What are packets and routers? What is an IP address? Describe the advantages of private and public IP addresses.
A packet is one unit of binary data capable of being routed through a computer network. To improve communication performance and reliability, each message sent between two network devices is often subdivided into packets by the underlying hardware and software (About.com, 2013).
A packet is the unit of data that is routed between an origin and a destination on the Internet or any other packet-switched network. When any file (e-mail message, HTML file, Graphics Interchange Format file, Uniform Resource Locator request, and so forth) is sent from one place to another on the Internet, the Transmission Control Protocol (TCP) layer of TCP/IP divides the file into "chunks" of an efficient size for routing. Each of these packets 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 (by the TCP layer at the receiving end) (Rouse, 2007).
A Router is a device ...
The solution discusses packets, routers and IP addresses. In terms of security, private IP address is favored over public IP address. However, Public IP addresses is favored in terms of commercial benefits.