Appendix H Glossary | Cisco Systems WRV54G manual

Wireless-G VPN Broadband Router

Appendix H: Glossary

802.11a - An IEEE wireless networking standard that specifies a maximum data transfer rate of 54Mbps and an operating frequency of 5GHz.

802.11b - An IEEE wireless networking standard that specifies a maximum data transfer rate of 11Mbps and an operating frequency of 2.4GHz.

802.11g - An IEEE wireless networking standard that specifies a maximum data transfer rate of 54Mbps, an operating frequency of 2.4GHz, and backward compatibility with 802.11b devices.

Access Point - Device that allows wireless-equipped computers and other devices to communicate with a wired network. Also used to expand the range of a wireless network.

Adapter - This is a device that adds network functionality to your PC.

Ad-hoc - A group of wireless devices communicating directly with each other (peer-to-peer) without the use of an access point.

Backbone - The part of a network that connects most of the systems and networks together, and handles the most data.

Bandwidth - The transmission capacity of a given device or network.

Beacon Interval - The frequency interval of the beacon, which is a packet broadcast by a router to synchronize a wireless network.

Bit - A binary digit.

Boot - To start a device and cause it to start executing instructions.

Bridge - A device that connects two different kinds of local networks, such as a wireless network to a wired Ethernet network.

Broadband - An always-on, fast Internet connection.

Browser - A browser is an application program that provides a way to look at and interact with all the information on the World Wide Web.

Appendix H: Glossary

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Cisco Systems WRV54G manual Appendix H Glossary

Contents

802 GHz .11g Wireless- G How to Use this Guide Copyright and TrademarksWord definition Table of Contents Wireless Security Frequently Asked Questions Introduction Welcome What’s in this Guide? Wireless-G Broadband VPN Router IP Addresses Planning your Wireless NetworkRouter’s Functions What’s an IP Address? Why do I need a VPN? Dhcp Dynamic Host Configuration Protocol ServersDynamic IP Addresses What is a VPN? VPN Router to VPN Router Wireless-G VPN Broadband Router Getting to Know the Wireless-G VPN Broadband Router Back Panel Front Panel DMZ Connecting the Wireless-G Broadband Router Overview Wired Connection to a PC Wireless Connection to a PC Wireless-G VPN Broadband Router Configuring the PCs Configuring Windows 98 and Millennium PCs Configuring Windows 2000 PCs Properties Configuring Windows XP PCs Configuring the Router SetupWireless Security Access RestrictionsAdministration Applications & Gaming Basic Setup Tab How to Access the Web-based UtilitySetup Tab Internet Setup Static Internet Connection Type Optional Settings Required by some ISPs Pptp Internet Connection Type Network Setup Ddns Tab DynDNS.org MAC Clone MAC Address Clone Tab See FigureAdvanced Routing Tab Advanced Routing Static Routing 10 Routing Table Wireless Tab Basic Wireless Settings See FigureWireless Network Wireless Security WEP See Figure Wireless Network Access See Figure 13 Wireless Network Access Advanced Wireless Settings See Figure 15 Advanced Wireless Settings Security Tab Firewall VPN 18 Manual Key Management 19 Advanced VPN Tunnel Setup WEP Access Restrictions Tab Access Restriction 23 Internet Filter Summary Applications and Gaming Tab Port Range Forwarding Port Triggering 27 Port Triggering UPnP Forwarding 28 UPnP Forwarding DMZ Administration Tab Router PasswordManagement Email Alert LogUPnP Syslog Notification Alert Log DiagnosticsNotification Queue Length General Log 33 Factory Default Information StatusRouter WAN Connections Local Network 36 Local Network 38 Wireless System Performance Appendix a Troubleshooting Common Problems and SolutionsNeed to set a static IP address on a PC Wireless-G VPN Broadband Router Wireless-G VPN Broadband Router Wireless-G VPN Broadband Router TCP UDP Can’t get the Internet game, server, or application to work To start over, I need to set the Router to factory default Need to upgrade the firmwareFirmware upgrade failed, and/or the Power LED is flashing My DSL service’s PPPoE is always disconnecting Power LED flashes continuously Is IPSec Pass-Through supported by the Router? Frequently Asked QuestionsWhere is the Router installed on the network? Does the Router support IPX or AppleTalk? What is Network Address Translation and what is it used for? Does the Router support ICQ send file? How can I block corrupted FTP downloads? Is the Router cross-platform compatible? What is DMZ Hosting?What are the advanced features of the Router? How many ports can be simultaneously forwarded? What is ad-hoc mode? What is the Ieee 802.11g standard?What Ieee 802.11b features are supported? What is infrastructure mode? What is DSSS? What is FHSS? And what are their differences? What is ISM band?What is Spread Spectrum? What is WEP? How do I reset the Router? How do I resolve issues with signal loss?Have excellent signal strength, but I cannot see my network Appendix B Wireless Security Brief OverviewWhat Are The Risks? Passive Attacks Jamming Attacks Dictionary-Building or Table Attacks Maximizing Wireless SecurityActive Attacks Man-in-the-Middle Attacks 5SSID 8WEP Wireless-G VPN Broadband Router 4GHz/802.11b and 802.11g WEP Encryption Figure B-2 WEP Environment WRV54G Build Filter Lists How to Establish a Secure IPSec TunnelCreate an IPSec Policy Filter List 1 win-router Filter List 2 router-win Figure C-4 IP Filter List Figure C-7 IP Filter List Configure Individual Tunnel Rules Tunnel 1 win-router Figure C-13 Authentication Methods Figure C-16 Tunnel Setting Tab Tunnel 2 router-win Figure C-19 IP Filter List Tab Figure C-22 Preshared Key Assign New IPSec Policy Figure C-25 Connection Type Create a Tunnel Through the Web-Based Utility Figure C-28 VPN Tab Figure D-1 IP Configuration Screen Windows 98 or Me Instructions Windows 2000 or XP Instructions Figure D-3 MAC Address/Physical Address Appendix E Snmp Functions Figure F-1 Upgrade Firmware Appendix F Upgrading Firmware Appendix G Windows Help Shared ResourcesNetwork Neighborhood/My Network Places Appendix H Glossary Wireless-G VPN Broadband Router Wireless-G VPN Broadband Router Wireless-G VPN Broadband Router Wireless-G VPN Broadband Router Wireless-G VPN Broadband Router Appendix I Specifications Transmit Power 19dBm LEDsUp to 54Mbps wireless, up to 100 Mbps LAN Appendix J Regulatory Information FCC Statement FCC Part 68 Statement Safety Notices Appendix K Warranty Information Limited Warranty Appendix L Contact Information