IPv4 ANYCAST setup

Paul Ryland paul at transversal.com
Fri Mar 26 13:52:29 UTC 2010


> > > has someone experience in anycast ipv4 networks (to support DNS)?
> >
> > "Never been done" "Dangerous" "TCP does not work" etc etc etc.
> 
> - Yes but as for DNS, anycast is essentially used for user requests (UDP)
> not to perform zone transfer(TCP).

How-to with working configurations for Linux+Quagga:

<www.linuxsa.org.au/meetings/2006-07/anycast-dns.odt>

Further information is found in RFC3258:

<http://tools.ietf.org/html/rfc3258>

Remember to disable PMTU discovery on your DNS servers if you are using this.


Paul



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