Sure, the first one that responds wins.
They don't even need to be on the same physical network. Let's say that you
have DHCP Server #1(10.10.10.10) in the production site and DHCP Server #2
(192.168.1.1) at your DR site.
The router is configured with a helper address for both:
ip helper-address 10.10.10.10
ip helper-address 192.168.1.1
The broadcast will go to both of them, and the first to respond wins.
WARNING: You better have your DHCP servers setup so that they can talk to
each other and keep each other up to date as to what addresses they've
allocated. Otherwise, you can have problems. They tend to ping the address
to see if it's OK, but access lists can make that not work well at times.
Check with your DHCP server vendor for info on that part.
Mike
Message Posted at:
http://www.groupstudy.com/form/read.php?f=7&i=14607&t=14444
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