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Network Address Translation (NAT)

A methodology that translates an Internet Protocol address (IP address) used within one network to a different IP address known within another network. One network is designated the inside network and the other the outside. Typically, an organization maps its local inside network addresses to one or more global outside IP addresses and unmaps the global IP addresses on incoming packets back into local IP addresses. This helps ensure security since each outgoing or incoming request must go through a translation process that offers the opportunity to qualify or authenticate the request or match it to a previous request. NAT also allows an organization to use a single IP address in its communication with the world.

NetBEUI (Network BIOS Enhanced User Interface)

This standard transport protocol provides a set of rules that an operating system can use to control how computers on small and medium networks talk to each other. Although NetBEUI is efficient for small workgroups, but is not routable, and is a more broadcast-based protocol than other transports protocols, e.g. IPX or TCP/IP. Thus networks running NetBEUI can become clogged with packets if there are more than 20 networked computers.

Network Interface Card (NIC)

An add-in board that enables a computer to connect to some form of computer network.

NextGen

This term, used in the cellular industry, refers to networks that provide capabilities that are beyond the means of a 2G network. 2.5G and 2.75G are examples of a NextGen networks.

See also 2G.

See also 2.5G.

See also 2.75G.

Node

An individual computer / machine or address on a network.

Notebook

The manufacturing sector usually refers to a lightweight laptop computer, as a "notebook computer."

See also Laptop.

Null-modem Serial Cable

A cable that connects two computers together via their serial ports; such a connection allows the two machines to communicate. Some network hardware manufacturers, such as hubs and routers, include serial ports for programming their devices. A null-modem cable is used as the communication pathway. Physically, a null-modem cable is just a modem cable with a couple of connections reversed.



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Going Wi-Fi. A Practical Guide to Planning and Building an 802.11 Network
Going Wi-Fi: A Practical Guide to Planning and Building an 802.11 Network
ISBN: 1578203015
EAN: 2147483647
Year: 2003
Pages: 273

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