Add new subnet on multi-homed hosts

[Harry Putnam]

Setup: Gentoo Linux (kernel-2.6.15)
       bind-9.3.2

Running an authoritative name server on a small home lan as training
exercise. And using DNS and Bind 4th ed as a guide.

I just added a sort of dmz logging machine on a different subnet.

192.168.0,0
192.168.1.0 (newly added)

And I guess I'm going to a 192.168/16  from 192.168.0/24

A quick sketch of this network(There are more hosts on it
but for simplicity):

(All have prefix 192.168)

                     INTERNET
                       | (Dynamic IP)
                       |
                    NETGEAR (consumer grade router)
  --------------------------------------------------
  | 0.4            | 0.3          | 0.4            | 0.19
  |                |              |                |  
[ m1 ]           [ m2 ]         [ m3 ]           [ m4 ]
  | 1.2                                            | 1.1
  |________________________________________________|

Or I can stand some coaching on that.  But using a different subnet
makes the dmz operation easy to config and the linked multi-homed
hosts don't have confusion over which address is the main one on that
host.

That is I don't fire up a browser on 192.168.0.4 and 192.168.1.2 tries
to run the browser.  Both addresses are on 
reader.local.lan (rdmz.local.lan)

0.19
1.1 in the diagram is fwobsd.local.lan (fwdmz.local.lan)

the 1.1 subnet is just 2 addresses that link the dmz machine to
another so it can be accessed via ssh with out involving its external
address which is in 0.0 network.  fwobsd.local.lan is sent a copy of
all traffic that comes to NETGEAR

The ports on NETGEAR are switched.

What I'm not understanding is how all this is reflected in the zone
files.  I tried to use the movie.edu domain as example but must have
gone astray somewhere.

nslookup gives expected output for reader or fwobsd
                                   rdmz      fwdmz

And all the IP numbers except 192.168.1.2 and 1.1

   nslookup rdmz
  Server:         127.0.0.1
  Address:        127.0.0.1#53

  Name:   rdmz.local.lan
  Address: 192.168.1.2

But looking up by Numeric IP is another matter:

   nslookup 192.168.1.2
  Server:         127.0.0.1
  Address:        127.0.0.1#53

  ** server can't find 2.1.168.192.in-addr.arpa: NXDOMAIN

Named doesn't output any errors on startup when my zone files are
loaded. They appear below in order: 
  db.local.lan 
  db.192.168.0
  db.192.168.1
  db.127.0.0

db.local.lan
======== 8< snip ============================
$TTL 1D
@       IN SOA    reader.local.lan.  hostmaster (
                        200405191 ; serial
                        8H        ; refresh
                        4H        ; retry
                        4W        ; expire
                        1D )      ; minimum
;; Nameserver (The name '@' is implied)
           IN   NS  reader
;; smtp hub (The name '@' is implied)
           IN   MX    10 reader
;; addresses for the canonical names
localhost  IN   A     127.0.0.1
ansil      IN   A     192.168.0.21
bjp        IN   A     192.168.0.16
fw         IN   A     192.168.0.20
fwobsd     IN   A     192.168.0.19
           IN   A     192.168.1.1	
harvey     IN   A     192.168.0.22
mob2       IN   A     192.168.0.3
reader     IN   A     192.168.0.4
           IN   A     192.168.1.2
wap        IN   A     192.168.0.50

;;   aliases
smtp       IN   CNAME reader
www        IN   CNAME reader
tic        IN   CNAME reader

;;   interface   specific   addresses
fwdmz      IN   A      192.168.1.1
rdmz       IN   A      192.168.1.2

db.192.168.0
============ 8< snip ==================
$TTL 1D 
@         IN SOA  reader.local.lan. reader.reader.local.lan. (
              200405190  ; serial
              28800      ; refresh (8 hours)
              14400      ; retry (4 hours)
              2419200    ; expire (4 weeks)
              86400      ; minimum (1 day)
              )
;
; Name servers (The name '@' is implied)
;
          IN  NS        reader.local.lan.
;
; Addresses point to canonical names
;

3         IN   PTR      mob2.local.lan.
4         IN   PTR      reader.local.lan.
16        IN   PTR      bjp.local.lan.
19        IN   PTR      fwobsd.local.lan.
20        IN   PTR      fw.local.lan.
21        IN   PTR      ansil.local.lan.
22        IN   PTR      harvey.local.lan.
50        IN   PTR      wap.local.lan.

db.192.168.1
============ 8< snip =================
$TTL 1D 
@       IN  SOA  reader.local.lan. reader.reader.local.lan. (
              200405190  ; serial
              28800      ; refresh (8 hours)
              14400      ; retry (4 hours)
              2419200    ; expire (4 weeks)
              86400      ; minimum (1 day)
              )
;
; Name servers (The name '@' is implied)
;
        IN  NS     reader
;
; Addresses point to canonical names
;

2       IN  PTR	   rdmz.local.lan.
1       IN  PTR    fwdmz.local.lan.

db.127.0.0
============= 8< snip ===========
$TTL 1W
@      IN  SOA    reader.local.lan. reader.reader.local.lan. (
                     2002081601 ; serial
                     3H         ; refresh
                     15M        ; retry
                     1W         ; expiry
                     1D )       ; minimum

       IN  NS    reader.local.lan.
1      IN  PTR   localhost.