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Re: Does anyone use anycast DHCP service?
From: sthaug () nethelp no
Date: Mon, 13 Aug 2012 18:18:02 +0200 (CEST)

I think it would be far more reliable to simply have two independent
DHCP servers with mutually exclusive address ranges, and have one
system be secondary and "delay" its responses by 2s so it always
"loses" when the primary is up and running well.

Yes, you lose the ability for clients to get the same IP during a
lease refresh if the primary is down, but that is a small price to pay
for simplicity and robustness.

That depends on your scenario. In some situations it is important to
get the same IP. In other situations, using potentially double the
address space is unacceptable.

If these points are not a problem for you, I certainly agree that two
independent servers are potentially more reliable than a clustered
setup.

Steinar Haug, Nethelp consulting, sthaug () nethelp no


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