Before the switch our DHCP server was a lower-end consumer router. No way to access the configuration, much less add a MAC-anchored static address. Yeah, that would have been easiest :)

After some discussion we decided not to run a DHCP server on one of the Linux boxes in addition to it's other duties. Maybe later. We *were* looking for quick, which it would have been except for the legacy Linux server that was being persnickety.