DHCP lease and expiry
Posted on 2010-11-24
In regards to DHCP leases, can anyone tell me what happens when the lease expires but the client is still connected to the network? And what about when the client disconnects?
Basically, I have a wireless network with 30 IP addresses that are given out via DHCP. At the moment, the DHCP lease period is set to 24 hours. Since this is wireless, there are people joining and disconnecting all the time, unlike a wired environment with client PC's where they tend to remain.
If Laptop1 comes along and grabs an IP address at 13:00, then disconnects at 14:00, does this mean that IP is 'reserved' until 13:00 the next day?
Likewise, if we changed the lease time to 30 mins, will Laptop1 have to request a new IP at 13:30, or does it automatically keep the existing one although the lease time has expired, due to the fact that it is still connected?