User's Manual Part 2

Section 3 – Configuration
D-Link DSL-2640R User Manual 29
WEP Encryption
WEP (Wireless Encryption Protocol or Wired Equivalent Privacy)
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. Decryption of the data contained in each
packet can only be done if the both the receiver and transmitter have the
correct key.
By default authentication is disabled on the access point. To enable
WEP, select the WEP-64Bits or WEP-128Bits option, configure the
WEP Encryption Keys as desired and click the SAVE button. The
encryption key setup is described below.
Encryption Keys
WEP Keys may be configured using Hex or ASCII characters. There are
two levels of encryption available, each level requires a different number
of characters. Select Hex or ASCII from the Key Type drop-down menu.
Hex or Hexadecimal digits are defined as the numerical digits 0 – 9 and
the letters A – F (upper and lower case are recognized as the same
digit). ASCII characters include numbers and letters but no spaces. An
upper case ASCII character is NOT recognized as the same lower case
character, and therefore must be configured exactly as typed for all
wireless nodes using the access point. The length of the key depends
on the level of encryption used.
Select the Key Length from the drop-down menu. The available key
lengths are 64 or 128-bit encryption. In the spaces provided, type in Key
1, Key 2, Key 3 and Key 4. The length of the character string used of
the keys depends on the level (Key Length) of encryption selected.
Only one key can be active. The active key is selected by clicking the
radio button for the key you want to use.
Click the SAVE button when you have configured WEP as desired to put
the changes into effect.