deXlan MPEG4 Security Camera User Manual


 
32
“Preamble”, either “Long preamble” or “Short preamble” defines the length of
the CRC block (Cyclic Redundancy Check is a common technique for detecting data
transmission errors) for communication between the Access Point and the roaming
wireless device. Long Preamble is the default setting. Note: High network traffic areas
should use the shorter preamble type.
“Data encryption” Checking the box to enable the data encryption. By default it is
disabled.
“Auth. Mode” Choosing one of the following modes, (Auto is the default setting)
z “Auto” – Will automatically decide the authentication mode of the wireless client.
z “Shared” – allows communication only with other devices with identical WEP
settings.
z “Open” – communicates the key across the network.
“Key length” The administrator can select the key length among 64, 128 or 256 bits.
64bits is the default setting.
“Key format” Hexadecimal or ASCII. “HEX” is the default setting.
z HEX” digits consist of the numbers 0~9 and the letters A-F.
z “ASCII” is a code for representing English letters as numbers from 0-127 except
“, <, > and space characters that are reserved.
“Network Key” Entering a key in either hexadecimal or ASCII format. When selecting
different key length, acceptable input length is listed as following:
64 bits key length: 10 Hex digits or 5 characters.
128 bites key length: 26 Hex digits or 13 characters.
256 bits key length: 58 Hex digits or 29 characters.
Note: When 22(“), 3C(<) or 3E(>) are input in network key, the key format can’t be
changed to ASCII format.