Hello,
We are observing some weird output on our DHCP bindings. For some reason when I view DHCP bindings on our main switch it prepends each MAC address of the client with a 01 in front of it. However if I view the MAC address table it uses the standard 48bit output and display. Any reason for this? It is more of an annoyance than anything but it can make tracing clients on the network more time consuming. Here is a sample output from our switch DHCP bindings:
10.20.5.117 01d4.bed9.411d.df Jun 04 2013 08:27 AM Automatic
10.20.5.118 01e0.db55.df73.70 May 31 2013 08:25 AM Automatic
10.20.5.121 01b8.ca3a.d2de.bb Jun 04 2013 09:02 AM Automatic
10.20.5.123 01b8.ca3a.d1ea.cf Jun 04 2013 08:04 AM Automatic
10.20.5.124 01d4.bed9.3218.dc Jun 04 2013 09:15 AM Automatic
10.20.5.126 01a8.2066.54d6.d6 Jun 04 2013 09:55 AM Automatic
10.20.5.128 3cd9.2b7b.bdc0 Jun 03 2013 09:04 PM Automatic
10.20.5.133 001c.4244.5fbc Jun 04 2013 10:05 AM Automatic
10.20.5.137 01e0.db55.e12a.37 Jun 04 2013 07:48 AM Automatic
10.20.5.143 01e0.db55.e927.c2 Jun 04 2013 09:29 AM Automatic
Another weird item to note is that we do have some entries in the binding list that show the standard format MAC address as you can see from the list above.
NOTE: We are doing DHCP on the switch and we have a Cisco powered wireless network.
- James
