in-addr.arpa delegation failure

[Lars Hecking]

Stephane Bortzmeyer writes:
[...] 
> IMHO, you need to go back to the drawing board and, before writing
> named.conf and zone files, deciding on a general architecture.
> 
> Who will be the master for 30.172.in-addr.arpa?
> Who will be authoritative for 30.172.in-addr.arpa?
> Who will be the master for 10.30.172.in-addr.arpa?
> Who will be authoritative for 10.30.172.in-addr.arpa?

 I've solved it, I think. The top level ns is authority and master
 for 30.172.in-addr.arpa, and the subnets are delegated to the subdomain
 name servers. Nice application of $GENERATE :)

 I prever not to set up the top level ns as a slave.