[Kea-users] Reverse DDNS Config

[Jason Guy]

Hi Sebastian,

I was testing with this a week ago, and what I found was the reverse domain
works just like you indicate, in that if you specify it as 10.in-addr.arpa,
the PTR entries will just be longer; you will see PTR entries like *y.x.32*,
and *x.y.48*...

Seemed like everything worked alright, though I assume the lookup time in
this case may be a little longer if there are 1900 PTR entries under one
reverse domain... Worse case, you create 16 reverse domains to speed up the
resolution of the PTR entries...

I was not sure what you meant by "how often" and "how many". Can you
clarify?

Jason

On Wed, Feb 8, 2017 at 6:04 AM, Wessel, Sebastian <Sebastian.Wessel at takko.de
> wrote:

> Hello List-Members,
>
>
>
> we plan to move our dhcp server (ca. 1,900 ipv4 scopes) from Microsoft
> away and the kea testserver is doing very well.
>
> We also solved the forward ddns section because we have a windows ads up
> and running and would like to leave that in redmonds hands.
>
>
>
> Now we want to also have reverse ddns.
>
> Section 10.2.4.1 describes how – but not how often and how detailed J
>
>
>
> "DhcpDdns": {
>
>     "reverse-ddns": {
>
>         "ddns-domains": [
>
>             *{*
>
> *               "name": "1.0.0.0.8.B.D.0.1.0.0.2.ip6.arpa.",*
>
> *               "key-name": "",*
>
>                *"dns-servers": [*
>
> *               ]*
>
> *            }*
>
>         ]
>
>     }
>
> }
>
>
>
> Most of the scopes are 10.32.x.y up to 10.49.x.y.
>
> What would be the best way to tell kea the reverse ddns needs?
>
>
>
> Do I just need the 10.in-addr.arpa. or do I have to split it up more
> detailed?
>
> The devices all have the same domain-name “example.com”.
>
>
>
> Mit freundlichen Grüßen / With kind regards
>
>
> Sebastian Wessel
> Specialist IT Systems
>
> ____________________________________________________________
> ______________________
>
> Sebastian Wessel
> Takko Holding GmbH
> Alfred-Krupp-Straße 21 · 48291 Telgte · Germany
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> <+49%201522%201811579> · F +49 2504 923 797 <+49%202504%20923797>
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>
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