The DNS services does not support "colliding" networks.

[Raphaël Badin]

If DNS is enabled, each nodegroup corresponds to a network with a forward DNS zone and a reverse DNS zone. The reverse DNS zone file is written, not for the network itself but for the corresponding enclosing classful network. I.e if one has a 192.168.2.1/22 network, the reverse zone file is written for the enclosing classful network: 192.168.2.1/24. This will obviously conflict if there is a "colliding" network (i.e. a network which has the same enclosing classful network), for instance 192.168.3.1/22.

In order to fix this, we need to implement RFC2317 (see http://www.indelible.org/ink/classless/ for an example).

[LaMont Jones (lamont)]

See also bug #1356012, which looks to be a duplicate.

[Andres Rodriguez (andreserl)]

Hi!

We believe this is no longer an issue in the latest MAAS releases. As such, we are marking this bug report as invalid. If you believe this is still an issue, please re-open this bug report.

Thanks