Change the MTU Size, Common MTU sizes | NETGEAR R6300v2 guide

R6300v2 Smart WiFi Router

3.Type the IP address.

4.Click the Apply button. Your change takes effect.

Change the MTU Size

The maximum transmission unit (MTU) is the largest data packet a network device transmits. When one network device communicates across the Internet with another, the data packets travel through many devices along the way. If a device in the data path has a lower MTU setting than the other devices, the data packets have to be split or “fragmented” to accommodate the device with the smallest MTU.

The best MTU setting for NETGEAR equipment is often just the default value. In some situations, changing the value fixes one problem but causes another. Leave the MTU unchanged unless one of these situations occurs:

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

-A secure website that does not open, or displays only part of a web page

-Yahoo email

-MSN portal

-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. For example, you might not be able 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

1500

1492

Application

The largest Ethernet packet size. This setting is typical for connections that do not use PPPoE or VPN, and is the default value for NETGEAR routers, adapters, and switches.

Used in PPPoE environments.

NETGEAR genie ADVANCED Home

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NETGEAR R6300v2 user manual Change the MTU Size, Common MTU sizes

Contents

R6300v2 Smart WiFi Router Compliance SupportTrademarks Contents USB Storage Administration Appendix a Supplemental Information Hardware Setup Getting to know your router Hardware Features Unpack Your Router WiFi On/Off button WPS button USB 2.0 port LEDs Front and Side Panels Rear Panel Label Position Your Router Connecting to the router Getting Started Wireless Devices and Security Settings Router Setup PreparationLogin and Access Use Standard TCP/IP Properties for Dhcp Netgear genie Setup  To use Netgear genie to set up your router Upgrade the Firmware Use Netgear genie after Installation To upgrade the firmware Dashboard Basic Home Screen Basic Home screen with dashboard, language, and online help  To use WPS to join the wireless network Join Your Wireless NetworkWi-Fi Protected Setup Method Manual Method Netgear genie App and Mobile genie App Genie mobile app home screen Netgear genie Basic Settings Your Internet connection and WiFi Internet Setup Internet Service Provider. PPPoE or PPPoA Internet Setup Screen FieldsInternet IP Address  To set up Live Parental Controls Parental Controls Netgear genie Basic Settings Basic Wireless Settings Click the Take me to the status screen button Netgear genie Basic Settings Wireless Settings Screen Fields Wireless Security Options Set Up a Guest Network Change the Wireless Security Option  To set up a guest network Select Basic Guest Network View Attached Devices  To go to the Attached Devices screen Specifying custom settings Netgear genie Advanced Home  To use the Setup Wizard Select Advanced Setup Wizard Internet Connection Setup WizardNetgear genie Advanced Home Screen WAN Setup Default DMZ Server Change the MTU Size Common MTU sizes LAN Setup  To change the MTU size Select Advanced Setup WAN Setup LAN Setup Screen Settings  To change the LAN settings Select Advanced Setup LAN Setup Role of the Router as a Dhcp Server Use Router as Dhcp Server WPS Wizard for WiFi Connections Set Up Address Reservation WMM QoS for Wireless Multimedia Applications Quality of Service QoS SetupPush Button Set Up QoS for Internet Access  To disable WMM QoS Select Advanced Setup QoS Setup Netgear genie Advanced Home QoS for a Router LAN Port Click the Add Priority Rule button Edit or Delete an Existing QoS Policy Bandwidth Control  To set the maximum uplink bandwidth  To enable Facebook WiFi Enable Facebook WiFiSelect the Enable Facebook Wi-Fi check box Netgear genie Advanced Home Facebook WiFi is enabled Accessing and Configuring a USB Storage USB Storage Connect a USB Storage Device to the Router USB Drive Requirements To connect a USB storage device Safely Remove a USB Drive Access the USB Storage Device To map the USB device to a Windows network drive  To access the USB drive from a remote computer  To access the USB drive with FTP from a remote computer Store Files in a Central Location for Printing Share FilesShare Photos  To share files with your friends and family Share Large Files over the Internet Back Up Windows Computers with ReadySHARE Vault To back up your Windows computer View a USB Device Attached to the Router USB Storage Device Network and Access Settings Network Neighborhood/MacShare. Enabled by default Available Network Folders  To add a network folder Select Advanced ReadySHARE Click Create Network Folder  To edit a network folder Select Advanced ReadySHARE Specify Approved USB Devices Select the Allow only approved devices check box Media Server Settings Use ReadyDLNA to Play Media from Your Network on TiVo TiVo Support To play videos On the TiVo, select TiVo Central My Shows  To copy TiVo Files onto a computer Setting up and managing a shared USB ReadySHARE Printer  To set up ReadySHARE Printer Set Up the ReadySHARE Printer UtilityReadySHARE Printer Utility Install the Netgear USB Control Center  To install the Netgear USB Control Center ReadySHARE Printer Set Up the Netgear USB Control Center  To set up the Netgear USB Control Center Configure the Netgear USB Control Center  To configure the Netgear USB Control Center Select Tools Configuration Manage USB Print and Scan Jobs ReadySHARE Printer Launch the Netgear USB Control Center  To launch the Netgear USB Control Center Use the Scan Feature of a Multifunction USB Printer  To use the scan feature of a multifunction USB printer Customizing the firewall settings Security Click Delete Keyword Keyword Blocking of Http Traffic To delete a keyword or domain  To specify a trusted computer Block Services Port Filtering Port Triggering to Open Incoming Ports Defined Port Forwarding to Permit External Host Communications How Port Forwarding Differs from Port Triggering Set Up Port Forwarding to Local Servers Add a Custom Service Click the Add Custom Service button Edit or Delete a Port Forwarding Entry Set Up Port TriggeringClick Edit Service or Delete Service Application Example Make a Local Web Server Public Clear the Disable Port Triggering check box Security Schedule Blocking  To schedule blocking Select Advanced Security Schedule Set Up Security Event Email Notifications Your settings are saved Administration Managing your network Upgrade the Router Firmware Internet Port View Router StatusRouter Information Hardware Version. The router model Show Statistics Button Wireless Settings 2.4 GHz and 5 GHz Connection Status Button View Logs of Web Access or Attempted Web Access  To view logs Select Advanced Administration Logs Restore Configuration Settings Manage the Configuration FileBack Up Settings Do not interrupt the reboot process Change the Password Erase the Current Configuration Settings Password Recovery  To recover your password Advanced Settings Setting up unique situations Advanced Wireless Settings Control the Wireless Radio View or Change WPS Settings Set Up a Wireless Schedule To configure and enable the wireless schedule Set Up a Wireless Access List by MAC Address Wireless Access Point AP Select the Turn Access Control On check box  To set up the router as an AP Select Advanced Wireless AP Set Up the Router in Bridge Mode  To set up bridge mode Click the setup bridge mode wireless settings button Set Up a New Dynamic DNS Account Dynamic DNS  To set up Dynamic DNS if you already have an account Service Provider list, select NetgearSpecify a DNS Account That You Already Have Netgear NoIP.com Select Advanced Advanced Setup Dynamic DNS Change the Dynamic DNS Settings To change your settings Static Routes  To set up a static route  To edit or delete a static route Remote Management Universal Plug and Play  To turn on Universal Plug and Play IPv6 Requirements for Entering IPv6 Addresses Auto Detect IPv6 Auto Config IPv6 6to4 Tunnel Advanced Settings 114 IPv6 Pass Through  To set up a pass-through IPv6 Internet connection To set up a fixed IPv6 Internet connection IPv6 Fixed  To set up an IPv6 Internet connection with a Dhcp server IPv6 Dhcp  To set up a PPPoE IPv6 Internet connection IPv6 PPPoE Advanced Settings 118 Traffic Meter Advanced Settings 120 Troubleshooting Quick Tips Wireless SettingsNetwork Settings Troubleshoot with the LEDs LEDs Never Turn Off Power LED Is Off or BlinkingPower LED Stays Amber Internet LEDs Is Off WiFi LED Is Off Cannot Log In to the Router Cannot Access the Internet Troubleshooting 126 Troubleshoot PPPoE Troubleshoot Internet Browsing Wireless Connectivity Changes Not Saved Test the LAN Path to Your Router Troubleshoot Your Network Using the Ping Utility To ping the router from a Windows computer Test the Path from Your Computer to a Remote Device Supplemental Information Factory Settings Factory default settings Supplemental Information 133 Technical Specifications R6300v2 Router specifications Supplemental Information 135