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Men & Mice Support said:
Re: delegating authority to a customer
From: Mia''s Virtual Post Office
Date: Monday, July 31, 2000
Time: 2:48:53 pm
>At 12:50 PM -0500 7/31/00, Mia's Virtual Post Office wrote:
>>Hello, I cannot seem to remember how to set this up correctly:
>>
>>I need to allocate a 3 class C's off to a customer of ours. We get the
>>address space from our upscale who in tern delegates authority to us.
>>Our customer now has his own DNS server running on our network and would
>>like us to now delegate authority of this class of IP's off to them and
>>their DNS server.
>>
>>This is on /23 and one /24
>
>In general, if the delegation to you is of the same subnet as what
>you want to delegate, you generally can't quite do it. If the
>delegation to you is bigger than what you want to delegate to the
>customer, then things are easier - just add NS records.
It is part of the same subnet, but it is at the tale end of a /21. We
just want to delegate authority off to them part of the /21.
>
>Unfortunately, your /23 subnet is probably delegated to you as
>individual /24 subnets. So the delegation to you is probably the same
>size as what you want to delegate.
It is actually part of a /21, but yes each block is being delgated as /24.
>
>Three options then are available:
>
>o Get your upstream to delegate to your customer. May not be
>desirable, and you may not get your upstream to do it even if you try.
Could try this..
>
>o Set your servers up as secondary servers for the zone, using your
>customer's servers as primary. (Likely the best option for you)
This is probabably the route to go.
>
>o Use the rules for classless subnet delegation, where you create
>CNAME records for every reverse name, instead of PTR records, and
>make them all aliases of something delegated to your customer.
>Clumsy, not very flexible, but it gets your servers out of the
>picture for the final reverse zone files.
I think I will try this.
jer
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