I have DWL2100AP i can open the IP address

To enter the menu of your device follow the following directions :

Your device default IP is 192.168.0.50 - Connect the device to your computer with an ethernet cable and set up your computer IP address manually, make it 192.168.0.49 , subnet 255.255.255.0 When connection is established, enter 192.168.0.50 in your internet browser, you will be able to reach the console.