Motorola MG7540 User Manual page 59

6.) In the field PassPhrase, enter a sequence of letters. This can be words,
names, or an arbitrary sequence.
7.) Click the button Generate WEP Keys.
8.) In the WEP Encryption pulldown, select either WEP-64 bit or WEP-128 bit.
(WEP-128 offers more security).
9.) Select Enabled on the Show Keys pulldown.
10.) Note the setting of Current Network Key. This determines which Network
Key you need to use on your clients. You can change this value by selecting
a different number in the pulldown.
11.) Click the Save button at the top of the WEP Security Settings box.
12.) Note the Network Key that you selected, and save this for use on your
clients. (Also store a copy in a safe place, such as on a piece of paper taped
to the bottom of your device).
About Wireless Security
There are two basic wireless security modes: WPA and WEP. There are two
versions of WPA: WPA and WPA2. When configured as part of a typical home or
small office network, WPA and WPA2 require a Pre-Shared Key, or PSK. These
modes are typically called WPA-PSK and WPA2-PSK, respectively, though
sometimes they're just called WPA and WPA2. You can enable either WPA-PSK or
WPA2-PSK alone, or you can enable both WPA-PSK and WPA2-PSK together. By
default, your Cable Modem/Router has WPA2-PSK with AES encryption enabled.
You will only need to change the security mode if you have a device in your
wireless network that only supports WEP or WPA-PSK with TKIP encryption. If you
want an unsecured network, disable all security methods.