Linksys WRT100 manual Security Firewall, Advanced Wireless

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Chapter 3

Advanced Configuration

Advanced Wireless

AP Isolation  This isolates all wireless clients and wireless devices on your network from each other. Wireless devices will be able to communicate with the Router but not with each other. To use this function, select Enabled. AP Isolation is disabled by default.

Frame Burst  Enabling this option should provide your network with greater performance, depending on the manufacturer of your wireless products. To use this option, keep the default, Enabled. Otherwise, select Disabled.

Authentication Type  The default is set to Auto, which allows either Open System or Shared Key authentication to be used. With Open System authentication, the sender and the recipient do NOT use a WEP key for authentication. With Shared Key authentication, the sender and recipient use a WEP key for authentication. Select Shared Key to only use Shared Key authentication.

Basic Rate  The Basic Rate setting is not actually one rate of transmission but a series of rates at which the Router can transmit. The Router will advertise its Basic Rate to the other wireless devices in your network, so they know which rates will be used. The Router will also advertise that it will automatically select the best rate for transmission. The default setting is Default, when the Router can transmit at all standard wireless rates (1-2Mbps, 5.5Mbps, 11Mbps, 18Mbps, and 24Mbps). Other options are 1-2Mbps, for use with older wireless technology, and All, when the Router can transmit at all wireless rates. The Basic Rate is not the actual rate of data transmission. If you want to specify the Router’s rate of data transmission, configure the Transmission Rate setting.

Transmission Rate  The rate of data transmission should be set depending on the speed of your wireless network. You can select from a range of transmission speeds, or you can select Auto to have the Router automatically use the fastest possible data rate and enable the Auto-Fallback feature. Auto-Fallback will negotiate the best possible connection speed between the Router and a wireless client. The default is Auto.

N Transmission Rate  The rate of data transmission should be set depending on the speed of your Wireless-N networking. You can select from a range of transmission speeds, or you can select Auto to have the Router automatically use the fastest possible data rate and enable the Auto-Fallback feature. Auto-Fallback will negotiate the best possible connection speed between the Router and a wireless client. The default is Auto.

CTS Protection Mode  The Router will automatically use CTS (Clear-To-Send) Protection Mode when your Wireless-N and Wireless-G products are experiencing severe problems and are not able to transmit to the Router in an environment with heavy 802.11b traffic. This function boosts the Router’s ability to catch all Wireless-

N and Wireless-G transmissions but will severely decrease performance. The default is Auto.

Beacon Interval  Enter a value between 20 and 999 milliseconds. The Beacon Interval value indicates the frequency interval of the beacon. A beacon is a packet broadcast by the Router to synchronize the wireless network. The default value is 100.

DTIM Interval  This value, between 1 and 255, indicates the interval of the Delivery Traffic Indication Message (DTIM). A DTIM field is a countdown field informing clients of the next window for listening to broadcast and multicast messages. When the Router has buffered broadcast or multicast messages for associated clients, it 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 value, 2347, is recommended. If a network packet is smaller than the preset RTS threshold size, the RTS/CTS mechanism will not be enabled. The Router 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 2347.

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 Router’s local network.

RangePlus Wireless Router

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Contents User Guide Icon Descriptions About This GuideOnline Resources Copyright and TrademarksTable of Contents Electric and Electronic Equipment Weee Back Panel Chapter Product OverviewFront Panel Additional Security Tips Chapter Wireless Security ChecklistGeneral Network Security Guidelines How to Access the Web-Based Utility Chapter Advanced ConfigurationSetup Basic Setup Internet SetupPPPoE Static IPTelstra Cable Network SetupOptional Settings Router IP Dhcp Server SettingDhcp Reservation Clients Already ReservedTime Setting Setup DdnsDdns Service DynDNS.orgSetup Advanced Routing Setup MAC Address CloneMAC Address Clone Advanced RoutingWireless Wireless Security Wireless Basic Wireless SettingsWireless Network Routing TableSecurity Mode Wireless SecurityRadius Wireless MAC Filter Wireless Wireless MAC FilterAccess Restriction Wireless Client ListSecurity Firewall Advanced WirelessFirewall Security VPN PassthroughInternet Filter Web FilterSummary 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 TriggeringWireless QoS Quality of ServiceInternet Access Priority Applications and Gaming QoSCategory Router Access Administration ManagementWeb Access Remote AccessLog Administration LogAdministration Diagnostics Administration Firmware Upgrade Administration Factory DefaultsDiagnostics Factory DefaultsStatus Local Network Status RouterStatus Wireless Network Your computer cannot connect to the Internet Appendix a TroubleshootingEnvironmental Appendix B SpecificationsLimited Warranty Appendix C Warranty InformationFCC Statement Safety NoticesFCC Radiation Exposure Statement Industry Canada StatementAvis d’Industrie Canada Wireless DisclaimerDansk Danish Miljøinformation for kunder i EU Regulatory Information Norsk Norwegian Miljøinformasjon for kunder i EU Regulatory Information