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NETGEAR WGR614v7 manual Using the LAN IP Setup Options, Setting the MTU Size

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Setting the MTU Size

54 Mbps Wireless Router WGR614v7 Reference Manual

Setting the MTU Size

The normal MTU (Maximum Transmit Unit) value for most Ethernet networks is 1500 Bytes, 1492 Bytes for PPPoE connections, or 1436 for PPTP connections. For some ISPs you may need to reduce the MTU. But this is rarely required, and should not be done unless you are sure it is necessary for your ISP connection.

Any packets sent through the router that are larger than the configured MTU size will be repackaged into smaller packets to meet the MTU requirement. To change the MTU size:

1.Under MTU Size, enter a new size between 64 and 1500.

2.Click Apply to save the new configuration.

Using the LAN IP Setup Options

The second feature category under the Advanced heading is LAN IP Setup. This menu allows configuration of LAN IP services such as DHCP and RIP. From the Main Menu of the browser interface, under Advanced, click on LAN IP Setup to view the LAN IP Setup menu, shown below.

Figure 6-6: LAN IP Setup Menu

Advanced Configuration of the Router

6-9

April 2006

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NETGEAR WGR614v7 manual Using the LAN IP Setup Options, Setting the MTU Size

Contents

April 54 Mbps Wireless Router WGR614v7 Reference ManualNETGEAR, Inc EN 55 022 Declaration of Conformance Statement of ConditionsApril Certificate of the Manufacturer/Importer Bestätigung des Herstellers/ImporteursCustomer Support AprilApril Product and Publication DetailsModel Number WGR614v7Configuring the Internet and Wireless Settings ContentsChapter About This Manual ChapterMaintenance Chapter Content FilteringAdvanced Configuration of the Router ChapterTechnical Specifications TroubleshootingChapter Appendix APreparing Your Network Appendix CApril Contents Wireless Networking BasicsAppendix D GlossaryApril ContentsAudience, Scope, Conventions, and Formats Chapter About This Manualhttp//kbserver.netgear.com/products/WGR614v7.asp How to Use This Manual Printing a Page in the HTML View How to Print this ManualPrinting a Chapter Printing the Full ManualAbout This Manual 54 Mbps Wireless Router WGR614v7 Reference ManualApril Chapter Introduction Key FeaturesA Powerful, True Firewall with Content Filtering 802.11g Wireless NetworkingAutosensing Ethernet Connections with Auto Uplink SecurityExtensive Protocol Support Easy Installation and Management Maintenance and Support Package ContentsFigure 2-1 WGR614v7 Front Panel The Router’s Front PanelStatus Light Descriptions AC power adapter outlet for 12 V DC @ 1A output, 22W maximum The Router’s Rear Panel4 3 2 Introduction 54 Mbps Wireless Router WGR614v7 Reference ManualApril Initial Configuration Chapter 3 Configuring the Internet and Wireless SettingsLogging Into Your Router Figure 3-3 Login result 54 Mbps Wireless Router WGR614v7 Reference Manual3. Click OK and the resulting window below appears AprilInternet Settings Changing Your ConfigurationBasic Settings, No Login http//kbserver.netgear.com/productsautomatic/WGR614v6.asp For the most current documentation, go toIf you have a cable modem, this is usually the Workgroup name Usually, select Use Default MAC Address Wireless Settings Wireless SettingsWireless Settings Wireless SettingsSecurity Options Default Factory Settings NETGEAR Product Registration, Support, and Documentation How to Bypass the Configuration Assistanthttp//kbserver.netgear.com/products/WGR614v6.asp http//kbserver.netgear.com/documentation/WGR614v6.aspConfiguring the Internet and Wireless Settings 54 Mbps Wireless Router WGR614v7 Reference Manual3-12 AprilContent Filtering Overview Chapter Content FilteringBlocking Access to Internet Sites Blocking Access to Internet Services Figure 4-3 Add Services menu Configuring a User Defined ServiceConfiguring Services Blocking by IP Address Range Scheduling When Blocking Will Be EnforcedViewing Logs of Web Access or Attempted Web Access Configuring E-Mail Alert and Web Access Log Notifications Turn e-mail notification on Viewing Wireless Router Status Information Chapter MaintenanceWireless Router Status Fields 54 Mbps Wireless Router WGR614v7 Reference ManualApril FieldWireless Router Status Fields continued 54 Mbps Wireless Router WGR614v7 Reference ManualFigure 5-2 Connection Status screen Connection Status ItemsConnection Status Items continued 54 Mbps Wireless Router WGR614v7 Reference ManualFigure 5-3 Router Statistics screen Router Statistics ItemsViewing a List of Attached Devices Configuration File ManagementRouter Statistics Items continued Figure 5-4 Attached Devices menuRestoring and Backing Up the Configuration Upgrading the Router Software Erasing the ConfigurationChanging the Administrator Password Figure 5-7 Set Password menu Maintenance 54 Mbps Wireless Router WGR614v7 Reference Manual5-10 AprilConfiguring Port Triggering Chapter 6 Advanced Configuration of the RouterPort Triggering Timeout Configuring Port Forwarding to Local Servers 3. Click the Add button Editing or Deleting a Port Forwarding Entry Adding a Custom ServiceMultiple Computers for Half Life, KALI or Quake III Example Local Web and FTP Server ExampleConnect Automatically, as Required Configuring the WAN Setup OptionsDisabling the SPI Firewall Setting Up a Default DMZ ServerResponding to Ping on Internet WAN Port Setting the MTU Size Using the LAN IP Setup OptionsConfiguring LAN TCP/IP Setup Parameters Using the Router as a DHCP server Figure 6-7 Address Reservation menu Using Address ReservationUsing a Dynamic DNS Service Configuring Static Routes To add or edit a Static Route Enabling Remote Management Access To configure your router for Remote Management Figure 6-12. UPnP Menu Using Universal Plug and Play UPnPNote If you use applications such as multi-player gaming, peer-to-peer connections, real time communications such as instant messaging, or remote assistance a feature in Windows XP, you should enable UPnP Advanced Configuration of the Router 54 Mbps Wireless Router WGR614v7 Reference Manual6-20 AprilPower Light Not On Chapter TroubleshootingBasic Functioning LAN or WAN Port Lights Not On Lights Never Turn OffTroubleshooting the Web Configuration Interface Troubleshooting the ISP Connection Testing the LAN Path to Your Router Troubleshooting a TCP/IP Network Using a Ping UtilityTesting the Path from Your Computer to a Remote Device Problems with Date and Time Restoring the Default Configuration and PasswordPage Power Adapter Appendix A Technical SpecificationsPhysical Specifications Environmental SpecificationsWireless 54 Mbps Wireless Router WGR614v7 Reference ManualApril Appendix B Network, Routing, Firewall, and Basics What is a Router?Related Publications Basic Router ConceptsRouting Information Protocol IP Addresses and the InternetThe five address classes are Class A Subnet Addressing NetmaskFigure B-2 Example of Subnetting a Class B Address Table 7-2. Netmask Formats Table 7-1. Netmask Notation Translation Table for One OctetNumber of Bits Dotted-Decimal Value Dotted-Decimal MasklengthPrivate IP Addresses Single IP Address Operation Using NATMAC Addresses and Address Resolution Protocol Domain Name Server Related DocumentsWhat is a Firewall? IP Configuration by DHCPInternet Security and Firewalls Denial of Service Attack Ethernet CablingStateful Packet Inspection Inside Twisted Pair Cables Category 5 Cable QualityFigure B-5 illustrates crossover twisted pair cable 54 Mbps Wireless Router WGR614v7 Reference ManualFigure B-4 Straight-Through Twisted-Pair Cable Figure B-5 Crossover Twisted-Pair CableFigure B-6 Category 5 UTP Cable with Male RJ-45 Plug at Each End Uplink Switches, Crossover Cables, and MDI/MDIX SwitchingThe wireless router incorporates Auto UplinkTM technology also called MDI/MDIX. Each LOCAL Ethernet port will automatically sense whether the Ethernet cable plugged into the port should have a normal connection e.g. connecting to a computer or an uplink connection e.g. connecting to a router, switch, or hub. That port will then configure itself to the correct configuration. This feature also eliminates the need to worry about crossover cables, as Auto UplinkTM will accommodate either type of cable to make the right connection B-16 54 Mbps Wireless Router WGR614v7 Reference ManualNetwork, Routing, Firewall, and Basics AprilAppendix C Preparing Your Network Computer Network Configuration RequirementsWhat You Need To Use a Router with a Broadband Modem Cabling and Computer HardwareWhere Do I Get the Internet Configuration Parameters? Internet Configuration RequirementsRecord Your Internet Connection Information Preparing Your Computers for TCP/IP NetworkingInstall or Verify Windows Networking Components Configuring Windows 95, 98, and Me for TCP/IP NetworkingIf you need to install a new adapter, follow these steps Locate your Network Neighborhood icon Choose Settings, and then Control Panel54 Mbps Wireless Router WGR614v7 Reference Manual Verify the following settings as shownClient for Microsoft Network exists Ethernet adapter is present TCP/IP is presentVerifying TCP/IP Properties Selecting Windows’ Internet Access MethodInstall or Verify Windows Networking Components Configuring Windows NT4, 2000 or XP for IP NetworkingDHCP Configuration of TCP/IP in Windows XP DHCP Configuration of TCP/IP in Windows XP, 2000, or NT4Locate your Network Neighborhood icon Administrator logon access rights are needed to use this window DHCP Configuration of TCP/IP in Windows The Local Area Connection Properties dialog box appears Right click on Local Area Connection and select PropertiesObtain DNS server address automatically is selected Obtain an IP address automatically is selectedDHCP Configuration of TCP/IP in Windows NT4 C-16 54 Mbps Wireless Router WGR614v7 Reference ManualPreparing Your Network AprilThe TCP/IP Properties dialog box now displays Verifying TCP/IP Properties for Windows XP, 2000, and NT4MacOS 8.6 or Configuring the Macintosh for TCP/IP NetworkingMacOS Verifying TCP/IP Properties for Macintosh Computers What Is Your Configuration Information? Are Login Protocols Used?Verifying the Readiness of Your Internet Account mail.xxx.yyy.com Obtaining ISP Configuration Information for Windows ComputersObtaining ISP Configuration Information for Macintosh Computers 54 Mbps Wireless Router WGR614v7 Reference Manual Restarting the NetworkApril C-24 54 Mbps Wireless Router WGR614v7 Reference ManualPreparing Your Network AprilWireless Networking Overview Appendix D Wireless Networking BasicsInfrastructure Mode Ad Hoc Mode Peer-to-Peer Workgroup Authentication and WEP Data EncryptionNetwork Name Extended Service Set Identification ESSID Open System Authentication 802.11 Authentication802.11b Authentication Open System Steps 1. Do Not Use WEP The network uses Open System 802.11b Authentication Shared Key StepsExample of Hexadecimal Key Content Key SizeTable D-1 Encryption Key SizesWEP Configuration Options Wireless ChannelsWPA and WPA2 Wireless Security How Does WPA Compare to WEP? How Does WPA Compare to WPA2 IEEE 802.11i? What are the Key Features of WPA and WPA2 Security?The primary information conveyed in the Beacon frames is the authentication method and the cipher suite. Possible authentication methods include 802.1X and Pre-shared key. Pre-shared key is an authentication method that uses a statically configured pass phrase on both the stations and the access point. This obviates the need for an authentication server, which in many home and small office environments will not be available nor desirable. Possible cipher suites include WEP, TKIP, and AES Advanced Encryption Standard. We talk more about TKIP and AES when addressing data privacy below Wired Network with Optional 802.1x Port Based Network Access Control Wireless LANLogin Authentication Figure 4-3 WPA/WPA2 Overview2. The access point replies with an EAP-request identity message WPA/WPA2 Data Encryption Key Management Michael Temporal Key Integrity Protocol TKIPAES Support for WPA2 Product Support for WPA/WPA2 Is WPA/WPA2 Perfect?The WPA/WPA2 two-phase authentication Changes to Wireless Access PointsChanges to Wireless Network Adapters The WPA/WPA2 two-phase authenticationChanges to Wireless Client Programs Glossary 54 Mbps Wireless Router WGR614v7 Reference ManualGlossary AprilAccess Point AP 54 Mbps Wireless Router WGR614v7 Reference ManualApril 802.11e StandardAd-Hoc mode 54 Mbps Wireless Router WGR614v7 Reference ManualBluetooth Wireless Technology AprilCSMA-CA Carrier Sense Multiple Access/Collision Avoidance 54 Mbps Wireless Router WGR614v7 Reference ManualCSMA-CD Carrier Sense Multiple Access/Collision Detection DHCP Dynamic Host Configuration ProtocolDNS Domain Name Service 54 Mbps Wireless Router WGR614v7 Reference ManualEnterprise-level User Authentication via 802.1x and EAP AprilHot Spot also referred to as Public Access Location 54 Mbps Wireless Router WGR614v7 Reference ManualInfrastructure mode AprilPhysical Data Link Network Transport Session Presentation Application 54 Mbps Wireless Router WGR614v7 Reference ManualApril April 54 Mbps Wireless Router WGR614v7 Reference ManualMultiple Input Multiple Output MIMO NAT Network Address TranslationRogue Access Point 54 Mbps Wireless Router WGR614v7 Reference ManualApril Plug and PlaySwitch 54 Mbps Wireless Router WGR614v7 Reference ManualApril Satellite broadbandApril 54 Mbps Wireless Router WGR614v7 Reference ManualTCP/IP TKIPWEP Wired Equivalent Privacy 54 Mbps Wireless Router WGR614v7 Reference ManualWi-Fi Wireless Fidelity AprilWi-Fi Protected Access WPA 54 Mbps Wireless Router WGR614v7 Reference ManualWi-Fi Protected Access and IEEE 802.11i Comparison Wi-Fi Protected Access for the EnterpriseWi-Fi Protected Access for Public Access 54 Mbps Wireless Router WGR614v7 Reference ManualWi-Fi Protected Access in Mixed Mode Deployment Wireless Multimedia WMM