I just got an an-droid tablet which has a long device name : "android-a2abf48" and possible IPV6 MAC address.
I just enabled DHCP today to solve another vendors (Net-something) flakey DCHP giving unexpected NACKs on lease renewals.
When I refreshed the page to see that it was enabled, good.
A few minutes later I came back to that page, and saw an i-pad and the an-droid had both grabbed leases, yet the web page looked torn to bits. When I refreshed about 30 seconds later (no response in the meantime) I was presented with the login screen. Every time I go back to that page, I see 2 devices, and crud, the web server hiccups and kicks me out.
Screenshot: http://s88957110.onlinehome.us/MAC.png