Help required in configuring ISA server 2000 firewall

Hi all,

I have some queries related to Microsoft ISA server
2000.

First of all I want to provide some info about my network. In my
network most of the systems are using different flavor of MS windows
and one computer (call it server1) is providing internet access to all
the other computers (clients). There is no domain and all
the systems are in same workgroup. On server windows 2000 advance
server is installed with ISA 2000 in integrated mode.

Now I want to divide the load of the server1 on two different servers
server2 and server3. I have different ideas which I will test and the
best one will certainly be used in the future.

Now I need your help in practically implementing my ideas.

The Quires are as follows

1) First and most easy one (In my view) is that I want to route the
traffic of clients connecting to ISA server on two different internet
connection on the basis of their private source IP i-e if I am using
the IP addressing scheme of 192.168.1.0 then first 128 pcs would be
route by server1 (On which ISA is installed) towards server2 and rest
of the ip would be routed towards server3.

2) Second one is one advancement in the first idea that if one server
is idle at any time other may share its load with the idle server.


3) I have noticed that even if one person is downloading some files
then the browsing of all the other user is affected badly. I want to
route the files with extensions like EXE, ZIP, RAR , Audio files,
Video files and other related files which users usually download
towards server2 and rest of the browsing is routed to server3 i-e
download of one user will not effect the speed of browsing but will
only effect the downloading speed of other user.

Last humble request is to be a little bit descriptive in reply as I am
totally newbie to Microsoft ISA server 2000. I haven't done any
configuration in ISA server 2000 before but have done similar type of
work using Cisco routers.


Thanks in Advance

Irfan Azher
Email: irfanazher@...
Web: http://www.ssuet.edu.pk/~iazher