How can I use a Linksys router in conjuction with a Windows 2003 Server acting as a DHCP server?

Question

I want to have a business network with the Windows Server acting as the DHCP server while using a Cable Internet connection running through a Linksys router and allowing NON business computers internet access.

I want to be able to share internet access with business network computers and non business computers.

The server should act as a DHCP server to business network computers and the Linksys router to non-business computers as well as wireless computers.

Is it possible??

Is there another way to do it?
I need the wireless internet access and need to provide internet access to personal computers that should not have access to the business network.

How can I do this?/

Answer 1

What you basically want to do is create TWO networks. One Public one Private. If it were me, I would do this.
Internet-----> Linksys ----> Server2003 ---> Private Machines

You would bring the internet to the Linksys leave DCHP running on the router for the Public Machines. IN the router settings set the servers IP address as a DMZ address. If you leave the Linksys Defaults these addresses will all be in the 192.168.1.x range 1-254 for x.

In the server set the PUBLIC/Internet side IP to the DMZ ip you set in the router. (The router IP is the gateway IP etc.)
Use a "STATIC ADDRESS" for this. One "outside" the DHCP range of the router. (Say use 192.168.1.10 for the server. Since linksys dhcp defaults start at .100 this will be outside the dhcp pool range!)

You must have two network cards in the server for this to work. *One for the Internet connection, One for LAN.

Then in the DHCP settings in the server you set the range to a totally different network say 10.0.0.X range (That is the MS defaults anyway!) and set this to use the "second ethernet card". You then connect a switch to the "Second" ethernet card in the server. Connect your LOCAL machines to that switch. The SERVER becomes the gateway. (If you need wireless for the local machines just add an Access Point -- use a different SSID and encrypt it differently and use a different channel than the Linksys.)

Now what you have is what you want TWO separated networks both connected to the internet. Clients on the Linksys can not talk to the company lan at all no way no how! But they could see the company web server (if you have one running.) Clients on the lan get to the internet via the server as the gateway!

You can get routers that do this for you -- Linksys has some business routers that will Isolate the Wireless users from the LAN (it is not the low cost ones!) This will keep ALL wireless clients from connecting to anything on the LAN, so your business machines couldn't use it wirelessly. You can also use Hot Spot controllers which allow this but again the cost is higher and the settings more complex.

Good Luck and God Bless

Answer 2

The linksys router has a DMZ (Demilitarized zone) option. The ip address of the server needs to be in this subnetwork.

Answer 3

As far as my knowledge goes you need to TURN OFF DHCP on Linksys. Go to GUI of Linksys and check for the options.