Dig for link-local

Alok Raj alok.raj at spanservices.com
Mon Mar 25 14:35:30 UTC 2013

Hi Phil

This is really awesome! 
It works for me, my own glibc-2.3 is able to resolve the domain name and fetch me an ip address.

I had re'd that scope concept in link-local, but was not sure about using it in resolv.conf.

Thank you all for replying.

God bless you!!


-----Original Message-----
From: bind-users-bounces+alok.raj=spanservices.com at lists.isc.org [mailto:bind-users-bounces+alok.raj=spanservices.com at lists.isc.org] On Behalf Of Phil Mayers
Sent: Monday, March 25, 2013 5:57 PM
To: bind-users at lists.isc.org
Subject: Re: Dig for link-local

On 25/03/13 09:19, Alok Raj wrote:
> Hi Guys,
> Basically I am trying to do the following:
> 	1) If I use link-local ipv6 address (of domain controller) in my resolv.conf, my resolver routines (glibc 2.13) is not able to resolve a domain name to an ip address, though I am able to ping that link-
> 	     local ipv6 address.

Have you specified the "scope" in the link-local address i.e.


...or similar? Link-locals cannot be used without a scope. For example:

# dig @fe80::blah www.ic.ac.uk

; <<>> DiG 9.8.3-P4-RedHat-9.8.3-5.P4.el5 <<>> @fe80::blah www.ic.ac.uk ; (1 server found) ;; global options: +cmd ;; connection timed out; no servers could be reached

...fails, but then this:

# dig @fe80::blah%eth0 www.ic.ac.uk

; <<>> DiG 9.8.3-P4-RedHat-9.8.3-5.P4.el5 <<>> @fe80::blah%eth0 www.ic.ac.uk ; (1 server found) ;; global options: +cmd ;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 32643 ;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 4, ADDITIONAL: 7

...works. This is basic IPv6, and not dig-specific.
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