25

Chapter 5: Setting Up and Configuring the Broadband Router

Advanced Setup Tab - System Management

Broadband Router

Advanced Setup Tab - System Management

The

System Management

screen includes several tools to help troubleshoot network problems, such as looking

up DNS names, ping tests, resetting the Router to factory default settings, upgrading the Router’s firmware, and

storing and retrieving configuration files.

Diagnostics

DNS Name Lookup

The Internet has a service called the Domain Name Service (DNS), which allows users to enter an easily

remembered host name, such as www.RT042.com, instead of numerical TCP/IP addresses to access Internet

resources. The Router has a DNS lookup tool that will return the numerical TCP/IP address of a host name.

Enter the host name to look up in the

Look up the name

field and click the

Go

button. Do not add the prefix

http://

,

otherwise the result will be Address Resolving Failed. The Router will then query the DNS server and display the

result in the Diagnostics section of the screen.

Ping

The Ping test bounces a packet off an IP Address across the Internet, which returns to the sender. This test shows

if the Router is able to contact a remote host. If users on the LAN are having problems accessing services on the

Internet, try pinging the DNS server, or another IP Address at the ISP’s location. If this test is successful, try

pinging addresses outside the ISP. This will show if the problem lies with the ISP’s connection.

Enter the IP address you wish to pinged and click the

Go

button. The test will take a few seconds to complete.

Once completed, a message showing the results will be displayed in the Diagnostics section of the screen. The

results include Packets transmitted / received / loss and Round Trip Time (Minimum, Maximum, and Average).

Figure 5-28: Advanced Setup Tab - System Management

NOTE:

Ping tests require an IP address. The Router’s DNS Name

Lookup tool may be used to find the IP address of a host.

NOTE:

The IP address of the DNS server must be entered in the Network

Settings page for the DNS Name Lookup feature to function.

DNS

(

D

omain

N

ame

S

erver): the IP address of your ISP's server,

which translates the names of websites into IP addresses.

ping

: an Internet utility used to determine

whether a particular IP address is online.

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Chapter 5: Setting Up and Configuring the Broadband Router

Advanced Setup Tab - System Management

Broadband Router

Factory Default

The Factory Default feature can be used to clear all of your configuration information and restore the Router to its

factory default settings. Only use this feature if you wish to discard all other configuration preferences.

Click the

Return to Factory Default Setting

button if you want to restore the Router to the factory default

settings. After clicking the button, another screen will appear, confirming that you’d like to restore the factory

default settings. Click

OK

to reboot the Router.

Firmware Upgrade

Users can use the following function to upgrade the Router’s firmware to the newest version. If you have already

downloaded the firmware into your computer, then click the

Browse

button to look for the file. Then, click the

Firmware Upgrade Right Now

button.

Firmware Download

Users can click the

Firmware Download from Linksys Web Site

button to link to the downloads on the Support

page of the Linksys website. Select the Router from the pull-down menu and choose the firmware from the

options. After downloading the firmware, follow the Firmware Upgrade instructions above.

Import Configuration File

Before importing a configuration file, you will need to specify where it is located. Click the

Browse

button, and

select a file that you have previously saved using the Export button in the window that opens. After you select the

file, click the

Import

button. This process may take up to a minute.

You will then need to restart the Router in

order for the changes to take effect.

Export Configuration File

To export a configuration file, click the

Export

button. You will be asked where you would like to store the file.

This file will be called “RV042.exp” by default, but you may rename it if you wish. This process may take up to a

minute.

download:

to receive a file

transmitted over a network.

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Chapter 5: Setting Up and Configuring the Broadband Router

Log Tab - System Log

Broadband Router

Log Tab - System Log

The System Log screen contains three functions: Syslog, E-mail and Log Setting.

Syslog

The System Log (of Syslog) function logs network activity with the use of a separate Syslog server. You need a

Syslog server for this feature to work.

Enable Syslog

: Check this box to enable logging.

Syslog Server

: In addition to the standard event log, the Router can send a detailed log to an external Syslog

server. Syslog is an industry-standard protocol used to capture information about network activity. The Router’s

Syslog captures all log activity and includes every connection source and destination IP address, IP service, and

number of bytes transferred. Enter the Syslog server name or IP address in the

Syslog Server

field. Restart the

Router for logging to take effect.

E-mail

Enable E-Mail Alert

: Check this box to enable E-Mail Alert, informing you of network activity.

Mail Server

: To have a log or alert information e-mailed to you, enter the name or IP address of your SMTP server

here. Your Internet Service Provider can provide you with this information.

Send E-mail To

: This is the E-mail address where your log files will be sent. Leave this field blank if you do not

want to receive copies of your log information.

Log Queue Length

: The default length is 50 entries. The Router will e-mail the log when the number of log

entries exceeds the queue.

Log Time Threshold

: The default time is 10 minutes. In this case, the Router will e-mail the log every 10

minutes.

The Router will e-mail the log when it meets either the Log Queue Length or Log Time Threshold settings.

E-mail Log Now

: Click the

E-mail Log Now

button to immediately send the log to the address in the

Send E-mail

to

field.

Figure 5-29: Log Tab - System Log

byte:

aunit of data that is

usually eight bits long

SMTP

(

S

imple

M

ail

T

ransfer

P

rotocol): the

standard e-mail protocol on the Internet.

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Chapter 5: Setting Up and Configuring the Broadband Router

Log Tab - System Statistics

Broadband Router

Log Setting

Alert Log

Check the appropriate box when you want receive alert logs for any of the following events:

Syn Flooding

,

IP

Spoofing

,

Win Nuke

,

Ping of Death

and

Unauthorized Login Attempt

.

General Log

Check the appropriate box when you want to receive alert logs for any of the following events:

System Error

Messages

,

Deny Policies

,

Allow Policies

,

Configuration Changes

and

Authorized Login

.

View System Log

: Click this button to view

ALL

logs,

System Log

,

Access Log

,

Firewall Log

, or

VPN Log

.

Outgoing Log Table

: Click this button to view the outgoing packet information.

Incoming Log Table

: Click this button to view the incoming packet information.

Clear Log Now

: This button will clear out your log without e-mailing it. Only use this button if you don't mind

losing your log information.

Click the

Save Settings

button to save your Log settings, or click the

Cancel Changes

button to undo the

changes.

Log Tab - System Statistics

This tab displays the system statistics including the Device Name, Status, IP Address, MAC Address, Subnet

Mask, Default Gateway, DNS, Received Packets, Sent Packets, Total Packets, Received Bytes, Sent Bytes, Total

Bytes, Error Packets Received and Dropped Packets Received for the Ethernet ports as well as both of the

Internet ports.

Click the

Refresh

button to update these statistics.

Figure 5-30: Log Tab - System Statistics

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Appendix A: Troubleshooting

Common Problems and Solutions

Broadband Router

Appendix A: Troubleshooting

This appendix provides solutions to problems that may occur during the installation and operation of the Router.

Read the descriptions below to help solve your problems. If you can't find an answer here, check the Linksys

website at

www.linksys.com

.

Common Problems and Solutions

1.

I need to set a static IP address on a PC.

The Router, by default, assigns an IP address range of 192.168.1.100 to 192.168.1.149 using the DHCP server

on the Router. To set a static IP address, you can only use the ranges 192.168.1.2 to 192.168.1.99 and

192.168.1.150 to 192.168.1.254. Each PC or network device that uses TCP/IP must have a unique address to

identify itself in a network. If the IP address is not unique to a network, Windows will generate an IP conflict

error message.

You can assign a static IP address to a PC by performing the following steps:

For Windows 98 and Millennium:

A.

Click

Start

,

Setting

, and

Control Panel

. Double-click

Network

.

B.

In

The following network components are installed

box, select the

TCP/IP

-> associated with your

Ethernet adapter. If you only have one Ethernet adapter installed, you will only see one TCP/IP line with no

association to an Ethernet adapter.

Highlight it and click the

Properties

button.

C.

In the

TCP/IP properties

window, select the

IP address

tab, and select

Specify an IP address

. Enter a

unique IP address that is not used by any other computer on the network connected to the Router. You can

only use an IP address in the ranges 192.168.1.2 to 192.168.1.99 and 192.168.1.151 to 192.168.1.254.

Make sure that each IP address is unique for each PC or network device.

D.

Click the

Gateway

tab, and in the

New Gateway

prompt, enter

192.168.1.1

, which is the default IP

address of the Router. Click the

Add

button to accept the entry.

E.

Click the

DNS

tab, and make sure the

DNS Enabled

option is selected. Enter the Host and Domain names

(e.g., John for Host and home for Domain). Enter the DNS entry provided by your ISP. If your ISP has not

provided the DNS IP address, contact your ISP to get that information or go to its website for the

information.

F.

Click the

OK

button in the

TCP/IP properties

window, and click

Close

or the

OK

button for the

Network

window.

G.

Restart the computer when asked.

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