zoneref: Masters unreachable

[janl at linpro.no]

"Rune M. Jonassen" <rune.jonassen at intellinet.no> tastet:
> Everything is running smoothly except he fact that two zones will not be
> synchronized from the primary the secondary.
> The named.run on the secondary reports:
> 
> <date> <time> zoneref: Masters for secondary zone
> "kristiansand.brunstadworld.org" unreachable
> <date> <time> zoneref: Masters for secondary zone
> "kulturhuset.notteroy.kommune.no" unreachable

Of course you checked that:
- There are no typos in the masters statement?
- The masters _are_ available (use dig @master zone-name AXFR to check
  for example).
- And it works with your old bind setup?

Nicolai