Would like to know if this works, and if so, please be able to point me towards supporting documentation.
We have one 2012 R2 DHCP server, and I am exploring setting up a second DHCP server (node B) in Load Balance Mode. The one hitch to setting this up in my environment is that I am limited to using the one IP address of the current server (node A) which of course is already in the config for all of our switches. My only option is to add that one IP address that all the switches forward DHCPDISCOVERY requests to our load balancer, assign a different IP to the current node A server, bring node B up, and then have the load balancer forward requests to the two DHCP nodes in round robin mode.
It seems to me putting the two IP address on one device vs. all of the devices accomplishes the same result. The problem is that I cannot seem to find any supporting documentation for this configuration. I have contacted the load balancer's vendor support, and they claimed to have never heard of anyone doing this. Am I just way off in my thinking that this would work? Adding two IP addresses to the load balancer instead of updating hundreds of switches seems like an obvious solution.
Thank you for taking the time to read this, and respond. Also, if anyone needs any additional information or clarity, please let me know.
Regards