nanog mailing list archives

Re: IPv4 ANYCAST setup


From: Florian Weimer <fweimer () bfk de>
Date: Fri, 26 Mar 2010 14:03:22 +0000

* Jeroen Massar:

Simple recipe:
 - Box with:
   - Your favourite OS
   - Quagga or OpenBGPd
   - Your favourite DNS server
 - Announce the IP of the anycast node in BGP
 - Monitor the DNS server, when it does not work kill your local BGPd
   and notify the admins that it broke

This is fine if you just use BGP to indirectly hook into your IGP.
For global anycast, you need a sufficiently short prefix with no
non-anycast services on it.  This can be difficult to justify for
newcomers.

-- 
Florian Weimer                <fweimer () bfk de>
BFK edv-consulting GmbH       http://www.bfk.de/
Kriegsstraße 100              tel: +49-721-96201-1
D-76133 Karlsruhe             fax: +49-721-96201-99


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