3Com Router WL-602 User Manual

System Tools119
TracerouteTraceroute is the program that shows you the route over the network 
between two systems, listing all the intermediate routers a connection 
must pass through to get to its destination. It can help you determine 
why your connections to a given server might be poor, and can often help 
you figure out where exactly the problem is. It also shows you how 
systems are connected to each other, letting you see how your ISP 
connects to the Internet as well as how the target system is...

120CHAPTER 5: CONFIGURING THE ROUTER
DNS LookupDNS Lookup is the process of resolving an IP address
(i.e. 192.168.11.137) to a host name (i.e. xxxcompany.net). 
Figure 102   DNS Lookup Screen
1Enter the IP address or domain name in the IP Address or Domain Name 
field, and click Dns lookup. 
2The Router keeps a log of the DNS lookup test, click Clear Log to delete 
the records. 
DiagnosticThis screen is designed to collect diagnostic information of this Router, 
click the Start button to start the...

Status and Logs121
Status and LogsYou can use the Status Screen to view version numbers for your Router’s 
software and hardware and check the status of connections to WAN, 
LAN and WLAN interfaces.
StatusThis screen shows Router status and statistics.
■Release - use this button to release the current IP. 
■Renew - use this button to obtain a new IP. 
Figure 104   Status Screen 

122CHAPTER 5: CONFIGURING THE ROUTER
Routing TableThis screen displays details for the default routing used by your Router 
and any routing created using Static Routing or RIP.
Figure 105   Routing Table Screen
LogsThis screen shows any attempts that have been made to gain access to 
your network as well as the system activities.
Figure 106   Logs Screen
■Click Help to view the help file.
■Click Save to save the log to the hard disk as a text file. When 
prompted for a location to save the file to,...

Status and Logs123
Traffic StatisticsThis screen shows the traffic statistics. Use the Refresh button to update 
the information. Note that the current implementation only shows traffic 
statistics per forwarding group. Hence if QoS is not enabled, this screen 
will always show zero values.
Figure 107   Traffic Statistics Screen  

124CHAPTER 5: CONFIGURING THE ROUTER
Support/FeedbackYou can use the Support/Feedback screen to obtain support and help, 
and also provide feedback to 3Com. 
Support
Figure 108   Support Screen
This screen shows support information.
FeedbackTo provide feedback to 3Com, please click Provide Feedback, and this will 
connect you to the 3Com Web site.
Figure 109   Feedback Screen
This screen shows feedback information. 

6
TROUBLESHOOTING
Basic Connection 
ChecksThe Router has been designed to aid you when detecting and solving 
possible problems with your network. These problems are rarely serious; 
the cause is usually a disconnected or damaged cable, or incorrect 
configuration. If this section does not solve your problem, contact your 
supplier for information on what to do next.
Perform these actions first:
■Ensure all network equipment is powered on.
■Power each piece of network equipment off, wait about five...

126CHAPTER 6: TROUBLESHOOTING
damaged and that it is correctly inserted at both ends. You may find 
that a TP cable works when connected to the Router, but does not 
work if disconnected from the Router and connected to another 
device. This may be because the other device does not have the 
automatic MDI/MDIX feature.
Browsing to the 
Router 
Configuration 
ScreensIf you have connected your Router and computers together but cannot 
browse to the Router configuration screens, check the following:...

Connecting to the Internet127
Connecting to the 
InternetIf you can browse to the Router configuration screens but cannot access 
Web sites on the Internet, check the following:
■Confirm that the physical connection between the Router and the 
cable/DSL modem is OK, and that the Cable/DSL LED on the Router is 
illuminated.
■Ensure that you have entered the correct information into the Router 
configuration screens as required by your Internet Service Provider. Use 
the Internet Settings screen to verify...

128CHAPTER 6: TROUBLESHOOTING
Wireless 
Networking■Ensure that you have an 802.11b or 802.11g or 802.11n wireless 
adapter for each wireless computer, and that it is correctly installed 
and configured. Verify that each wireless computer has either 
Windows 98 or higher or MAC OS 8.5 or higher.
■Verify that your wireless computers are configured to work in 
Infrastructure mode and not Ad Hoc mode. The Router contains an 
Access Point that is designed to operate in Infrastructure mode. Ad 
Hoc mode is not...