Motorola SBG900 manual 116

Overview Installation Troubleshooting	Contact	FAQ	Specifications	Glossary	License
Configuration: Basic	Gateway	TCP/IP	Wireless USB

N

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. If
	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.

O

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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