancel
Showing results for 
Search instead for 
Did you mean: 
cancel
1851
Views
5
Helpful
0
Replies

Very strange MAC addresses showing up in DHCP bindings

Hi, I have a dhcp pool on a public network and recently there are very strange MAC addresses geting dhcp from the router.

Here is an example:

10.20.2.155         0034.6564.3766.6666.    Nov 21 2011 02:43 PM    Automatic

                    3337.64

and also:

10.20.1.189         004b                    Nov 20 2011 06:07 PM    Automatic

The router is giving out IP's to both DHCP and BOOTP requests.

The IOS is pretty old, c2801-advsecurityk9-mz.124-3g.bin and I will upgrade it in the next fiew days wich will probably fix this issue. I am just curious how a client can use such an erroneus MAC address and get a DHCP binding? Or is this because of a buggy IOS?

0 Replies 0
Getting Started

Find answers to your questions by entering keywords or phrases in the Search bar above. New here? Use these resources to familiarize yourself with the community: