DHCP server failover: advise is needed
galtsev at kicp.uchicago.edu
Fri Nov 22 17:00:15 UTC 2019
I was running ISC DHCP server for longer than I would care to remember.
Now I decided to climb out of the cave and configure failover set
(primary-secondary), and I seem to hit brick wall, which I need help
with. I only need IP v4, no v6, which may simplify things.
Could someone point to description of working DHCP failover configuration?
I do not want to make two independent DHCP servers handling half of the
pool each. We are not that rich as far as IP space is concerned.
I am not married to ISC DHCP server, so any one I can run on FreeBSD
will do, because:
My current configuration is something that was gradually migrated and/or
adjusted through several generations of systems, and server versions
over the years. It works. When I tried to incorporate what I need for
failover following ISC documentation, and some people's guides, I
discovered, I need more sophisticated structure of sections and
subsections, which I figured out finally. But the annoying part was: in
ISC documentation there is no general stricture of which section can
appear inside which; like:
You can create each of sections/subsections following documentation, but
to put them together making consistent config file you (I at least) have
to figure on your own which section goes inside of which.
So, I am not married to ISC DHCP server, we didn't get along now as far
as my use of documentation is concerned. Anything that works - with
failover! - on FreeBSD will be great.
Thanks in advance for all your answers!
Sr System Administrator
Department of Astronomy and Astrophysics
Kavli Institute for Cosmological Physics
University of Chicago
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