[KLUG Members] I have some Proxy question

[Scott Van Singel]

Good People of the KLUG

I have some questions and problems I was wondering if you could help out. 
I am the Network guy for a public school system, we have a large network (1,100 Pc's) and a local company donated T-1 access. 
We have one Proxy box up and running for web pages (Version 2.3.STABLE4). It works Ok but we have some interesting issues with it. 
I now have a web, and Exchange2000 server on a hot line (no firewall in front of them). 
I have 3 Public IP's that come in my network and we use the 10.X IP scheme. 
Here what I would like to do. I want to put the web  and Exchange behind a firewall (IE possibly Squid or NetFilter). I need a systems of software that I can configure IP routes into my network to a system. 
IE if 208.x.x.65 is my public IP, I need to have the firewall take all request for that iP and translate it to 10.1.1.26 for mail. 
The same goes for a IP of 208.x.x.63 that I need to route it to 10.1.1.25. 

Can we use Netfilter for this or Proxy. 

One think to keep in mind we have about 800 PC's with web access, so what ever we do to change the network setting should be easy to change on the users connection. 

Thank you, 


Scott Van Singel
IT Director
Sturgis Public Schools
Phone: 616-659-1512
Email: svansingel@sturgis.k12.mi.us