We have 2 DHCP servers for redundancy so if one is down or being rebooted, clients can still get an IP.
Without resorting to DHCP reservations, is there any way to ensure than a workstation gets the same IP address when it is moved from from desk to desk on the same network with a short period of time (such as less than 30 minutes)?
We have a problem when we build a system in the IT department and then move it to the user's office desk. When the system is powered up at the user's desk, there is a 50-50 chance that the other DHCP server will answer when and assign the system a different IP which causes some problems with some of our software. It takes some time for DNS to update with the new IP for this system and we have to flush DNS on some of our servers if we don't want to wait.
Can the 2 DHCP servers communicate and check to see if the workstation has an existing lease that has not yet expired and assign it the same IP?