RadioLAN WNR834B user manual Msn, Common MTU Sizes

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NETGEAR RangeMax™ NEXT Wireless Router WNR834B User Manual

•You have problems connecting to your ISP, or other Internet service, and either the technical support of the ISP or of NETGEAR recommends changing MTU. These may require an MTU change:

—A secure Web site that won't open, or only displays part of a Web page

—Yahoo email

—MSN

—America Online's DSL service

•You use VPN and have severe performance problems.

•You used a program to optimize MTU for performance reasons, and now you have connectivity or performance problems..

Note: An incorrect MTU setting can cause Internet communication problems such as the inability to access certain Web sites, frames within Web sites, secure login pages,

FTP or POP servers.

If you suspect an MTU problem, a common solution is to change the MTU to 1400. If you are willing to experiment, you can gradually reduce the MTU from the maximum value of 1500 until the problem goes away. Table 6-1describes common MTU sizes and applications.

Table 6-1. Common MTU Sizes

MTU	Application

1500	The largest Ethernet packet size and the default value. This is the typical setting for non-
	PPPoE, non-VPN connections, and is the default value for NETGEAR routers, adapters,
	and switches.

1492	Used in PPPoE environments.

1472	Maximum size to use for pinging. (Larger packets are fragmented.)

1468	Used in some DHCP environments.

1460	Usable by AOL if you don't have large email attachments, for example.

1436	Used in PPTP environments or with VPN.

1400	Maximum size for AOL DSL.

576	Typical value to connect to dial-up ISPs.

To change the MTU size:

1.In the Advanced section of the main menu, click WAN Setup.

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

Fine-Tuning Your Network

6-15

v1.2, January 2007

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Contents Netgear RangeMax Next Wireless Router Certificate of the Manufacturer/Importer Product Registration, Support, and DocumentationTrademarks Statement of ConditionsEurope EU Declaration of Conformity Regulatory Compliance InformationFCC Information to User FCC Requirements for Operation in the United StatesFCC Declaration Of Conformity FCC Guidelines for Human ExposureFCC Radio Frequency Interference Warnings & Instructions WNR834B Product and Publication DetailsContents Chapter Customizing Your Network Settings Appendix a Technical Specifications V1.2, January Conventions, Formats and Scope Chapter About This ManualHow to Print this Manual How to Use This ManualPublication Revision History Revision HistoryV1.2, January Using the Setup Manual Chapter Configuring Basic ConnectivityRangeMax Next Wireless Router WNR834B Online Setup Manuals Accessing the Wireless Router For ConfigurationHttp//192.168.1.1 V1.2, January Viewing and Configuring Basic ISP Settings ISP Does Not Require Login No Login Required by ISPV1.2, January ISP Does Require Login Login Required by ISPV1.2, January Viewing the Basic Wireless Settings Configuring Wireless SettingsV1.2, January V1.2, January Viewing the Advanced Wireless Settings V1.2, January Choosing Appropriate Wireless Security Chapter Safeguarding Your NetworkSafeguarding Your Network Changing Wireless Security Settings Recommended Security SettingsV1.2, January WEP Basic Wireless Security OptionsConfiguring Security in the Advanced Wireless Settings Menu V1.2, January If WPA-PSK or WPA2-PSK Authentication is used Configuring WEP Wireless SecurityV1.2, January Configuring WPA-PSK or WPA2-PSK Wireless Security V1.2, January Restricting Wireless Access by MAC Address V1.2, January Changing the Administrator Password Backing Up Your Configuration Understanding Your Firewall Content Filtering Overview Restricting Access From Your NetworkBlocking Access to Internet Sites Restricting Access From Your Network Blocking Access to Internet Services Blocking Services by IP Address Range Configuring a User Defined ServiceScheduling Blocking Log entry descriptions Viewing Logs of Web Access or Attempted Web AccessLog action buttons Configuring Email Alert and Web Access Log NotificationsSetting the Time V1.2, January V1.2, January Using the LAN IP Setup Options Chapter Customizing Your Network SettingsConfiguring LAN TCP/IP Setup Parameters Using the Router as a Dhcp server Using Address Reservation Using a Dynamic DNS Service Configuring the WAN Setup Options Setting Up a Default DMZ Server Connecting Automatically, as RequiredDisabling the SPI Firewall Setting the MTU Size Configuring Static RoutesResponding to a Ping on the Internet WAN Port V1.2, January V1.2, January Allowing Inbound Connections To Your Network Chapter Fine-Tuning Your NetworkFine-Tuning Your Network How Port Triggering Changes the Communication Process V1.2, January How Port Forwarding Changes the Communication Process How Port Forwarding Differs From Port Triggering Configuring Port Forwarding to Local ServersAdding a Custom Service Application Example Making a Local Web Server Public Editing or Deleting a Port Forwarding EntryTo the instructions in Using Universal Plug and Play on Configuring Port TriggeringV1.2, January V1.2, January Using Universal Plug and Play Optimizing Wireless Performance Changing the MTU Common MTU Sizes MSNOptimizing Your Network Bandwidth Broadband Internet Overview of Home and Small Office Networking TechnologiesAssessing Your Speed Requirements PowerlineNetwork Connection Theoretical Raw Transfer Time Theoretical Transfer Time for 1 GigabyteV1.2, January Viewing Wireless Router Status Information Chapter Using Network Monitoring ToolsWireless Router Status Fields Default is Connection Status Items Router Statistics Items Viewing a List of Attached Devices Managing the Configuration FileBacking Up and Restoring the Configuration Upgrading the Router Software Erasing the ConfigurationV1.2, January Enabling Remote Management Access V1.2, January V1.2, January Troubleshooting Quick Tips Chapter TroubleshootingBe sure to restart your network in this sequence Check the test light to verify correct router operation Troubleshooting Basic FunctionsMake sure the network settings of the computer are correct Make sure the Ethernet cables are securely pluggedLights never turn off Power light is not on or is blinkingLAN or WAN port lights are not lit Wireless light is not lit Troubleshooting the Web Configuration Interface Troubleshooting the Internet Connection Testing the LAN Path to Your Router Troubleshooting a Network Using a Ping UtilityRequest timed out Testing the Path from Your Computer to a Remote DeviceSolving Wireless Connection Problems Problems with Date and TimeSetting Up and Testing Basic Wireless Connectivity Using Your Wireless Card Setup ProgramV1.2, January V1.2, January Restoring the Default Configuration and Password V1.2, January Factory Default Settings Appendix a Technical SpecificationsWireless General SpecificationsElectromagnetic Emissions V1.2, January Document Link Appendix B Related DocumentsV1.2, January Index Index-2