Our Cisco 3845 is configured as a DHCP server for the phone vlan, and has been working properly in this capacity since the beginning of time, right up until this morning anyway... Out of the 90 phones currently deployed in our vlan, 4 were stuck at the "configuring ip" message, and unregistered. When we did a sh ip dhcp pool on the router, it showed total addresses as 200 and leased addresses at 87. So we had 117 addresses available. A sh ip dhcp bindings showed that the addresses in use were scattered across the pool, and that the last address in the scope was in use. We extended the scope to include more addresses beyond that last address, and the four problem phones immediately configured using ip addresses from the extended range. We have been adding and removing phones almost daily with no issues until now. Any ideas? Is this a bug? Thanks!
