We have a wierd problem with our Wireless IP Phones. Sometimes they dont get an IP from the DHCP server (Which is the 4503 Switch) It says IP confuration failed. We have total of 234 addresses in the pool and out of which 151 addresses are used by phones, ATA's and IP Phones. When I typed the command sh ip dhcp binding on the switch it shows that it has asigned addresses all the way till x.x.x.254 and skipped some address in between. the address pool is x.x.x.20 - x.x.x.254
I typed this command on the switch:
clear ip dhcp conflict *
As soon as I did that the wireless IP phone got IP address from the switch.
Why did this happen? How can we avoid this so it does not happen again?
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