It is possible to use a pair of Cisco routers as a resilient DHCP server pair, both using the same address pool?
We are looking at setting a couple up as a HSRP pair, and it would be useful if they could both offer DHCP leases. The most ideal scenario would be a situation where they are aware of which leases the other has offered and not offer those ones.
The research I have done suggests the Cisco DHCP is very much a stand alone unit. Does anyone know any different?
That is an option, or some people split it 80/20. The issue is you need to make sure both routers have sufficient space for your whole address space, to cover a long outage. This means you use twice as many IP addresses.
You can do a DHCP cluster with UNIX or Windows servers, though it would be cheaper and easier if we could do it with the hardware we already have.
"in this case if a router should fail the other one can learn the bindings created by the failed node."
I am not sure about this. What are you trying to do ? Let both routers write to the same file and have the databases "merged" ? I doubt this will work (although the tought is appealing, interesting lab exercise :-)
Hi everyone, I would like to thank you in advance for any help you can provide a newcomer like myself!
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