D-Link DSL-2740R User Manual page 36

Section 3 - Configuration
WIRELESS SECURITY MODE - WEP
WEP (Wireless Encryption Protocol) encryption can be enabled for security
and privacy. WEP encrypts the data portion of each frame transmitted from
the wireless adapter using one of the predefined keys. The router offers 64 or
128 bit encryption with four keys available.
Select WEP Key Length from the drop-down menu. (128 bit is stronger than
64 bit.)
Specify the encryption key from the Current Network Key drop-down menu.
Enter up to four keys into the WEP Key fields.
Select the Authentication type from the drop-down menu. (Shared is better
than Open.)
Click on Apply Settings to apply settings.
D-Link DSL-2740R 36