How to define views that differ only minimally?

[Marc Haber]

Hi,

Let us assume that S is a bind 9.3.4 server on Linux, authoritative
for a number N of zones (let N be around a couple of thousand). Now,
we need a small number of zones (around two or three) in different
views, like resolve foo.zone.example to 10.8.0.1 if the client is in
the 10.8.0.0/24 network, and to 85.214.68.41 if the client is
somewhere else.