Common MTU Sizes | NETGEAR WNDR4500 manual

N900 Wireless Dual Band Gigabit Router WNDR4500

- 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 websites, frames within websites, secure login pages, or 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. The following table describes common MTU sizes and applications.

Table 2. 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 do not 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.Select Advanced > Setup > WAN Setup.

2.In the MTU Size field, enter a new size between 64 and 1500.

3.Click Apply to save the settings.

Genie Advanced Home

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NETGEAR WNDR4500 user manual  To change the MTU size Select Advanced Setup WAN Setup, Common MTU Sizes

Contents

N900 Wireless Dual Band Gigabit Router WNDR4500 Statement of Conditions Technical SupportTrademarks Contents Genie Advanced Home Administration Appendix a Supplemental Information Hardware Setup Position Your Router Unpack Your Router Front Panel Hardware Features LED Router, rear view Back Panel Label Getting Started with Netgear Genie Use Standard TCP/IP Properties for Dhcp Router Setup PreparationTypes of Logins and Access Wireless Devices and Security Settings Browse to http//routerlogin.net Netgear Genie Setup To use Netgear Genie to set up your router Upgrade Router Firmware Use Netgear Genie after Installation Router Dashboard Basic Home Screen Manual Method Add Wireless Devices or Computers to Your NetworkWi-Fi Protected Setup WPS Method  To use WPS to join the wireless network Genie Basic Settings Does Your ISP Require a Login? Answer either yes or no Internet SetupInternet Setup Screen Fields Internet IP Address Attached Devices ReadySHARE USB Storage Parental Controls  To view or change basic wireless settings Basic Wireless Settings Region Selection Wireless Settings Screen FieldsWireless Network GHz b/g/n and 5.0 GHz a/n Change WPA Security Option and Passphrase Security Options Settings Guest Networks  To set up a guest network WPA Encryption Guest Network Wireless Security Options Genie Advanced Home Setup Wizard Select either Push Button or PIN Number WPS WizardSelect Advanced WPS Wizard Setup Menu WAN Setup Change the MTU Size Default DMZ Server To set up a default DMZ server Common MTU Sizes  To change the MTU size Select Advanced Setup WAN Setup  To change the LAN settings LAN Setup Use the Router as a Dhcp Server LAN Setup Screen Settings  To reserve an IP address Address Reservation Set Up QoS for Internet Access Quality of Service QoS SetupEnable WMM QoS for Wireless Multimedia Applications  To create a QoS policy for applications and online games QoS for Applications and Online Gaming Click the Add Priority Rule button QoS for a Router LAN Port Click Add Priority Rule QoS for a MAC Address  To edit or delete a QoS policy Editing or Deleting an Existing QoS Policy USB Storage File-Sharing Scenarios ReadySHARE AccessUSB Drive Requirements  To share files with your friends and family Sharing PhotosStoring Files in a Central Location for Printing Sharing Large Files over the Internet Basic Settings Add or Edit a Network Folder  To access your USB device USB Storage Advanced Settings Available Network Folders Safely Remove a USB Drive Media Server Settings Specify Approved USB Devices Select the Allow only approved devices check box Access the Router’s USB Drive Remotely Using FTP To connect to the router’s USB drive using a web browser Connect to the USB Drive from a Remote Computer ReadySHARE Printer ReadySHARE Printer  To set up ReadySHARE Printer N900 Wireless Dual Band Gigabit Router WNDR4500 N900 Wireless Dual Band Gigabit Router WNDR4500 N900 Wireless Dual Band Gigabit Router WNDR4500 N900 Wireless Dual Band Gigabit Router WNDR4500 USB Control Center Utility USB Printer Control Center Configuration  To control a USB speaker Scan with a Multi-Function PrinterUSB Speaker Desktop Netgear Genie Security  To specify a trusted computer Keyword Blocking of Http Traffic To delete a keyword or domain  To block services Block Services Port Filtering Schedule Blocking  To schedule blocking Security Event Email Notifications  To set up email notifications Administration Upgrade the Router Firmware LAN Port Internet Provider WAN SetupView Router Status Router Information System up time and poll interval statistics Statistics Button View connection status information Connection Status Button Wireless Settings 2.4 GHz and 5 GHz Guest Network 2.4 GHz and 5 GHz View Logs of Web Access or Attempted Web Access Manage the Configuration File Do not interrupt the reboot process Back Up SettingsRestore Configuration Settings  To restore configuration settings that you backed up Password Recovery Set Password Advanced Settings Advanced Wireless Settings Wireless repeating scenario Wireless Repeating Function WDS Wireless Repeating Function  To set up the base station Set Up the Base Station  To configure the router as a repeater unit Set Up a Repeater Unit Port Forwarding and Triggering Remote Computer Access Basics Destination port number Port Triggering to Open Incoming Ports Port Forwarding to Permit External Host Communications How Port Forwarding Differs from Port Triggering  To set up port forwarding Set Up Port Forwarding to Local Servers Add a Custom Service  To edit or delete a port forwarding entry Click Edit Service or Delete ServiceEditing or Deleting a Port Forwarding Entry Application Example Making a Local Web Server Public Universal Plug and Play on Set Up Port Triggering N900 Wireless Dual Band Gigabit Router WNDR4500 Dynamic DNS Forward traffic to a changing IP address Static Routes  To set up a static route Remote Management Universal Plug and Play USB Settings  To turn on Universal Plug and Play Traffic Meter  To set up an IPv6 Internet connection typeIPv6 103 Troubleshooting Sequence to Restart Your Network Wireless SettingsNetwork Settings Quick Tips Power/Test LED Stays Amber Troubleshooting with the LEDsPower/Test LED Is Off or Blinking Push N Connect WPS Button Blinks Amber Wireless LEDs Are OffLEDs Never Turn Off Internet or Ethernet Port LEDs Are Off Cannot Log In to the Router Cannot Access the Internet 109  To troubleshoot a PPPoE connection Troubleshooting PPPoETroubleshooting Internet Browsing Select Administration Router Status Changes Not Saved Wireless ConnectivityRestore the Factory Settings and Password Wireless Signal Strength  To ping the router from a running Windows PC Troubleshoot Your Network Using the Ping UtilityTest the LAN Path to Your Router Test the Path from Your Computer to a Remote Device Supplemental Information Factory Settings 115 WNDR4500 Router specifications Technical Specifications 117 Europe EU Declaration of Conformity Netgear Dual Band WirelessRegulatory Compliance Information 119 FCC Caution FCC Requirements for Operation in the United States GPL License Agreement Industry CanadaImportant Note Radiation Exposure Statement Avertissement Interference Reduction Table Index 124 125 126