User`s guide

44 Aurorean Network Gateway-1100 User’s Guide
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 ANG-1102/1105
uses green LEDs. The LEDs are used to indicators.
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.