nanog mailing list archives
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
Current thread:
- Does anyone use anycast DHCP service? Joe (Aug 13)
- Re: Does anyone use anycast DHCP service? Robert E. Seastrom (Aug 13)
- Re: Does anyone use anycast DHCP service? Leo Bicknell (Aug 13)
- Re: Does anyone use anycast DHCP service? Masataka Ohta (Aug 14)
- <Possible follow-ups>
- Re: Does anyone use anycast DHCP service? Ryan Malayter (Aug 13)
- Re: Does anyone use anycast DHCP service? Leo Bicknell (Aug 13)
- Re: Does anyone use anycast DHCP service? Ryan Malayter (Aug 13)
- Re: Does anyone use anycast DHCP service? sthaug (Aug 13)
- Re: Does anyone use anycast DHCP service? Victor Kuarsingh (Aug 13)
- Re: Does anyone use anycast DHCP service? Leo Bicknell (Aug 13)