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Aurorean Network Gateway-1000 User’s Guide
Appendix A
Glossary
RiverMaster
A management application running on a Windows NT 4.0 Workstation
computer which communicates with Aurorean Policy Servers and
Aurorean Network Gateways. Using RiverMaster, a network
administrator creates user databases, sets policies for user groups, views
activity logs, and generates usage reports.
Routers
Devices which direct network traffic among LANs or WANs until the data
reaches its destination. To do this, routers communicate with one another
using dedicated protocols such as IGRP (Interior Gateway Routing Protocol)
and BGP (Border Gateway Protocol) to transfer information on network
addressing, status, and configuration.
TCP/IP
Abbreviation for Transmission Control Protocol/Internet Protocol. The suite of
communications protocols used to connect hosts on the Internet. TCP/IP uses
several protocols, the two main ones being TCP and IP. TCP/IP is built into
the UNIX operating system and is used by the Internet, making it the de facto
standard for transmitting data over networks. Even network operating
systems that have their own protocols, such as Netware, also support TCP/IP.
Tunneling
Technology that lets a network transport protocol carry information for other
protocols within its own packets. For example, by encapsulating NetBEUI
packets, IP can route them across the Internet, which is not normally possible.
Virtual Private Network (VPN)
An extension of a company’s private network that uses the resources of the
public Internet. While most private networks use dedicated lines and
equipment that are company property, a virtual private network “borrows”
resources from the Internet on an as-needed basis.