User guide

Introduction to Network Security
4 WatchGuard Firebox X Edge
Internet, the file is divided into chunks of data. Each chunk, or
packet, is separately numbered and includes the Internet address of
the destination. The individual packets for a given file may travel
different routes through the Internet. When they have all arrived,
they are reassembled into the original file. To make sure that the
packets are received at the destination, information is added to the
packets.
Data packet
The TCP and IP protocols are used for sending and receiving these
packets. TCP disassembles and reassembles the data; for example,
data that may consist of an e-mail message or a program file. IP
adds information to the packets that includes the destination and
the handling requirements.
Packets traveling on the Internet