Reverse DNS for IPv6 client networks

Owen DeLong owen at delong.com
Tue Sep 14 10:08:45 CDT 2010


On Sep 14, 2010, at 5:27 AM, Elmar K. Bins wrote:

> Hi guys,
> 
> I am looking for operational experience here.
> 
> We have just turned up IPv6 in our "guest wireless", by way of using RA
> for address distribution and DHCPv6 for the DNS server address (stupid, yup).
> 
> Apart from the dhcp6 part seemingly not working on Juniper ISGs (or maybe it's
> my windows *and* that Ubuntu), I now see IPv6 addresses instead of names.
> 
> I as a networking droid have not much quarrel with that, but I am interested
> in how or whether at all others handle this.
> 
> Are you creating DNS entries somehow (reverse and, ultimately, forward),
> are you using BIND "generate" statements, are you using wildcards...or
> are you just ignoring this for the "dynamic boxes"?
> 
> Please enlighten me!
> 
> Elmar.

I would strongly discourage $GENERATE statements... You won't have enough
memory or even disk space to hold the results.

I think the choices are either live with numbers, use a  wildcard, or use dynamic
DNS name registration.

Owen





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