Views and forwarding (Bind 9.1.2)

[Nico De Ranter]

Howdy,

we have a split-brain DNS setup whereby the externaly available
DNS information is completely different as the internal information
(we use unrouteable addresses internaly).  We have 2 DNS servers
available for the Internet, say (e1, e2) and 2 for the internal network, say (i1,i2).
Unfortunately there are a number of portables that need to be
able to connect internaly using DNS servers i1 and i2 but they
also need to be able to connect to the Internet when outside the
company (using either e1 and e2 or the DNS servers provided by the
ISP).  It is trivial to supply the internal DNS servers through DHCP
when they are connected directly however as far as I know DNS servers
are not supplied automaticaly when connecting to the Internet through
a modem.  Needless to say my users don't like having to change DNS
servers every time they login from a different place.

I'm trying to solve this by using views on e1 and e2 so the portable
users will get the correct information depending on whether they connect
from inside our network or from the Internet.  However, 1) I wan't to keep
the authoritive info for the internal network on i1 and 2) we have a large
number of internal networks (growing every day) and I don't want
to create a "zone" statement for every one of those networks containing 
only a "forwarders" statement.  Is there any way to convince e1/e2 that
*all* queries coming from inside our network should simply be forwarded
to i1/i2?  Or is there another simpler way to do this (I do not believe
the combination split-brain DNS / roaming portables is a unique
situation :-)

Thanks in advance,

Nico


---------------------------------------------------------
 "It has been said that there are only two businesses that
  refer to customers as users: illegal drug trade and
               the computer industry." 
---------------------------------------------------------
Nico De Ranter
Sony Service Center (SDCE/NEE-B)
Sint Stevens Woluwestraat 55 (Rue de Woluwe-Saint-Etienne)
1130 Brussel (Bruxelles), Belgium, Europe, Earth
Telephone: +32 2 724 86 41 Telefax: +32 2 726 26 86
e-mail: nico.deranter at sonycom.com