I have a windows 2000 Server sp4 as a DHCP Server in single domain with about 200 clients. Client lease 5 days duration, most clients are on dynamic ip setting.
We had a power cut and dhcp server went offline, while offline some of the clients who were connected are now not able to connect to network as dhcp server was not found. from my knowledge as the lease duration is set to 5 days all client should still able to hold of same ip addresses unless the client expires lease duration.
Please explain as why client lost connectivity while DHCP server was offline.
2) From above scenario, is it possible to have 2 dhcp server for fault tolerant, if server A not available then Server B will release ip addreses.
3) Any third party tool for dhcp fault tolerant and alerting systems administrator will be a bonus.