Samsung CLX-8640ND-XAA - Manual (Page 10)

Wireless Network Install Guide_ 9
• Check whether the machine is within the range of the wireless network.
• Check whether the machine is located away from obstacles that could block the wireless
signal. Remove any large metal objects between the access point (or wireless router)
and the machine. Make sure the machine and wireless access point (or wireless router)
are not separated by poles, walls, or support columns containing metal or concrete.
• Check whether the machine is located away from other electronic devices that may
interfere with the wireless signal. Many devices can interfere with the wireless signal,
including a microwave oven and some Bluetooth devices.
Appendix_Wieless Printer Security
1. WEP
IEEE 802.11 authentication
IEEE 802.11 authentication is a process of identifying an individual who is attempting to
access a wireless LAN or an Access Point. The IEEE 802.11 standard defines two types
of authentication services:
- Open System: Authentication is not used, and encryption may or may not be used,
depending on the need for data security.
- Shared Key: Authentication is used. A device that has the proper WEP key can
access the network. Samsung Network Printer supports both authentication
methods.
WEP encryption
WEP (Wired Equivalent Privacy) is a security protocol preventing an unauthorized
access to your wireless network suggested by IEEE 802.11 standard. Wireless LANs,
which are over radio waves, do not have the physical structure that can be protected
from unauthorized access and therefore are vulnerable to tampering.
WEP is designed to provide a wireless LAN with a security level equal to what is found
on a wired network. WEP encrypts the data portion of each packet exchanged on the
wireless network using a 64-bit or 128-bit WEP encryption key. Sometimes 64-bit WEP
is called 40-bit and 128-bit is 104-bit. Both 40-bit and 64-bit encryption are really the
same, as are 104-bit and 128-bit encryption, because an additional 24 initialization
vector (IV) bits are automatically added for a total of 64 bit and 128 bits. To encrypt data,
Samsung Network Printer uses four encryption keys.
You should select a key and enter the key value. The key value must be the same as the
other wireless devices or the access point of your wireless network. In 64-bit mode, each
key value is 10 hexadecimal digits (0-9 and A-F) or 5 alphanumeric characters. In 128-bit
mode, each key value is 26 hexadecimal digits or 13 alphanumeric characters. Contact
with your network administrator for this configuration.
2. WPA-Personal, WPA2-Personal
WPA announced by Wi-Fi Alliance uses WPA(WPA2)-Enterprise(802.1x) or
WPA(WPA2)-Personal(WPA-PSK) for authentication. WPA(WPA2)-Personal authorizes and
identifies users based on a secret key between wireless user (station) and wireless supplier
(access point). WPA uses TKIP (Temporal Key Integrity Protocol) and AES (Advanced
Encryption Standard) for data encryption.
Wireless-UG.book Page 20 Friday, August 13, 2010 10:32 AM