nanog mailing list archives
Re: IPv6 Conventions
From: Owen DeLong <owen () delong com>
Date: Wed, 18 May 2011 20:21:35 -0700
On May 18, 2011, at 8:05 AM, Iljitsch van Beijnum wrote:
On 18 mei 2011, at 16:44, Todd Snyder wrote:1) Is there a general convention about addresses for DNS servers? NTP servers? dhcp servers?There are people who do stuff like blah::53 for DNS, or blah:193:77:81:20 for a machine that has IPv4 address 193.177.81.20. For the DNS, I always recommend using a separate /64 for each one, as that way you can move them to another location without having to renumber, and make the addresses short, so a ::1 address or something, because those are the IPv6 addresses that you end up typing a lot. For all the other stuff, just use stateless autoconfig or start from ::1 when configuring things manually although there is also a little value in putting some of the IPv4 address in there. Note that 2001:db8::10.0.0.1 is a valid IPv6 address. Unfortunately when you see it copied back to you it shows up as 2001:db8::a00:1 which is less helpful.2) Are we tending to use different IPs for each service on a device?No, the same Internet Protocol.
I believe he meant different IP addresses and I highly recommend doing so. If you do so, then you can move services around and name things independent of the actual host that they happen to be on at the moment without having to renumber or rename.
Finally, what tools do people find themselves using to manage IPv6 and addressing?Stateless autoconfig for hosts, EUI-64 addressing for routers, VLAN ID in the subnet bits. That makes life simple. Simple be good.
Yep, where that works, those are fine ideas. Owen
Current thread:
- IPv6 Conventions Todd Snyder (May 18)
- Re: IPv6 Conventions Jeroen Massar (May 18)
- Re: IPv6 Conventions Iljitsch van Beijnum (May 18)
- Re: IPv6 Conventions Cameron Byrne (May 18)
- Re: IPv6 Conventions Owen DeLong (May 18)
- Re: IPv6 Conventions Iljitsch van Beijnum (May 19)
- Re: IPv6 Conventions sthaug (May 19)
- Re: IPv6 Conventions Owen DeLong (May 19)
- Re: IPv6 Conventions Erik Muller (May 19)