nanog mailing list archives
Re: DNS anycasting - multiple DNS servers on same subnet Vs registrar/registry policies
From: Stephane Bortzmeyer <bortzmeyer () nic fr>
Date: Tue, 29 May 2012 12:34:51 +0200
On Mon, May 28, 2012 at 06:56:29PM -0500, Brett Frankenberger <rbf+nanog () panix com> wrote a message of 15 lines which said:
How does your employer know if two nameservers (two IP addresses) are on the same subnet?
The current heuristic for IPv4 is "belongs in the same /28" (and /64 for IPv6). Otherwise, Mark Andrews is right, we should use a BGP feed but it would be complicated for a command-line tool.
Current thread:
- Re: DNS anycasting - multiple DNS servers on same subnet Vs registrar/registry policies, (continued)
- Re: DNS anycasting - multiple DNS servers on same subnet Vs registrar/registry policies David Conrad (May 29)
- Re: DNS anycasting - multiple DNS servers on same subnet Vs registrar/registry policies Tony Finch (May 28)
- Re: DNS anycasting - multiple DNS servers on same subnet Vs registrar/registry policies Anurag Bhatia (May 28)
- Re: DNS anycasting - multiple DNS servers on same subnet Vs registrar/registry policies Patrick W. Gilmore (May 28)
- Re: DNS anycasting - multiple DNS servers on same subnet Vs registrar/registry policies Anurag Bhatia (May 28)
- Re: DNS anycasting - multiple DNS servers on same subnet Vs registrar/registry policies Randy Bush (May 28)
- Re: DNS anycasting - multiple DNS servers on same subnet Vs registrar/registry policies Anurag Bhatia (May 28)
- Re: DNS anycasting - multiple DNS servers on same subnet Vs registrar/registry policies Stephane Bortzmeyer (May 28)
- Re: DNS anycasting - multiple DNS servers on same subnet Vs registrar/registry policies Brett Frankenberger (May 28)
- Re: DNS anycasting - multiple DNS servers on same subnet Vs registrar/registry policies Mikkel Mondrup Kristensen (May 28)
- Re: DNS anycasting - multiple DNS servers on same subnet Vs registrar/registry policies Mark Andrews (May 28)
- Re: DNS anycasting - multiple DNS servers on same subnet Vs registrar/registry policies Stephane Bortzmeyer (May 29)
- Re: DNS anycasting - multiple DNS servers on same subnet Vs registrar/registry policies Brett Frankenberger (May 28)
- Re: DNS anycasting - multiple DNS servers on same subnet Vs registrar/registry policies Randy Bush (May 28)
- Re: DNS anycasting - multiple DNS servers on same subnet Vs registrar/registry policies Max Larson Henry (May 28)