Bridge for a public and private LANs

I have the following two networks:

Network 1 (private): Class C network:
  Server: Intel P4 processor, with Win2K Server (AD
installed,through which, it administers access and permissions for
users and files, I think) Also this one is the gateway for SOME of
this other machines...
  ...machines with OSs ranging from Win95 to Win2000, from Pentium
MMXs to P-IIIs processsors and all cards are Ethernet 100.
  
  Subnet Mask: 255.255.255.0

  All class C network machines communicate with each other through
an Encore 10BaseT switch.

Network 2: IP numbers ranging from 182.168.xxx.xxx (Gateway for this
next ones)
    .
    .
    .
    to 182.168.xxx.xxx (Server)

  Subnet Mask: 255.255.255.0
 
  All Network 2 machines communicate with each other through a
NetGear 100 BaseTX switch.


   Then, up front, there is a Linux Fedora Core 1 (Bridge) installed on
an Intel P4 processor machine. This machine has 3 Ethernet cards
whose IPs have been configured manually!, eth0: 192.168.10.2; eth1:
192.168.0.254 hooked up to the Encore switch of network 1; and
finally, eth2: a public IP (number that appears as gateway for network
2 machines above!)

A Billion ADSL modem/router is connected to eth0 for internet
access,and... serves both networks. Hope you understand... For better
understanding ...


Internet-----ADSLmodem/router(Billion 711CE)----Linux Fedora
Core1----Network1
|
(w/server)
|
    |
    |
    Network 2(w/server)

Both networks have access to a common folder in the Linux machine. To
nothing more to that respect.

I am trying to make network 1 more efficient (fast in all sense) (I am
not supposed to touch network 2, but in the near future!. I know first
I have to get a faster switch for network 1. What other options to
make it more efficient in terms of speed, access, and sharing of files
do i have for my network 1 (class C).

Your help, suggestions, and comments will be much appreciated.

Thanks.

Alex.<!-- ~MESSAGE_AFTER~ -->

 > Network 2: IP numbers ranging from 182.168.xxx.xxx (Gateway for this
 > next ones)
   > .
   > .
   > .
   > to 182.168.xxx.xxx (Server)

are both 182.168.xxx.xxx or is it 182.168.xxx.xxx and 182.168.yyy.xxx?

And are you sure that it is 182? 182 is an IANA net. I think you want to
use 192.168.xxx.yyy (otherwise you isp's router will drop your packets)

 > eth0: 192.168.10.2;
  > eth1: 192.168.0.254 hooked up to the Encore switch of network 1; and
 > eth2: a public IP

is the routing and forwarding between th interfaces set up corretly?

 > A Billion ADSL modem/router is connected to eth0 for internet
 > access,and... serves both networks. Hope you understand... For better
 > understanding ...

ok, if i understood crrectly:
Internet to Modem, Modem to Linux, Linux to (network1, network2)

thats ok, makes sense.

 > Both networks have access to a common folder in the Linux machine. To
 > nothing more to that respect.

 > I am trying to make network 1 more efficient (fast in all sense) (I am
 > not supposed to touch network 2, but in the near future!. I know first
 > I have to get a faster switch for network 1. What other options to
 > make it more efficient in terms of speed, access, and sharing of files
 > do i have for my network 1 (class C).

faster nics, faster switch, faster cpu, more ram

 > Your help, suggestions, and comments will be much appreciated.

regards, enno
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