3Com Router WL-537 User Manual

Advanced85
SecuritySelect Security  to display the Security screen.
Security Screen
The Internet connects millions of computer users throughout the world. 
The vast majority of th e computer users on the Internet are friendly and 
have no intention of breaking into,  stealing from, or damaging your 
network. However, there are hack ers who may try to break into your 
network. The options in the  Security tab features help you to protect your 
network.
Advanced Settings
The Advanced Sett ings section of...

86CHAPTER 5: ROUTER CONFIGURATION
3Com recommends that you leave this feature disabled for maximum 
security.
■Allow PING from the Internet - PING is a utility, which is used to 
determine whether a device is active  at the specified IP address. PING 
is normally used to test the ph ysical connection between two devices, 
to ensure that everything is working correctly. 
By default the Router has PING disabled in order to make the device 
more difficult to find on th e Internet and less prone to attack....

Advanced87
To remotely administer yo ur Router, enter 
http://xxx.xxx.xxx.xxx:8000  in the location bar of the browser 
running on the remote computer, where  xxx.xxx.xxx.xxx is the Internet IP 
address of the Router. You may then login using the administration 
password.
Your Internet IP address can be found  at the bottom of the screen. .
Syslog Select Syslog to display the syslog screen.
Check on the check box to enable  this feature, and then click Save. 

88CHAPTER 5: ROUTER CONFIGURATION
Status and LogsSelecting Status and Logs  from the main menu displays the  Status,!
Logs
-and Routing Table in yur Web browser window. 
Status The Status  screen displays a tabular repres entation of your network and 
Internet connection. 
Status Screen  

Status and Logs89
LogsLogs will allow you to view both the normal events, and security threats 
logged by the Router.
Logs Screen
Select Incoming Log or Outgoing Log from the  Ty p e drop-down menu. 
The Incoming Log will display a temporary log of the Source IP Addresses 
and Destination Port Numbers fo rthe in coming Internet trafic. Click the 
Save Log button to save this information to !a file on your PC's hard drive. 
Click the Refresh button to update the log.  click the Clean button to clear...

90CHAPTER 5: ROUTER CONFIGURATION
Select the Routing table tab to  display routing information used by the 
Router. The information is displayed in  the form at shown as below.
Selecting Support/Feedback  from the main menu displays the  Support
and  Feedback  screens.
Support Support Screen
Selecting the  Support option on the main menu displays the support links 
screen, which contains a list of Inter net links that provide information and 
support concer ning the Router /Routing Table
Support/Feedback 

Status and Logs91
FeedbackFeedback Screen
Selecting the  Feedback option displays the Feedback screen and allows 
you to provide feedback to 3Com on the operation of your Router . This 
screen should not be used to obtain technical support. 

92CHAPTER 5: ROUTER CONFIGURATION 

6
TROUBLESHOOTING
Basic Connection 
Checks■Check that the Router is connected to your co mputers and to the 
cable/DSL modem, and that all the eq uipment is powered on. Check 
that the LAN Status and Cable/DSL Status LEDs on the Router are 
illuminated, and that any corr esponding LEDs on the cable/DSL 
modem and the NIC are also illuminated.
■Ensure that the computers have completed their start-up procedure 
and are ready for use. Some network interfaces may not be correctly 
initialized until the...

104CHAPTER 6: TROUBLESHOOTING
Connections  tab and click on the  LAN Settings button at the bottom. 
Make sure that the  Proxy Server option is unchecked.
■If you cannot browse to the Router, use the  winipcfg utility in 
Windows 95/98/ME to verify th at your computer has received the 
correct address information from the Router. From the  Start menu, 
choose Run and then enter  winipcfg. Check that the computer has 
an IP address of the form 192.168.1.xxx (where xxx is in the range 
2-254), the subnet...