DHCP Failover supports BOOTP clients in Windows Server 2012 R2

DHCP Failover is a new feature in Windows Server 2012 which provides for high availability of DHCP service.  Two DHCP servers in a failover relationship synchronize the IP address lease information on a continual basis, there by keeping their respective databases up-to-date with client information and in sync with each other. In Windows Server 2012,…


Using cascaded relay agents with Windows DHCP Windows Server 2012

Introduction Deploying DHCP failover translates into deploying more DHCP servers working in an Active-Active or Active-Passive mode for a set of scopes/subnets. Given the limitations in certain older switches/routers on the number of IP helpers that can be configured, configuring additional IP helpers to reach these new servers can become a problem. This problem can…


DHCP Failover patch to address issues caused with a redundant router configuration

Are you using or plan to use a redundant IP helper configuration on routers with a Windows Server 2012 DHCP failover? Some earlier versions of router redundancy implementations (HSRP-Hot Standby Router Protocol/VRRP-Virtual Router Redundancy Protocol) by Cisco and other vendors introduce redundancy in the DHCP messages while relaying DHCP requests. This means a duplication of…