Canon 802.11g 54M WLAN User Manual

It’s when both the sender and recipient share a secret key. Both units use this key for an 

extended length of time, sometimes indefinitely. Any eavesdropper that discovers the key 

may decipher all packets until the key is changed.   

The signal level indicates the strength of the signal as received at the wireless network 

interface.  

It’s the unique name shared among all points in a wireless network. The SSID must be 

identical for all points in the network. It is case sensitive and must not exceed 32 

characters. 

Transmission Control Protocol (TCP) with Internet Protocol (IP). The main internetworking 

protocol used in the Internet. 

UDP provides a procedure for application programs to send messages to other programs 

with a minimum of protocol mechanism. The protocol is transaction oriented, and delivery 

and duplicate protection is not guaranteed. Applications requiring ordered reliable delivery 

of streams of data should use the TCP. 

 

 

 

A router is a device that forwards data packets from a source to a destination. Routers 

forward data packets using IP addresses and not a MAC address. A router will forward data 

from the Internet to a particular computer on your LAN. A router also determines the best 

route that data packets should follow to ensure that the data packets are delivered properly. 

A data privacy mechanism based on a 40 bit shared key algorithm, as described in the 

IEEE 802 .11 standard. The optional cryptographic confidentiality algorithm specified by 

IEEE 802.11 used to provide data confidentiality that is subjectively equivalent to the 

confidentiality of a wired LAN medium that does not employ cryptographic techniques to 

enhance privacy. 

Wi-Fi Protected Access, a specification to improve the security level of wireless networks. It 

uses 802.1x and EAP to control network access. Temporal Key Integrity Protocol (TKIP) is