IPv6 resolvers

Mark Kamichoff prox at prolixium.com
Wed Jan 4 20:46:56 UTC 2012


On Wed, Jan 04, 2012 at 09:39:39PM +0100, Seth Mos wrote:
> And a similar mistake I see others respond too as well, this is
> another domain with just a IPv4 record. That was not really what I was
> complaining about but I was not specific enough in my email
> 
> When requesting the DNS for the hostname with a Quad A the story is
> entirely different!
> 
> Try www.pfsense.com or www.didi.nl

Still not seeing additional latency from here:

(neodymium:15:44)% dig @2001:470:20::2 www.didi.nl. AAAA           

; <<>> DiG 9.7.3 <<>> @2001:470:20::2 www.didi.nl. AAAA
; (1 server found)
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 33979
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION:
;www.didi.nl.			IN	AAAA

;; ANSWER SECTION:
www.didi.nl.		3520	IN	AAAA	2001:888:2087:33::132

;; Query time: 20 msec
;; SERVER: 2001:470:20::2#53(2001:470:20::2)
;; WHEN: Wed Jan  4 15:44:06 2012
;; MSG SIZE  rcvd: 57

And if that is already cached, let's try something that should require a
fresh lookup:

(neodymium:15:44)% dig @2001:470:20::2 tengigabitethernet.com. AAAA

; <<>> DiG 9.7.3 <<>> @2001:470:20::2 tengigabitethernet.com. AAAA
; (1 server found)
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 41662
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION:
;tengigabitethernet.com.		IN	AAAA

;; ANSWER SECTION:
tengigabitethernet.com.	3600	IN	AAAA	2001:48c8:1:104::e

;; Query time: 84 msec
;; SERVER: 2001:470:20::2#53(2001:470:20::2)
;; WHEN: Wed Jan  4 15:44:41 2012
;; MSG SIZE  rcvd: 68

Again, not too bad.. 

- Mark

-- 
Mark Kamichoff
prox at prolixium.com
http://www.prolixium.com/
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