3Com Router WL-537 User Manual

							
Firewall75
Contnet!Filter You can subscribe to the 3Com Content Filter Service, which enables you 
to block or allow the URL of a numb er of pre-defined categories.
The Router comes with  a 14-day free trial of the 3Com Content Filter 
Service. To activate the 14-day free trial of the service, you must first 
register your Router at www.3com.com. To  continue using the service 
after the trial period, you  must purchase the Full 3Com Content Filter 
Service(3CS8CFS).
URL Filtering rules supersede co ntent filtering rules. If the 3Com Content 
Filter is blocking certain Web sites that you want to allow, you can add 
these sites to URL Filter's allow list. 
						

							
76CHAPTER 5: ROUTER CONFIGURATION
To activate Content Filtering:
1 Select Firewall form the main menu, then select the Content Filter tab. 
The Content Filter screen displays.
Figure63 !Content Filter Screen
2 Make sure the  Enable Content Filter  check box is checked.
3 Select the  Content Filter Server  that you require from the drop-down list. 
If you select  custom entry , enter the server IP address in the text box.
4 Select the  Server Timeout  value in milliseconds. The default is 3000 
milliseconds (3 seconds).
5 Select  Allow or Deny  for each displayed category, as required.
Click  Apply  to save the settings.
Click  Save to save  the settings. 
						

							
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System Tools
The main frame of the System To ols screen includes four administration 
items: Restart ,Time Zone, Configuration, and Upgrade .
Restart Restart Screen
If your Router is not  operating correctly, you  can choose to restart the 
Router by selecting  Restart the Router, simulating the effect of power 
cycling the unit. No configuration information  will be lost but the log files 
will be erased. this function may be of use if you are experiencing 
problems and you wish to  re-establish your Internet connection. Any 
network users who are currently accessing the Internet will have their 
access interrupted whilst the restart !takes place, and th ey may need to 
reboot thier computers when  the restart has completed and the Router is 
operational again. 
						

							
78CHAPTER 5: ROUTER CONFIGURATION
Time Zone Time Zone Screen
Choose the time zone that is close st to your actual location. The time 
zone setting is used by the system clock  when displaying the correct time 
in the log files. 
If you use Daylight saving tick the  Enable Day Light savings box, and then 
click  Save.
The Router reads the correct time from NTP servers on the Internet and 
sets its system clock accordingly. The Daylight Savings option merely 
advances the system clock by one hour. It does not cause the system 
clock to be updated fo r daylight savings time automatically. 
						

							
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Configuration Configuration Screen
Select the Configuration  tab to display the  Configuration screen .
Backup Configuration
Click  BACKUP  to save the current Router configuration. You will be 
prompted to download and save a file to disk.
Restore Configuration Data
If you want to reinstate the  configuration settings previously saved to a 
file, press  Browse to locate the backup  file on your computer, and then 
click  RESTORE  to copy the data into the Router's memory. 
The password will remain unchanged.
Reset to Factory Default
If you want to reset the settings on your Router to those that were loaded 
at the factory, click  RESET. You will lose all your configuration changes. 
The Router LAN IP address will  revert to 192.168.1.1, and the DHCP 
server on the LAN will be enabled.  You may need to reconfigure and 
restart your computer to re-e stablish communication with the Router. 
						

							
80CHAPTER 5: ROUTER CONFIGURATION
Upgrade Upgrade Screen
The Upgrade facility allows you to install on the Router any new releases 
of system software that 3Com may make available. To install new 
software, you first need to download  the software from the 3Com 
support web site to a folder on your computer. Once you have done this, 
select Browse  to tell your web browser where this file is on your 
computer, and then click  Apply. The file will be copied to the Router, and 
once this has completed, the Router will re start. Although the upgrade 
process has been designed to preserve your configuration settings, it is 
recommended that you make a backup of the configuration beforehand, 
in case the upgrade process fails for any reason (for example, the 
connection between the computer and the  Router is lost while the new 
software is being copied to the Router). 
						

							
Advanced81
The upgrade procedure can take up  to two minutes, and is complete 
when the Alert LED has stopped flashing and is permanently off. Make 
sure that you do not interrupt power to the Router during the upgrade 
procedure; if you do, the software may be corrupted and the Router may 
not start up properly afterwards. .
AdvancedSelecting Advanced  from the main menu displays the following five tabs 
in your Web browser window:  Static Route,RIP ,Security
!and !Syslog.
Static Route The Router supports static  route functionality. Select the  Static Route tab 
to display the screen /
Static Route screen
The following information is displayed for each static route:
■Index - the index of the static route
■Network Address - the network address of the route. If network 
address and subnet mask are both set to 0.0.0.0, this is the default 
route.
■Subnet Mask - the subnet mask of the route. If network address and 
subnet mask are both set to 0.0.0.0, this is the default route.
■Gateway - the gateway used to route data to the network specified by 
the network address. 
						

							
82CHAPTER 5: ROUTER CONFIGURATION
RIPThe Router supports  the Routing Information Protocol (RIP). RIP allows 
you to set up routing information  on one RIP enabled device, and have 
that routing information replicated to  all RIP enabled devices on the 
network. LAN and WAN interfaces can  be configured independently of 
each other.
Select the RIP tab to display the screen /
RIP screen
Check the  Enable RIP Mode  check box to configure RIP on the Router. 
						

							
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DDNSDynamic Domain Name Server (DDNS) enable s you to map a static 
domain name to a dynamic IP address. The Router supports two DDNS 
providers, TZO.com and DYNDNS.org. Before you can set up DDNS, you 
must obtain an account, passwor d and static domain name from your 
DDNS provider. DDNS is disabled by default. 
To set up DDNS:
1 Select  Advanced  from the main menu, then select the  DDNS tab. The 
DDNS screen displays.
DDNS screen 
						

							
84CHAPTER 5: ROUTER CONFIGURATION
2Select a  DDNS Service  provider from the drop-down list. This can be 
either TZO.com or DynDNS.org.
TZO.com
If you select TZO.com:
1 In the  Domain Name  text box, enter the domain name.
2 In the  E-mail text box, enter the account name.
3 In the  Key text box, enter the account password.
4 Click  Save to make this service active.
DynDNS.org
If you select DYNDNS.org:
1 In the  Host Name  text box, enter the host name.
2 In the  Username  text box, enter the account name.
3 In the  Password  text box, enter the account password.
4 Click  Save
!to make this service active. !