[Dnsmasq-discuss] DHCPv6 hostname resolving

[Simon Kelley]

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On 04/04/14 09:17, Quintus wrote:
> Hi Simon,
> 
> Am 03.04.2014 20:38, schrieb Simon Kelley:
>> Certainly, if there's no other reason not to, you can solve this 
>> problem by reconfiguring your client to ask for a non-temporary 
>> address.
> 
> You?re partly right ? if I configure dhcpcd to not request a
> temporary address, the lease file contains this:
> 
> ------------------------------------------- 1396620247 246859459
> 2001:4dd0:ff00:8918:1:f858:930c:267b atlantis 
> 00:01:00:01:1a:93:42:fa:3c:97:0e:b6:c6:c3 
> -------------------------------------------
> 
> And resolving of plain names works just fine (BUT, see below):
> 
> % dig atlantis AAAA
> 
> ------------------------------------------- ; <<>> DiG 9.9.2-P2
> <<>> atlantis AAAA ;; global options: +cmd ;; Got answer: ;;
> ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 2039 ;; flags: qr
> aa rd ra ad; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0
> 
> ;; QUESTION SECTION: ;atlantis.			IN	AAAA
> 
> ;; ANSWER SECTION: atlantis.		0	IN	AAAA
> 2001:4dd0:ff00:8918:1:f858:930c:267b
> 
> ;; Query time: 1 msec ;; SERVER: 10.37.59.2#53(10.37.59.2) ;; WHEN:
> Fri Apr  4 10:04:46 2014 ;; MSG SIZE  rcvd: 54 
> -------------------------------------------
> 
> However, the fully qualified name still doesn?t work:
> 
> ------------------------------------------- ; <<>> DiG 9.9.2-P2
> <<>> atlantis.cable.internal.xxx.eu AAAA ;; global options: +cmd ;;
> Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id:
> 53712 ;; flags: qr rd ra ad; QUERY: 1, ANSWER: 0, AUTHORITY: 0,
> ADDITIONAL: 0
> 
> ;; QUESTION SECTION: ;atlantis.cable.internal.xxx.eu.	IN AAAA
> 
> ;; Query time: 1 msec ;; SERVER: 10.37.59.2#53(10.37.59.2) ;; WHEN:
> Fri Apr  4 10:10:17 2014 ;; MSG SIZE  rcvd: 64 
> -------------------------------------------
> 
> Resolving the fully qualified A record works:
> 
> ------------------------------------------- ; <<>> DiG 9.9.2-P2
> <<>> atlantis.cable.internal.xxx.eu A ;; global options: +cmd ;;
> Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id:
> 17342 ;; flags: qr aa rd ra ad; QUERY: 1, ANSWER: 1, AUTHORITY: 0,
> ADDITIONAL: 0
> 
> ;; QUESTION SECTION: ;atlantis.cable.internal.xxx.eu.	IN A
> 
> ;; ANSWER SECTION: atlantis.cable.internal.xxx.eu.	0 IN A
> 10.37.59.42
> 
> ;; Query time: 1 msec ;; SERVER: 10.37.59.2#53(10.37.59.2) ;; WHEN:
> Fri Apr  4 10:10:11 2014 ;; MSG SIZE  rcvd: 80 
> -------------------------------------------
> 
> Neither is the AAAA record created in the base domain:
> 
> ------------------------------------------- ; <<>> DiG 9.9.2-P2
> <<>> atlantis.internal.xxx.eu AAAA ;; global options: +cmd ;; Got
> answer: ;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 6544 
> ;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL:
> 0
> 
> ;; QUESTION SECTION: ;atlantis.internal.xxx.eu. IN AAAA
> 
> ;; AUTHORITY SECTION: xxx.eu.	2560	IN	SOA	ns.yyy.de.
> hostmaster.xxx.eu. 1391783412 16384 2048 1048576 2560
> 
> ;; Query time: 50 msec ;; SERVER: 10.37.59.2#53(10.37.59.2) ;;
> WHEN: Fri Apr  4 10:14:35 2014 ;; MSG SIZE  rcvd: 124 
> -------------------------------------------
> 
> So I conclude that the temporary address requestion is only part of
> the problem. What do you think?

I think you may well be right. What happens if you look up the
_address_, ie

dig -x 2001:4dd0:ff00:8918:1:f858:930c:267b


Cheers,


Simon.

> 
> Vale, Quintus
> 
> 
> 
> _______________________________________________ Dnsmasq-discuss
> mailing list Dnsmasq-discuss at lists.thekelleys.org.uk 
> http://lists.thekelleys.org.uk/mailman/listinfo/dnsmasq-discuss
> 

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