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Setting the MTU Size, Using the LAN IP Setup Options

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NETGEAR RangeMax™ NEXT Wireless Router WNR834B 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 are 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 Another 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 6-9 Advanced Configuration of the Router v1.0, May 2006 6-13

Section	Page
NETGEAR RangeMax™ NEXT Wireless Router WNR834B Reference Manual	1
Contents	7
Chapter 1 About This Manual	11
Audience, Scope, Conventions, and Formats	11
How to Use This Manual	12
How to Print this Manual	12
Revision History	13
Chapter 2 Introduction	15
Package Contents	15
The Wireless Router Label	15
The Front of the Wireless Router	16
The Back of the Wireless Router	17
Installing the WNR834B router	18
How to Access the Wireless Router Again Later	18
Maintenance and Support	20
Chapter 3 Wireless Configuration	21
Observing Performance, Placement, and Range Guidelines	21
Implementing Appropriate Wireless Security	22
Information to Gather Before Changing Basic Wireless Settings	23
Default Factory Settings	25
Understanding Wireless Settings	26
How to Set Up and Test Basic Wireless Connectivity	29
How to Configure WEP	31
How to Configure WPA-PSK or WPA2-PSK Wireless Security	32
How to Restrict Wireless Access by MAC Address	33
Chapter 4 Content Filtering	35
Content Filtering Overview	35
Blocking Access to Internet Sites	35
Blocking Access to Internet Services	36
Configuring a User Defined Service	38
Blocking Services by IP Address Range	38
Scheduling When Blocking Will Be Enforced	38
Viewing Logs of Web Access or Attempted Web Access	39
Configuring E-Mail Alert and Web Access Log Notifications	41
Chapter 5 Maintenance	43
Viewing Wireless Router Status Information	43
Viewing a List of Attached Devices	47
Configuration File Management	47
Backing Up and Restoring the Configuration	48
Erasing the Configuration	48
Upgrading the Router Software	49
Changing the Administrator Password	51
Chapter 6 Advanced Configuration of the Router	53
Configuring Advanced Wireless Settings	53
Wireless Card Access List	55
Wireless Card Access Setup	56
Configuring Port Triggering and Port Forwarding	57
Configuring Port Forwarding to Local Servers	60
Adding a Custom Service	61
Editing or Deleting a Port Forwarding Entry	62
Local Web and FTP Server Example	62
Multiple Computers for Internet Gaming	62
Configuring the WAN Setup Options	63
Connecting Automatically, as Required	63
Disabling the SPI Firewall	64
Setting Up a Default DMZ Server	64
Responding to a Ping on the Internet WAN Port	64
Setting the MTU Size	65
Using the LAN IP Setup Options	65
Configuring LAN TCP/IP Setup Parameters	66
Using the Router as a DHCP server	67
Using Address Reservation	67
Using a Dynamic DNS Service	68
Configuring Static Routes	70
Enabling Remote Management Access	72
Using Universal Plug and Play (UPnP)	74
Chapter 7 Troubleshooting	77
Troubleshooting Quick Tips	77
Be sure to restart your network in this sequence	77
Make sure the Ethernet cables are securely plugged in	77
Make sure the wireless settings in the computer and router match exactly.	77
Make sure the network settings of the computer are correct.	78
Check the router status lights to verify correct router operation.	78
Basic Functioning	78
Power Light Not On	78
Lights Never Turn Off	79
LAN or WAN Port Lights Not On	79
Troubleshooting the Web Configuration Interface	80
Troubleshooting the ISP Connection	81
Troubleshooting a TCP/IP Network Using a Ping Utility	82
Testing the LAN Path to Your Router	82
Testing the Path from Your Computer to a Remote Device	83
Restoring the Default Configuration and Password	84
Problems with Date and Time	85
Appendix A Technical Specifications	87
Factory Default Settings	87
Technical Specifications	89

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NETGEAR RangeMax™ NEXT Wireless Router WNR834B Reference Manual

Advanced Configuration of the Router

6-13

v1.0, May 2006

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 are repackaged

into smaller packets to meet the MTU requirement. To change the MTU size:

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

Click

Apply

to save the new configuration.

Using the LAN IP Setup Options

Another 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 6-9