Motorola WU830G User's Guide download pdf (Page 131)

SBG900 User Guide 124

Overview Installation Troubleshooting Contact FAQ Specifications Glossary License

Configuration: Basic Gateway TCP/IP Wireless USB

NAS network access server

NAT Network Address Translation is an Internet standard for a LAN to use one set of IP addresses for

internal traffic and a second set of IP addresses for external traffic. NAT provides some security

because the IP addresses of SBG900 LAN computers are invisible on the Internet.

If NAT is enabled on the Gateway page, there is a one-to-one mapping between each public IP

address and client IP address.

NAPT Network Address Port Translation is the most common form of address translation between public and

private IP addresses. NAPT is a mapping of one public IP address to many private IP addresses.

NAPT is enabled on the Gateway page, one public IP address is mapped to an individual private

IP address for up to 245 LAN clients.

NEC National Electrical Code (United States) — The regulations for construction and installation of

electrical wiring and apparatus, suitable for mandatory application by a wide range of state and local

authorities.

network Two or more computers connected to communicate with each other. Networks have traditionally been

connected using some kind of wiring.

network driver Software packaged with a NIC that enables the computer to communicate with the NIC.

network layer Layer 3 in the OSI architecture that provides services to establish a path between open systems. The

network layer knows the address of the neighboring nodes, packages output with the correct network

address data, selects routes, and recognizes and forwards to the transport layer incoming messages

for local host domains.

NIC A network interface card converts computer data to serial data in a packet format that it sends over the

LAN. A NIC is installed in an expansion slot or can be built-in. Every Ethernet NIC has a MAC address

permanently saved in its ROM.

node On a LAN, a generic term for any network device.

On an HFC network, the interface between the fiber-optic trunk and coaxial cable feeders to

subscriber locations. A node is typically located in the subscriber neighborhood.

noise Random spurts of electrical energy or interface. May produce a salt-and-pepper pattern on a television

picture.

ohm A unit of electrical resistance.

OSI The Open Systems Interconnection reference model is an illustrative model describing how data

moves from an application on the source host through a network to an application on the destination

host. It is a conceptual framework developed by ISO that is now the primary model for intercomputer

communications. OSI is a model only; it does not define a specific networking interface.

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Motorola WU830G User's Guide Page 131