nanog mailing list archives
Re: Numbering nameservers and resolvers
From: Jeroen Massar <jeroen () unfix org>
Date: Mon, 16 Aug 2010 11:09:19 +0200
On 2010-08-16 08:49, Mike wrote:
Hi Folks, I am needing to renumber some core infrastructure - namely, my nameservers and my resolvers - and I was wondering if the collective wisdom still says heck yes keep this stuff all on seperate subnets away from eachother? Anyone got advice either way? Should I try to give sequential numbers to my resolvers for the benefit of consultants ... like .11, .22 and .33 for my server ips?
Take a IPv4 /24, /28, whatever size you might think you need and an IPv6 /64 and make it your 'service prefix', then anycast this inside your network and do the standard 'bgp daemon on the box, monitor the local service' trick and kill the announcement when the service does not work, presto. As for the actually numbers, just keep them simple. Using port-numbers (53 = DNS, 25 = SMTP etc etc etc) where possible is easy for at least the more technical folks, of course IPv4 only goes up to 255, IPv6 does not have that issue. Greets, Jeroen
Current thread:
- Re: Numbering nameservers and resolvers, (continued)
- Re: Numbering nameservers and resolvers John Kristoff (Aug 17)
- Re: Numbering nameservers and resolvers Doug Barton (Aug 17)
- Re: Numbering nameservers and resolvers Patrick W. Gilmore (Aug 16)
- Re: Numbering nameservers and resolvers Arie Vayner (Aug 16)
- Re: Numbering nameservers and resolvers Jared Mauch (Aug 16)
- Re: Numbering nameservers and resolvers Aria Stewart (Aug 16)
- Re: Numbering nameservers and resolvers Valdis . Kletnieks (Aug 16)
- Re: Numbering nameservers and resolvers Jeremy Kister (Aug 16)
- Re: Numbering nameservers and resolvers Randy Bush (Aug 16)
- Re: Numbering nameservers and resolvers Arie Vayner (Aug 16)
- Re: Numbering nameservers and resolvers Jeroen Massar (Aug 16)
- Re: Numbering nameservers and resolvers Doug Barton (Aug 16)
- Re: Numbering nameservers and resolvers Graham Beneke (Aug 17)
- Re: Numbering nameservers and resolvers Nick Olsen (Aug 17)
- Re: Numbering nameservers and resolvers Mikael Abrahamsson (Aug 17)
- Re: Numbering nameservers and resolvers Robert E. Seastrom (Aug 18)
- Re: Numbering nameservers and resolvers Mikael Abrahamsson (Aug 17)