How to do I do reverse on a Supernet?

Roderick B. Greening roderick at cableatlantic.nf.ca
Wed Jul 21 15:31:31 UTC 1999


Also, the RFC meantioned is meant for /24 - /30, and not the other
direction. Unless I have read it wrong.

On Wed, 21 Jul 1999, Roderick B. Greening wrote:

> 
> 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.		|
> 
> 
> 

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



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