NETGEAR WG102 - ProSafe Wireless Access Point Reference Manual page 106

Reference Manual for the NETGEAR ProSafe 802.11g Wireless Access Point WG102
For example, when a web page is downloaded from a web server, the TCP program layer in that server
divides the file into packets, numbers the packets, and then forwards them individually to the IP program
layer. Although each packet has the same destination IP address, it may get routed differently through the
network. At the other end, TCP reassembles the individual packets and waits until they have all arrived to
forward them as a single file.
TCP/IP
The underlying technology behind the Internet and communications between computers in a network. The
first part, TCP, is the transport part, which matches the size of the messages on either end and guarantees that
the correct message has been received. The IP part is the user's computer address on a network. Every
computer in a TCP/IP network has its own IP address that is either dynamically assigned at startup or
permanently assigned. All TCP/IP messages contain the address of the destination network as well as the
address of the destination station. This enables TCP/IP messages to be transmitted to multiple networks
(subnets) within an organization or worldwide.
TKIP
A security feature that is a WEP enhancement: Temporal Key Integrity Protocol and Message Integrity
Check (MIC) is a modification of WEP to defend against known attacks (WEP+ four patches for key
mixing, message integrity, rekeying, initialization vector protection)
USB (Universal Serial Bus)
A high-speed bidirectional serial connection between a PC and a peripheral that transmits data at the rate of
12 megabits per second. The new USB 2.0 specification provides a data rate of up to 480 Mbps, compared to
standard USB at only 12 Mbps. 1394, FireWire and iLink all provide a bandwidth of up to 400 Mbps.
VLAN (Virtual LAN) IEEE 802.1Q
The VLAN standard is defined by the IEEE. Short for virtual LAN, a network of computers that behave as if
they are connected to the same wire even though they may actually be physically located on different
segments of a LAN. VLANs are configured through software rather than hardware, which makes them
extremely flexible. VLANs are very useful for user/host management, bandwidth allocation and resource
optimization.
VoIP (Voice over IP)
Voice transmission using Internet Protocol to create digital packets distributed over the Internet. VoIP can be
less expensive than voice transmission using standard analog packets over POTS (Plain Old Telephone
Service).
VPN (Virtual Private Network)
A type of technology designed to increase the security of information transferred over the Internet. VPN can
work with either wired or wireless networks, as well as with dial-up connections over POTS. VPN creates a
Glossary
12
November 2005