On Mon, 10 Mar 2014, Maechler Philippe wrote:
How do you manage your IPv6 Reverse Entries?
Let's assume that we have a /32 IPv6 subnet for our needs and that we only
publish PTR records where they are needed like for mail servers and maybe
DNS and web servers.
Our Network is: 2001:db8::/32
This would give us a Zone named 8.b.d.0.1.0.0.2.ip6.arpa
Our DNS has the ip 2001:db8:193:192::20/64 and the other one has
2001:db8:193:193::20/64
1) Would you create an entry in 8.b.d.0.1.0.0.2.ip6.arpa like:
20.2.9.1.0.3.9.1.0 IN A dns1.example.org.
20.3.9.1.0.3.9.1.0 IN A dns2.example.org.
As Chris Buxton pointed out, you lost a few necessary 0s & need "0.2" on the
tail instead of "20".
Provided you get the syntax right, any of those can work.
Choose whatever level of delegation is convenient. We do most of ours at the
/64 boundary, but we do some sparse subnets delegated at /56 & such to avoid
having a bunch of zones with almost nothing in them.
________________________________________________________________________
Jay Ford, Network Engineering Group, Information Technology Services
University of Iowa, Iowa City, IA 52242
email: jay-f...@uiowa.edu, phone: 319-335-5555
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