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An air gap is a network security measure that isolates a computer or network from unsecured networks, such as the Internet. Learn about the use, examples, and limitations of air gap in classified settings, military, financial, industrial, and other systems.
Static routing is a form of routing that uses manually-configured routing entries, rather than dynamic routing traffic. Learn how static routing works, when it is used, what are its advantages and disadvantages, and how to configure it on Linux and Cisco routers.
Learn what a router is, how it works, and what types of routers exist in computing and networking. A router is a device that forwards data packets between computer networks, such as the Internet, using routing protocols and tables.
A default gateway is the node in a network that forwards packets to other networks when no other route matches the destination IP address. Learn how default gateways work, how to configure them, and see examples of single and multi-router networks.
A routing protocol specifies how routers communicate with each other to distribute information that enables them to select paths between nodes on a computer network. Learn about the types, characteristics, and examples of routing protocols, such as OSPF, RIP, BGP, and more.
Wi-Fi Protected Setup (WPS) is a network security standard to create a secure wireless home network. It allows users to connect devices to the Wi-Fi network without using any password, but has a security flaw that can be exploited by a remote attacker.
Routing is the process of selecting a path for traffic in a network or between or across multiple networks. Learn about different types of routing schemes (unicast, broadcast, multicast, anycast) and algorithms (distance vector, link-state, path-vector) and their applications.
Learn about the equipment and functions of a cable modem termination system (CMTS), which provides data services to cable subscribers via coaxial cable and fiber optics. Find out how CMTS connects to the Internet, modulates and demodulates signals, and supports DOCSIS standards.