[155509] in North American Network Operators' Group
Re: Does anyone use anycast DHCP service?
daemon@ATHENA.MIT.EDU (Masataka Ohta)
Tue Aug 14 06:36:18 2012
Date: Tue, 14 Aug 2012 19:33:58 +0900
From: Masataka Ohta <mohta@necom830.hpcl.titech.ac.jp>
To: nanog@nanog.org
In-Reply-To: <BAY170-W1270872B3DA5B5C158FB7F198B00@phx.gbl>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
Joe wrote:
> In our situation customer get IP address with DHCP, DHCP server
> authenticate customer by radius.
> Authentication information is carried by option60 and option82.
I think you are not talking about wireless services with roaming.
Then, as you can identify your customer with the authentication
information and can have a static mapping for customer
configurations, you can run multiple DHCP servers without
worrying about dynamic state synchronization between the
servers.
As a malfunctioning anycast server can still advertise a route
to it, blocking routes to back up servers, you should not use
anycast.
Masataka Ohta
