Appendix A
Glossary
LAN
Locan Area Network (LAN) connects computers and peripherals together in an office or a campus to allow the computers to access each other and other common peripherals.
LEDs
Abbreviation of light emitting diode, an electronic device that lights up when electricity is passed through it. LEDs are usually red, but the
Mac Address
Short for Media Access Control address, a hardware address that uniquely identifies each node on a network.
Network Address Translation (NAT)
Described by Whatis.com as the translation of an Internet Protocol address used within one network to a different IP address known within another network. One network is designated the inside network and the other is the outside. Typically, a company 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 provides security since each outgoing or incoming request must undergo a translation process that also offers the chance to qualify or authenticate the request or match it with a previous request. NAT also conserves the number of global IP addresses that a company uses and permits the use of a single IP address to interface with the world.
Network Administrator
The person responsible for installing and maintaining a company’s network equipment, and also insuring that network resources (such as servers and the applications running on them) are consistently available and performing
well. In terms of Enterasys Networks products, this person physically installs Aurorean Policy Servers and Aurorean Network Gateways, distributes Aurorean Client Software to remote users, and runs RiverMaster software on his/her computer to manage the entire VPN.
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