Linksys WAG54GS manual Security Firewall, Security VPN Passthrough

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Chapter 4

Advanced Configuration

sends the next DTIM with a DTIM Interval value. Its clients hear the beacons and awaken to receive the broadcast and multicast messages. The default value is 1.

Fragmentation Threshold  This value specifies the maximum size for a packet before data is fragmented into multiple packets. If you experience a high packet error rate, you may slightly increase the Fragmentation Threshold. Setting the Fragmentation Threshold too low may result in poor network performance. Only minor reduction of the default value is recommended. In most cases, it should remain at its default value of 2346.

RTS Threshold  Should you encounter inconsistent data flow, only minor reduction of the default, 2346, is recommended. If a network packet is smaller than the preset RTS threshold size, the RTS/CTS mechanism will not be enabled. The Gateway sends Request to Send (RTS) frames to a particular receiving station and negotiates the sending of a data frame. After receiving an RTS, the wireless station responds with a Clear to Send (CTS) frame to acknowledge the right to begin transmission. The RTS Threshold value should remain at its default value of 2346.

Click Save Settings to apply your changes, or click Cancel Changes to cancel your changes.

Security > Firewall

The Firewall screen is used to configure a firewall that can filter out various types of unwanted traffic on the Gateway’s local network.

Security > Firewall

Firewall

SPI Firewall Protection  To use firewall protection, keep the default selection, Enable. To turn off firewall protection, select Disable.

Additional Filters

Filter Proxy  Use of WAN proxy servers may compromise the Gateway’s security. Denying Proxy will disable access to any WAN proxy servers. Select Filter Proxy to enable proxy filtering. Deselect the feature to allow proxy access.

Filter Java Applets  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. Select Filter Java Applets to enable Java filtering. Deselect the feature to allow Java usage.

Filter Cookies  A cookie is data stored on your computer and used by Internet sites when you interact with them. Select Filter Cookies to filter cookies. Deselect the feature to allow cookie usage.

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. Select Filter ActiveX to enable ActiveX filtering. Deselect the feature to allow ActiveX usage.

Block WAN Requests

Block Anonymous Internet Requests  This feature makes it more difficult for outside users to work their way into your network. This feature is selected by default. Deselect the feature to allow anonymous Internet requests.

Click Save Settings to apply your changes, or click Cancel Changes to cancel your changes.

Security > VPN Passthrough

The VPN Passthrough screen allows you to enable VPN tunnels using IPSec, PPTP, or L2TP protocols to pass through the Gateway’s firewall.

Security > VPN Passthrough

VPN Passthrough

IPSec Passthrough  Internet Protocol Security (IPSec) is a suite of protocols used to implement secure exchange of packets at the IP layer. To allow IPSec tunnels to pass through the Gateway, keep the default, Enable.

PPTP Passthrough  Point-to-Point Tunneling Protocol (PPTP) allows the Point-to-Point Protocol (PPP) to be tunneled through an IP network. To allow PPTP tunnels to pass through the Gateway, keep the default, Enable.

Wireless-G ADSL Gateway with SpeedBooster

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Contents User Guide Icon Descriptions About This GuideOnline Resources Copyright and TrademarksTable of Contents Appendix D Regulatory Information Back Panel Chapter Product OverviewFront Panel Additional Security Tips Chapter Wireless Security ChecklistGeneral Network Security Guidelines Connection InstallationSetup How to Access the Web-Based Utility Chapter Advanced ConfigurationSetup Basic Setup Internet SetupPPPoE Settings PPPoA SettingsRFC 2364 PPPoA RFC 2516 PPPoEBridge Mode Only IP SettingsRFC 1483 Routed IPoAOptional Settings Network SetupNetwork Address Server Settings Dhcp Gateway IPTime Settings Setup DdnsDdns Service LanguageAdvanced Routing Setup Advanced RoutingDynamic Routing Static RoutingWireless Wireless Security Wireless Basic Wireless SettingsWireless Network Wireless SecurityWireless Network Access Wireless Wireless AccessWPA2-Mixed WPA-PersonalMAC Address Filter List Advanced WirelessSecurity VPN Passthrough Security FirewallSummary Internet Access PolicySingle Port Forwarding Applications and Gaming Single Port ForwardingApplications and Gaming Port Range Forwarding Applications and Gaming DMZ Applications & Gaming Port Range TriggeringPort Range Forwarding Port Range TriggeringApplication-based QoS QoS Quality of ServiceApplications and Gaming QoS Gateway Access Administration ManagementLocal Gateway Access Remote Gateway AccessAdministration Diagnostics Administration ReportingReporting Ping TestAdministration Firmware Upgrade Administration Backup & RestoreAdministration Factory Defaults Status Local Network Status GatewayStatus DSL Status WirelessWireless PVC Connection DSL ConnectionYour computer cannot connect to the Internet Appendix a TroubleshootingWAG54GS Appendix B SpecificationsAppendix C Warranty Information FCC Statement Safety NoticesIndustry Canada Statement Avis d’Industrie CanadaПриложими Клаузи Bulgarian Denmark CE MarkingNational Restrictions Technical Documents on Product Usage RestrictionsDansk Danish Miljøinformation for kunder i EU Regulatory Information Norsk Norwegian Miljøinformasjon for kunder i EU Regulatory Information