NETGEAR WGR614 v5 Setting the MTU Size

Reference Manual for the 54 Mbps Wireless Router WGR614 v5

Advanced Configuration of the Router 7-9

July 2004 202-10036-01

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.

Contents

Main Page July 2004 202-10036-01 Page Contents Page Page Page Page Page Chapter 1 About This Manual Audience, Scope, Conventions, and Formats How to Use This Manual How to Print this Manual Page Chapter 2 Introduction Key Features 802.11g Wireless Networking A Powerful, True Firewall with Content Filtering Security Autosensing Ethernet Connections with Auto Uplink Extensive Protocol Support Easy Installation and Management Maintenance and Support Package Contents 2-6 Introduction June 2004 202-10036-01 The Routers Front Panel The front panel of the WGR614 v5 router contains the status lights described below. Figure 2-1: WGR614 v5 Front Panel Table 2-1. Status Light Descriptions The Routers Rear Panel A Road Map for How to Get There From Here 2-8 Introduction Table 2-1. A Road Map for How to Get There From Here Introduction 2-9 Table 2-1. A Road Map for How to Get There From Here Page Chapter 3 Connecting the Router to the Internet Prepare to Install Your Wireless Router First, Connect the Wireless Router to the Internet 1. CONNECT THE WIRELESS ROUTER, THE COMPUTER, AND THE MODEM A B &DEOH ,QWHUQHW SRUW D 2. RESTART YOUR NETWORK IN THE CORRECT SEQUENCE 3. USE THE SMART WIZARD TO CONFIGURE THE WIRELESS ROUTER Page Page Now, Set Up a Computer for Wireless Connectivity 1. CONFIGURE THE COMPUTERS WIRELESS ADAPTER SETTINGS 2. VERIFY WIRELESS CONNECTIVITY Troubleshooting Tips Overview of How to Access the Wireless Router How to Log On to the Wireless Router After Configuration Settings Have Been Applied Page How to Bypass the Configuration Assistant How to Manually Configure Your Internet Connection Page Using the Smart Setup Wizard NETGEAR Product Registration, Support, and Documentation Chapter 4 Wireless Configuration Observe Performance, Placement, and Range Guidelines Implement Appropriate Wireless Security WGR614 v5 :LUHOHVV'DWD 6HFXULW\2SWLRQV 5DQJHXSWRIRRWUDGLXV Understanding Wireless Settings Page Page Information to Gather Before Changing Basic Wireless Settings Default Factory Settings How to Set Up and Test Basic Wireless Connectivity Page How to Configure WEP Page How to Configure WPA-PSK Wireless Security How to Restrict Wireless Access by MAC Address Page Page Page Page Blocking Access to Internet Sites Blocking Access to Internet Services Configuring a User Defined Service Configuring Services Blocking by IP Address Range Scheduling When Blocking Will Be Enforced Viewing Logs of Web Access or Attempted Web Access Configuring E-Mail Alert and Web Access Log Notifications Page Page 6-2 Maintenance July 2004 202-10036-01 This screen shows the following parameters: Table 6-1. Wireless Router Status Fields Click on the Connection Status button to display the connection status, as shown below. This screen shows the following statistics:. Click on the Show Statistics button to display router usage statistics, as shown below. This screen shows the following statistics: Viewing a List of Attached Devices Configuration File Management Restoring and Backing Up the Configuration Erasing the Configuration Upgrading the Router Software Changing the Administrator Password Page Page Chapter 7 Advanced Configuration of the Router Configuring Port Triggering Page Configuring Port Forwarding to Local Servers Page Adding a Custom Service Editing or Deleting a Port Forwarding Entry Local Web and FTP Server Example Multiple Computers for Half Life, KALI or Quake III Example Configuring the WAN Setup Options Connect Automatically, as Required Disabling the SPI Firewall Setting Up a Default DMZ Server Responding to Ping on Internet WAN Port Setting the MTU Size Using the LAN IP Setup Options Configuring LAN TCP/IP Setup Parameters Page Using the Router as a DHCP server Using Address Reservation Using a Dynamic DNS Service Configuring Static Routes Page Enabling Remote Management Access Using Universal Plug and Play (UPnP) Page Chapter 8 Troubleshooting Basic Functioning Power Light Not On Lights Never Turn Off LAN or WAN Port Lights Not On Troubleshooting the Web Configuration Interface Troubleshooting the ISP Connection Troubleshooting a TCP/IP Network Using a Ping Utility Testing the LAN Path to Your Router Testing the Path from Your Computer to a Remote Device Restoring the Default Configuration and Password Problems with Date and Time Technical Specifications A-1 Appendix A Technical Specifications This appendix provides technical specifications for the 54 Mbps Wireless Router WGR614 v5. Page Appendix B Network, Routing, Firewall, and Basics Related Publications Basic Router Concepts What is a Router? Routing Information Protocol IP Addresses and the Internet Page Netmask Subnet Addressing Page Page Private IP Addresses Single IP Address Operation Using NAT MAC Addresses and Address Resolution Protocol Related Documents Domain Name Server IP Configuration by DHCP Internet Security and Firewalls What is a Firewall? Ethernet Cabling Category 5 Cable Quality Inside Twisted Pair Cables Uplink Switches, Crossover Cables, and MDI/MDIX Switching Page Page Appendix C Preparing Your Network What You Need To Use a Router with a Broadband Modem Cabling and Computer Hardware Computer Network Configuration Requirements Internet Configuration Requirements Where Do I Get the Internet Configuration Parameters? Record Your Internet Connection Information Preparing Your Computers for TCP/IP Networking Configuring Windows 95, 98, and Me for TCP/IP Networking Install or Verify Windows Networking Components Page Enabling DHCP to Automatically Configure TCP/IP Settings in Windows 95B, 98, and Me Locate your Network Neighborhood icon. Selecting Windows Internet Access Method Verifying TCP/IP Properties Configuring Windows NT4, 2000 or XP for IP Networking Install or Verify Windows Networking Components DHCP Configuration of TCP/IP in Windows XP, 2000, or NT4 DHCP Configuration of TCP/IP in Windows XP Page DHCP Configuration of TCP/IP in Windows 2000 Page Page DHCP Configuration of TCP/IP in Windows NT4 Page Verifying TCP/IP Properties for Windows XP, 2000, and NT4 Configuring the Macintosh for TCP/IP Networking MacOS 8.6 or 9.x MacOS X Verifying TCP/IP Properties for Macintosh Computers Verifying the Readiness of Your Internet Account Are Login Protocols Used? What Is Your Configuration Information? Obtaining ISP Configuration Information for Windows Computers Obtaining ISP Configuration Information for Macintosh Computers Page Page Appendix D Wireless Networking Basics Wireless Networking Overview Infrastructure Mode Ad Hoc Mode (Peer-to-Peer Workgroup) Network Name: Extended Service Set Identification (ESSID) Wireless Channels Page WEP Wireless Security WEP Authentication WEP Open System Authentication WEP Shared Key Authentication Page How to Use WEP Parameters WPA Wireless Security How Does WPA Compare to WEP? How Does WPA Compare to IEEE 802.11i? What are the Key Features of WPA Security? Page Wired Network with Optional 802.1x Port Based Network Access Control Wireless LAN Page Page Page Is WPA Perfect? Product Support for WPA Page Page Glossary Use the list below to find definitions for technical terms used in this manual. List of Glossary Terms Page Page Page Page Page Page Page Page Page Index Index 1 Numerics A B G H I K L Q R S T U