DHCP server, duplicate forwards from VRRP'd relays

Brennan,Andrew andrew.brennan at drexel.edu
Tue Oct 31 17:00:10 UTC 2017

Ok, so I've looked for what I think I'm looking for in the dhcpd.conf man page and can't find it.  But, I might have something in mind that doesn't exist - not sure.

I have two NAT appliances forwarding my client DHCP discover/requests to the server and the server - having no configuration otherwise - replies to both with corresponding offer packets, etc.  Seems like overkill to me and I've opened a case with the vendor to see if I can't configure only the active router do the relaying -- but I had a thought that my server *could* be configured to know that both relays are doing the same job and that it only needs to respond to one of those requests (or prefer one over the other, etc.).

Is there a corresponding configuration that I haven't figured out yet?  Or is this something that doesn't exist (yet) in the realm of the ISC DHCPD?  And, lastly ... if it doesn't exist as an option, would this be a useful option/feature for the server?



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