IP works using a system of numeric addresses and sub-networks (subnets). IP also features the companion protocol ICMP. A new version of IP, IPv6, will someday replace the IP system currently in common usage.
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IP - Internet Protocol
IP is probably the world's single most popular network protocol. Data travels over an IP-based network in the form of packets. Each IP packet includes both a header (that specifies source, destination, and other information about the data) and the message data itself.
IP Practice Exam
These interactive pages present a series of questions and answers about IP. Test your knowledge of Internet Protocol by completing this exam.
Who Invented the Internet Protocol?
Two engineers co-authored the first research paper for what would later become Internet Protocol.
MAC - Media Access Control
MAC is a mechanism to support access control and identification of computers on an Internet Protocol (IP) network. MAC assigns a unique number to each IP network adapter called the MAC address.
ICMP
ICMP is a simple network protocol useful in IP network management and administration. All implementations of IP require an accompanying implementation of ICMP.