D-Link DIR-645 User Manual page 38

Section 3 - Software Configuration
By default the wireless security of this router will be disabled. In this
next option the user can enabled or disable wireless security for the
frequency band 2.4GHz. There are two types of encryption that can be
used. WEP or WPA/WPA2.
Wireless Security Mode: WEP
Wired Equivalent Privacy (WEP) is the most basic form of encryption
that can be used for wireless networks. Even though it is known as a
'weak' security method, it is better than no security at all. Older wireless
adapter sometimes only supports WEP encryption and thus we still find
this encryption method used today.
WEP Key Length: Here the user can specify to either use a 64Bit or a
128Bit encrypted key.
Authentication:
Authentication is a process by which the router
verifies the identity of a network device that is
attempting to join the wireless network. There
are two types authentication for this device when
using WEP. Open System allows all wireless devices
to communicate with the router before they are
required to provide the encryption key needed to
gain access to the network. Shared Key requires
any wireless device attempting to communicate
with the router to provide the encryption key
needed to access the network before they are
allowed to communicate with the router.
WEP Key 1: Enter the WEP key used here. For 64-bit keys you must enter 10 hex digits into each key box. For 128-bit keys you must enter
26 hex digits into each key box. A hex digit is either a number from 0 to 9 or a letter from A to F. You may also enter any text
string into a WEP key box, in which case it will be converted into a hexadecimal key using the ASCII values of the characters.
A maximum of 5 text characters can be entered for 64-bit keys, and a maximum of 13 characters for 128-bit keys.
D-Link DIR-645 User Manual 34