Both networks must use the linux box as a default gateway and then add a
route for each side of the network or masquerade one side if you need
etc...etc..


thanks,
George Vieira
Network Administrator
http://www.citadelcomputer.com.au
PGP Fingerprint :       43DC 92AC 1A82 27B2 E97B  52F1 B60F 301A 38A9
A10C
PGP KeyID:              0x38A9A10C


-----Original Message-----
From: Tim Sutton [mailto:[EMAIL PROTECTED]]
Sent: Friday, September 08, 2000 4:05 PM
To: SLUG
Subject: [SLUG] Linux routing between 2 nics


Hi

I think this was brought up a couple of weeks ago, but I can't find it in
the archive, so my apologies if if retraces ground already covered. I am
trying to set up a linux box as a bridge between 2 networks:


eth0      Link encap:Ethernet  HWaddr 00:C0:DF:03:BF:1C
          inet addr:192.168.1.1  Bcast:192.168.1.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:117987 errors:2 dropped:0 overruns:0 frame:0
          TX packets:1087 errors:0 dropped:0 overruns:0 carrier:0
          collisions:123 txqueuelen:100
          Interrupt:10 Base address:0x7400

eth1      Link encap:Ethernet  HWaddr 00:50:BF:20:ED:D2
          inet addr:10.184.249.62  Bcast:10.184.249.63  Mask:255.255.255.224
          UP BROADCAST RUNNING  MTU:1500  Metric:1
          RX packets:147165 errors:0 dropped:0 overruns:0 frame:0
          TX packets:209511 errors:11 dropped:0 overruns:1 carrier:9
          collisions:114872 txqueuelen:100
          Interrupt:5 Base address:0x7000

lo        Link encap:Local Loopback
          inet addr:127.0.0.1  Mask:255.0.0.0
          UP LOOPBACK RUNNING  MTU:3924  Metric:1
          RX packets:29159 errors:0 dropped:0 overruns:0 frame:0
          TX packets:29159 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0

>From the linux box I can ping both networks, but from my 'doze clients on
the 192.168.1.0 subnet, I can only ping the linux 10.184.249.62 nic, but no
hosts beyond that. I would like to be able to see my email server which sits
in the 10.x.x.x subnet from the 192.x.x.x subnet from all the doze clients.
I presume that all the 'doze machines should have their default gateway set
to the 192.168.1.1 nic on the linx box?

How do I get linux to route the traffic from 192.x.x.x over to the 10.x.x.x
subnet? My routing table currently looks like this:


[root@cnclnx /root]# route -n
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use
Iface
192.168.1.1     0.0.0.0         255.255.255.255 UH    0      0        0 eth0
10.184.249.62   0.0.0.0         255.255.255.255 UH    0      0        0 eth1
10.184.249.32   0.0.0.0         255.255.255.224 U     0      0        0 eth1
192.168.1.0     0.0.0.0         255.255.255.0   U     0      0        0 eth0
127.0.0.0       0.0.0.0         255.0.0.0       U     0      0        0 lo
0.0.0.0         10.184.249.33   0.0.0.0         UG    1      0        0 eth1

Thanks in advance,


/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\
      TIM SUTTON - GIS TECHNICIAN
 Western Cape Nature Conservation Board
             P Bag x5014
             Stellenbosch
                 7599
         ph +27 (0)21 8891560
         fax +27 (0)21 8891523
    email [EMAIL PROTECTED]
\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/



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