dig @ipv6-address

Barry Margolin barmar at alum.mit.edu
Thu Nov 29 20:26:24 UTC 2018


In article <mailman.20.1543513461.716.bind-users at lists.isc.org>,
 Christian Weiske <cweiske at cweiske.de> wrote:

> Hello Timothe,
> 
> 
> > > I only get an error when running dig:
> > >  
> > >> $ dig @2a01:488:66:1000:53a9:2dde:0:1 cweiske.de
> > >> couldn't get address for '2a01:488:66:1000:53a:53': not found  
> > 
> > This looks like a typo. And the error doesn't match the command given.
> > 
> > I suspect that your actual 'dig' command was 'dig
> > @2a01:488:66:1000:53a:53 cweiske.de', which will reproduce the error.
> > 
> > '2a01:488:66:1000:53a:53' is not an IPv6 address.ハ You are missing
> > a :: or a couple of words.ハ (There should be 8 16-bit words delimited
> > by ':', or a single '::' ellipsis to represent a run of zeroes.)
> 
> You are right, this was no full IPv6 address.
> 
> I'm sorry for the noise, but I didn't see the difference in the two IP
> addresses. Otherwise I would not have subscribed to this list and
> written my lenghty mail.
> 
> I scrolled back my terminal and now found where I got that partial
> address from: The output of "netstat -tulpen". The listening address is
> shortened there, which I did not know before:
> 
> > Proto Recv-Q Send-Q Local Address           Foreign Address
> > udp6       0      0 2a01:488:66:1000:53a:53 :::*
> 
> From there I copied it and tried to "dig @" my domain, which failed as
> I wrote.
> 
> Why there were different IPs in the command and the output of my
> first example .. I have no idea. I somehow mixed up my notices.
> 
> Sorry again.

The last : in the netstat output is separating the IP address from the 
port number -- :53 means it's listening on port 53, the standard DNS 
port.

But it also seems like it's using its own form of abbreviation, since 
there aren't 8 hex fields before that.

-- 
Barry Margolin
Arlington, MA


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