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Once a packet has arrived at an organization's gateway or connection point with its
unique network number, it can be routed within the organization's internal gateways
using the subnet number as well. The subnet mask allows router know whether two
IP addresses belong to the same subnet.
TCP/IP
TCP (Transmission Control Protocol) is a set of rules (protocol) used along with the
Internet Protocol (IP) to send data in the form of message units between computers
over the Internet. While IP takes care of handling the actual delivery of the data, TCP
takes care of keeping track of the individual units of data (called packets) that a
message is divided into for efficient routing through the Internet.
WEP
WEP is the short form of Wired Equivalent Privacy. It is a security protocol for
wireless local area networks (WLANs) defined in the 802.11b standard. With less
secure physical structure than LAN, WLANs are more vulnerable to tampering. WEP
is to provide security by encrypting data over radio waves from one end point to
another.
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