nanog mailing list archives
Re: IPv6 Conventions
From: Cameron Byrne <cb.list6 () gmail com>
Date: Wed, 18 May 2011 08:21:06 -0700
On May 18, 2011 8:07 AM, "Iljitsch van Beijnum" <iljitsch () muada com> 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.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.
You may want to use some randomness to limit address scanning. Ymmv on how well this works or applies, I do it. Cb
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)