Linksys WRT54GR manual Security Tab Firewall, Internet Filter, Web Filters

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Wireless-G Broadband Router with RangeBooster

The Security Tab - Firewall

The Firewall screen offers filters that block specific Internet data types and block anonymous Internet requests. Select the checkbox to enable a feature.

Firewall

SPI Firewall Protection. Enable this feature to employ Stateful Packet Inspection (SPI) for more detailed review of data packets entering your network environment.

Internet Filter

Filter Anonymous Internet Requests. When enabled, this feature keeps your network from being “pinged,” or detected, by other Internet users. It also reinforces your network security by hiding your network ports. Both functions of this feature make it more difficult for outside users to work their way into your network. This feature is enabled by default. Select Disabled to allow anonymous Internet requests.

Filter Multicast. Multicasting allows for multiple transmissions to specific recipients at the same time. If multicasting is permitted, then the Router will allow IP multicast packets to be forwarded to the appropriate computers. Select Enabled to filter multicasting, or Disabled to disable this feature.

Filter Internet NAT Redirection. This feature uses port forwarding to block access to local servers from local networked computers. Select Enabled to filter Internet NAT redirection, or Disabled to disable this feature.

Filter IDENT (Port 113). This feature keeps port 113 from being scanned by devices outside of your local network. Select Enabled to filter port 113, or Disabled to disable this feature.

Web Filters

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 the checkbox.

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

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 the checkbox.

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

Chapter 6: Configuring the Wireless-G Broadband Router with RangeBooster

Figure 5-30: Security Tab - Firewall

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The Security Tab - Firewall

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Contents Wireless- G Copyright and Trademarks How to Use This User GuideWord definition Table of Contents Appendix C Upgrading Firmware Appendix D Windows Help Appendix a TroubleshootingAppendix B Wireless Security Common Problems and Solutions Frequently Asked QuestionsRouter’s Back Panel List of Figures27 Wireless Tab Wireless MAC Filter Welcome IntroductionWhat’s in this User Guide? Wireless-G Broadband Router with RangeBooster Network Topology Planning Your Wireless NetworkAd-Hoc versus Infrastructure Mode Ssid service set identifier your wireless network’s namePlanning Your Wireless Network Network Layout Network devices Back PanelRouter’s LEDs are located on the front panel Front PanelConnecting the Wireless-G Broadband Router with RangeBooster Connecting Your Network Devices Overview Password ScreenInternet Setup Setup Tab Basic SetupPPPoE Connection Type Router IP Time Setting DDNS.com Setup Tab Ddns16 Setup Tab MAC Address Clone Setup Tab MAC Address Clone17 Setup Tab Advanced Routing Setup Tab Advanced RoutingChanges to cancel your changes Wireless Tab Basic Wireless Settings20 Wireless Tab Wireless Security WEP Wireless Tab Wireless Security22 Wireless Tab Wireless Security PSK2 Radius Wireless MAC Filter Wireless Tab Wireless MAC FilterAdvanced Wireless Wireless Tab Advanced Wireless SettingsWireless-G Broadband Router with RangeBooster Web Filters Security Tab FirewallFirewall Internet FilterInternet Access Policy Access Restrictions Tab Internet Access PolicySecurity Tab VPN Passthrough 33 Internet Policy Summary To create an Internet Access policySingle Port Forwarding Applications and Gaming Tab Single Port Forwarding36 Applications and Gaming Tab Port Range Forward Applications and Gaming Tab Port Range ForwardingApplications and Gaming Tab DMZ Applications & Gaming Tab Port Range TriggeringPort Triggering Range Management Administration Tab ManagementBackup and Restore Log Administration Tab Log42 Administration Tab Diagnostics Administration Tab DiagnosticsAdministration Tab Firmware Upgrade Administration Tab Factory DefaultsRouter Information Status Tab RouterInternet Connection Status Tab Local Network Status Tab Wireless NetworkCommon Problems and Solutions Appendix a TroubleshootingNeed to set a static IP address on a PC Wireless-G Broadband Router with RangeBooster Open a command prompt. For Windows 98SE and Me TCP Application Start and End Protocol IP Address EnabledCan’t get the Internet game, server, or application to work Wireless-G Broadband Router with RangeBooster My DSL service’s PPPoE is always disconnecting To start over, I need to set the Router to factory defaultNeed to upgrade the firmware Firmware upgrade failed, and/or the Power LED is flashingPower LED keeps flashing Is IPSec Pass-Through supported by the Router? Frequently Asked QuestionsWhere is my SecureEasySetup button? Where is the Router installed on the network?Does the Router support ICQ send file? What is Network Address Translation and what is it used for?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? What is the Ieee 802.11g standard?What is ad-hoc mode? What is the Ieee 802.11b standard?What Ieee 802.11g features are supported? What Ieee 802.11b features are supported?What is Spread Spectrum? What is ISM band?What is DSSS? What is FHSS? And what are their differences? How do I resolve issues with signal loss? What is WEP?What is a MAC Address? How do I reset the Router?Security Precautions Appendix B Wireless SecuritySecurity Threats Facing Wireless Networks Appendix B Wireless Security Wireless-G Broadband Router with RangeBooster Appendix C Upgrading Firmware Figure C-1 Upgrade FirmwareShared Resources Appendix D Windows HelpNetwork Neighborhood/My Network Places Windows 2000 or XP Instructions Windows 98SE or Me InstructionsFigure E-4 MAC Address Filter List For the Router’s Web-based UtilityAppendix D Glossary Wireless-G Broadband Router with RangeBooster Wireless-G Broadband Router with RangeBooster Wireless-G Broadband Router with RangeBooster Wireless-G Broadband Router with RangeBooster Model Appendix G SpecificationsStandards Operating Humidity Storage TempStorage Humidity Limited Warranty Appendix H Warranty InformationFCC Statement Appendix G Regulatory InformationWireless-G Broadband Router with RangeBooster Wireless-G Broadband Router with RangeBooster Wireless-G Broadband Router with RangeBooster Wireless-G Broadband Router with RangeBooster Wireless-G Broadband Router with RangeBooster Appendix J Contact Information
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