Linksys WAG54G manual Security Tab, Firewall, Additional Filters

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Wireless-G ADSL Gateway

receiving an RTS, the wireless station responds with a Clear to Send (CTS) frame to acknowledge the right to begin transmission.

The Security Tab

Firewall

When you click the Security tab, you will see the Firewall screen. This screen contains Filters and the option to Block WAN Requests. Filters block specific Internet data types and block anonymous Internet requests. To add Firewall Protection, click Enable. If you do not want Firewall Protection, click Disable.

Additional Filters

Filter Proxy. Use of WAN proxy servers may compromise the Gateway's security. Denying Filter Proxy will disable access to any WAN proxy servers. To enable proxy filtering, click Enabled.

Filter Cookies. A cookie is data stored on your computer and used by Internet sites when you interact with them. To enable cookie filtering, click Enabled.

Filter Java Applets. Java is a programming language for websites. If you deny Java Applets, you run the risk of not having access to Internet sites created using this programming language. To enable Java Applet filtering, click Enabled.

Filter ActiveX. ActiveX is a programming language for websites. If you deny ActiveX, you run the risk of not having access to Internet sites created using this programming language. To enable ActiveX filtering, click Enabled.

Block WAN requests

Block Anonymous Internet Requests. This keeps your network from being “pinged” or detected and reinforces your network security by hiding your network ports, so it is more difficult for intruders to discover your network. Select Block Anonymous Internet Requests to block anonymous Internet requests or de- select it to allow anonymous Internet requests.

When finished making your changes on this tab, click the Save Settings button to save these changes, or click the Cancel Changes button to undo your changes.

Chapter 5: Configuring the Gateway

Figure 5-21: Firewall

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The Security Tab

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Contents Wireless- G Word definition How to Use this GuideCopyright and Trademarks Table of Contents Wireless-G Adsl Gateway Computer-to-VPN Gateway Network23 VPN Settings Summary Figure C-9 New Rule Properties Welcome IntroductionWhat’s in this Guide? Wireless-G Adsl Gateway What’s an IP Address? Planning Your NetworkGateway’s Functions IP AddressesDynamic IP Addresses What is a VPN?Dhcp Dynamic Host Configuration Protocol Servers VPN Gateway to VPN Gateway Why do I need a VPN?Data Sniffing MAC Address SpoofingBack Panel Getting to Know the Wireless-G Adsl GatewayInternet Front PanelIndication of any network activity While establishing the Adsl connectionOverview Connecting the Wireless-G Adsl GatewayEthernet Connection Wired Connection to a ComputerWireless Connection to a Computer Security Configuring the GatewaySetup WirelessStatus Access RestrictionsAdministration Applications & GamingMultiplexing Select LLC or VC , depending on your ISP How to Access the Web-based UtilitySetup Tab Internet SetupVirtual Circuit Enter the VPI and VCI ranges in the fields RFC 1483 Bridged Dynamic IPStatic IP RFC 2516 PPPoE RFC 1483 RoutedRFC 2364 PPPoA Bridged Mode OnlyNetwork Setup Optional Settings Required by some ISPsTZO.com Ddns TabDynDNS.org Advanced Routing Advanced Routing Tab13 Routing Table Wireless Network Wireless TabBasic Wireless Settings Tab 15 WPA Pre-Shared Key Wireless Security Tab17 WEP Wireless Network Access Wireless Access TabAdvanced Wireless Advanced Wireless Settings TabAdditional Filters Security TabFirewall 22 VPN Local Security Gateway24 Manual Key Management Manual26 Advanced VPN Tunnel Setup Advanced VPN Tunnel SetupConfiguring the Gateway Security Tab Internet Access Access Restrictions Tab29 List of PCs Port Range Forwarding Applications and Gaming TabSingle Port Forwarding 33 Port Triggering Port TriggeringApplication-based QoS This setting allows you to specify traffic queue priorityAdvanced QoS Management Administration TabGateway Access Email Alerts ReportingUPnP Ping Test DiagnosticsBackup&Restore Factory DefaultsUpgrade from LAN Firmware UpgradeReboot Internet Connections Status TabGateway Gateway Information45 Local Network Local Network47 Wireless 49 DSL Connection DSL ConnectionNeed to set a static IP address on a computer Appendix a TroubleshootingCommon Problems and Solutions Want to test my Internet connection Wireless-G Adsl Gateway Wireless-G Adsl Gateway IP Address TCP UDPCan’t get the Internet game, server, or application to work My DSL service’s PPPoE is always disconnecting To start over, I need to set the Gateway to factory defaultNeed to upgrade the firmware Firmware upgrade failed, and/or the Power LED is flashingPower LED flashes continuously Does the Gateway support IPX or AppleTalk? Frequently Asked QuestionsWhere is the Gateway installed on the network? Is IPSec Passthrough supported by the Gateway?Does the Gateway support ICQ send file? Is the Gateway cross-platform compatible? What is DMZ Hosting?What are the advanced features of the Gateway? Will the Gateway function in a Macintosh environment?What is infrastructure mode? What is the Ieee 802.11g standard?What Ieee 802.11b and 802.11g features are supported? What is ad-hoc mode?What is DSSS? What is FHSS? And what are their differences? What is the ISM band?What is Spread Spectrum? How do I resolve issues with signal loss? What is WEP?What is a MAC Address? How do I reset the Gateway?Important Information for Wireless Products Appendix B Wireless SecurityWireless-G Adsl Gateway Wireless-G Adsl Gateway WAG54G EnvironmentFilter List 1 win-Router How to Establish a Secure IPSec TunnelCreate an IPSec Policy Build Filter ListsFigure C-4 IP Filter LIst Filter List 2 Router -winFigure C-7 IP Filter List Tunnel 1 win-Router Configure Individual Tunnel RulesFigure C-13 Authentication Methods Tunnel 2 Router-win Figure C-16 Tunnel Setting TabFigure C-19 IP Filter List Tab Figure C-22 Preshared Key Figure C-25 Connection Type Assign New IPSec PolicyFigure C-28 VPN Tab Create a Tunnel Through the Web-Based UtilityWindows 98 or Me Instructions Figure D-1 IP Configuration ScreenFigure D-3 MAC Address/Physical Address Windows 2000 or XP InstructionsAppendix E Upgrading Firmware Upgrade from WANAppendix F Glossary Wireless-G Adsl Gateway Wireless-G Adsl Gateway Wireless-G Adsl Gateway Wireless-G Adsl Gateway Wireless-G Adsl Gateway Operating Temp 0ºC to 40ºC Appendix G SpecificationsStandards Annex-B, WAG54G-DE UR-210% to 85% Non-Condensing Storage Temp 20ºC to 70ºC Operating HumidityStorage Humidity FCC Statement Appendix H Regulatory InformationWireless-G Adsl Gateway Radio EN 300 EMC EN 301 489-1, EN 301 Safety EN Belgium Applicable Power Levels in FranceLocation Frequency Range MHz Power Eirp Wireless-G Adsl Gateway Open the Wireless Network Connection window Appendix I Warranty Information Outside of Europe Mail Address Appendix J Contact InformationEurope Mail Address