Add new subnet on multi-homed hosts

[Harry Putnam]

Barry Margolin <barmar at alum.mit.edu> writes:

> We need to see the named.conf file to tell whether you're loading 
> db.192.168.1 into the correct zone.

The setup has changed since I posted the previous message but the
problem persists.  The current setup consist of 2 subnets
192.168.0/24
192.168.1/24

The diagram for clarity:
(All addresses have prefix 192.168)

                     INTERNET
                       | (Dynamic IP)
                       |
                    NETGEAR (consumer grade router)
 reader                | 0.20                   fwobsd
  --------------------------------------------------
  | 0.4            | 0.3          | 0.5            | 0.19
  |                |              |                |  
[ m1 ]           [ m2 ]         [ m3 ]           [ m4 ]
  | 1.2                                            | 1.1
  |__________________ chintzy hub _________________|
rdmz                                             fwdmz


I've added a few things to the diagram to ease conversation.

Machine1 (m1) and Machine4  (m4) are multi-homed .. 2 nics each
Neither has internal forwarding enabled
The second nics are on network 192,168.1/24  ... all others are on
192.168.0/24

m1:                      m4:
reader 192.168.0.4       fwobsd 192.168.0.19
rdmz   192.168.1.2       fwdmz  192.168.1.1

The second nics are hardwired to each other thru a hub, and are not
connected to anything else.

nslookup finds all alphabetical names and all but the two 192.168.1/24
address numeric IP names  So something is wrong with db.192.168.1 for
sure and maybe more.  If db.192.168.1 looks kind of beat up, its from
trying to figure out what it needs.  In this example it is simply
ignored by named.


named.conf
==================================
options {
        directory "/var/bind";
        listen-on-v6 { none; };
        listen-on { LOCALHOST; };
        listen-on { LOCALNETS; };
        pid-file "/var/run/named/named.pid";
};

zone "." IN {
	type hint;
	file "named.ca";
};

zone "0.0.127.in-addr.arpa" IN {
	type master;
	file "pri/db.127.0.0";
	allow-update { none; };
	notify no;
};

//# [HP 01/29/06 08:11  My additions below here]
zone "local.lan" IN {
  type master;
  file "pri/db.local.lan";
};
zone "0.168.192.in-addr.arpa" IN {
  type master;
  file "pri/db.192.168.0";
};
zone "1.168.192.in-addr.arpa" IN {
  type master;
  file "pri/db.192.168.1";
};

========================

db.local.lan
=======================
$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
========================
$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
===========================
$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
;

192.168.1.2.      IN      PTR    rdmz.local.lan.
192.168.1.1.      IN      PTR    fwdmz.local.lan.