nanog mailing list archives
Re: Geographic map of IPv6 availability
From: Iljitsch van Beijnum <iljitsch () muada com>
Date: Mon, 15 Oct 2007 12:25:42 +0200
On 15-okt-2007, at 11:50, Nathan Ward wrote:
The way I read the portion of the thread related to resolver behavoir was that the resolver behavior was being discussed. Not the client.The resolver should have an attribute to select the preference betweenA vs. AAAA. Otherwise, it's setting network policy through code.
How is using an address that is present "setting network policy"?
For those who missed it - OS level address selection policy won't apply to BIND without specific code, as BIND is a recursive resolver so won't be calling getaddrinfo(3).
(I missed that we were talking about BIND in my previous message, by the way. Sorry.)
Some quick experimentation suggests that BIND ignores the policy table and just round robins (or something that looks like it) through all available addresses. Try some different non-existing hostnames under kame.net, which has two NS records that both have an IPv4 address and one has one IPv6 address and the other one has two.
Current thread:
- Re: Geographic map of IPv6 availability, (continued)
- Re: Geographic map of IPv6 availability Mark Prior (Oct 07)
- RE: Geographic map of IPv6 availability Tony Hain (Oct 11)
- Re: Geographic map of IPv6 availability Kevin Loch (Oct 11)
- Re: Geographic map of IPv6 availability Nathan Ward (Oct 11)
- Re: Geographic map of IPv6 availability Paul Vixie (Oct 13)
- Re: Geographic map of IPv6 availability Martin Hannigan (Oct 14)
- Re: Geographic map of IPv6 availability Iljitsch van Beijnum (Oct 14)
- Re: Geographic map of IPv6 availability JORDI PALET MARTINEZ (Oct 14)
- Re: Geographic map of IPv6 availability Martin Hannigan (Oct 15)
- Re: Geographic map of IPv6 availability Nathan Ward (Oct 15)
- Re: Geographic map of IPv6 availability Iljitsch van Beijnum (Oct 15)
- Re: Geographic map of IPv6 availability Mark Andrews (Oct 15)
- Re: Geographic map of IPv6 availability Martin Hannigan (Oct 15)
- Re: Geographic map of IPv6 availability Mark Andrews (Oct 15)
- Re: Geographic map of IPv6 availability Martin Hannigan (Oct 14)