NETGEAR manual Reference Manual for the Model DG814 DSL Modem Internet Gateway, for example

Reference Manual for the Model DG814 DSL Modem Internet Gateway

IP Address	A four-byte number uniquely defining each host on the Internet. Ranges of
	addresses are assigned by Internic, an organization formed for this purpose.
	Usually written in dotted-decimal notation with periods separating the bytes
	(for example, 134.177.244.57).
IPSec	Internet Protocol Security. IPSec is a series of guidelines for securing private
	information transmitted over public networks. IPSec is a VPN method
	providing a higher level of security than PPTP.
IPX	See Internet Packet Exchange.
ISP	Internet service provider.
Internet Packet	Novell’s internetworking protocol.
Exchange
Internet Protocol	The main internetworking protocol used in the Internet. Used in conjunction
	with the Transfer Control Protocol (TCP) to form TCP/IP.
LAN	See local area network.
Local Area Network	LAN. A communications network serving users within a limited area, such as
	one floor of a building. A LAN typically connects multiple personal
	computers and shared network devices such as storage and printers. Although
	many technologies exist to implement a LAN, Ethernet is the most common
	for connecting personal computers.
MAC address	Media Access Control address. A unique 48-bit hardware address assigned to
	every Ethernet node. Usually written in the form 01:23:45:67:89:ab.
MSB	See Most Significant Bit or Most Significant Byte.
MRU	See Maximum Receive Unit.
Maximum Receive	The size in bytes of the largest packet that can be sent or received.
Unit
Most Significant Bit or	The portion of a number, address, or field that is farthest left when written as a
Most Significant Byte	single number in conventional hexadecimal ordinary notation. The part of the
	number having the most value.
NAT	See Network Address Translation.
Netmask	A number that explains which part of an IP address comprises the network
	address and which part is the host address on that network. It can be
	expressed in dotted-decimal notation or as a number appended to the IP
	address. For example, a 28-bit mask starting from the MSB can be shown as
	255.255.255.192 or as /28 appended to the IP address.
2	Glossary