How to setup WEP on an SMCD3GN Wireless Cable Modem Gateway

How to setup WEP on an SMCD3GN Wireless Cable Modem Gateway


1. Log into the router. To do this you will need to open your web browser and enter http://192.168.0.1


2. You will need to log in to the router. The Default Username and Password:
User Login
Username: cusadmin.
Password: password

3. Next click on [WIRELESS] link on the Side Navigation bar.

4. Select [WEP] from the [SecurityMode] drop-down menu.


You can choose between standard 64-bit or 12b-bit encryption keys. Below are the configuration options for 64-bit WEP. A passphrase or a manual key can be used

NOTE: To enter a manual WEP key you will need to enter hexadecimal values (A-F and 0-9). Example: 64-bit hexadecimal keys are exactly 10 characters in length. (123654ACDE is a valid strong of 10 characters for 64-bit encryption).


To automatically generate a 64-bit WEP key, enter in a Passphrase (keyword- ex. homegateway). And click the [Generate Keys] option. Once you do this, the Gateway will dynamically generate 4 keys. Simply configure the Default Key to the one key that you will be using across your network.

5. Select the Open System, Shared Key or Automatic from the [Authentication] drop-down menu. Note in most cases you want it set to Automatic.


For more security, you can use 128-bit WEP encryption. To use this mode, select the [128 bit (26 hex digits)] from theWEP Key Length drop-down menu option and the configuration section will be displayed. 128-bit encryption requires a longer key than 64-bit encryption. Keys are defined by entering in a strong in HEX (hexadecimal- using characters 0-9, A-F) or ASCII (American Standard Code for Information Interchange – alphanumeric characters) format. ASCII format is provided so you can enter a string that is easier to remember. The ASCII string is converted to HEX for use over the network. You can manually enter in the 26-digit hexadecimal key.

Example: 128-bit hexadecimal keys are exactly 26 characters in length. ( 234FEDCBA12340013333389319 is a valid string of 26 characters for 128-bit encryption).


NOTE: If you are having a difficult time getting the wireless connection up after enabling WEP- Please confirm that you have configured the SAME WEP key on both the Gateway and Client card.

6. Click the [Apply] button to save your settings