How to do I do reverse on a Supernet?

Roderick B. Greening roderick at cableatlantic.nf.ca
Wed Jul 21 15:20:01 UTC 1999


Here's the real problem that I neglected to meantion... we're doing DDNS
on the /21, /22, and /23 blocks. Any suggestions on how to accomplish this
and set up the in-addr zone's so that we can have them dynamically updated
while the remaining /24 zones are manually configured?

On Wed, 21 Jul 1999, Michael Voight wrote:

> Yes, this is documented in DNS and Bind. (I think all editions of the
> book)
> It is also documented in RFC 2317
> 
> Michael Voight
> CSE, Cisco TAC
> 
> "Roderick B. Greening" wrote:
> > 
> > I have a block of addresses, which in classful routing are all class C
> > (/24) addresses. I have the entire /16 block, and have left some as /24,
> > but others I have supernetted as /23, /22, and /21.
> > 
> > Forward DNS is easy, but the reverse is a little more difficult. Currently
> > all my reverse is only done for the /24's and are all in seperate zone
> > files.
> > 
> > Is there a way to put the /23, /22, and /21's into seperate zone files?
> > 
> > Thanks in advance.
> > 
> > Roderick B. Greening, BSc.      |
> > Network Specialist              | roderick at cableatlantic.nf.ca
> > Cable Atlantic Inc.             |
> 

Roderick B. Greening, BSc.	|
Network Specialist		| roderick at cableatlantic.nf.ca
Cable Atlantic Inc.		|




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