3Com Router WL-537 User Manual

LAN Settings65
3Enter your PPP over Ethernet user name in the  PPPoE User Name text box.
4 Enter a password in the  PPPoE Password text box.
5 Enter your PPP over Ethernet service name in the  PPPoE Service Name text 
box. Not all ISPs require a PPPoE service name. Only enter a service name 
if your ISP requires this.
6 Enter the  MTU value supplied by your ISP. If you  do not know this, leave it 
at the default value. The default is 1454.
7 Select an idle time from the  Maximum Idle Time drop-down...

66CHAPTER 5: ROUTER CONFIGURATION
To setup the Router for use with a PPTP connection, use the following 
procedure:
1 Select  PPTP (used by some European providers)  in the IP Allocation Mode
field. 
2 Enter your PPTP server address in the  PPTP Server Address text box (this is 
typically the address of your modem).
3 Enter your PPTP user name in the  PPTP User Name text box.
4 Enter your password in the  PPTP Password text box.
5 Enter the  MTU value supplied by your ISP. If you do not know this, leave...

LAN Settings67
Heart Beat Signal
Check with your ISP to make su re they support Heart Beat Signal.
To set up the Router for use with a  Heart Beat Signal connection, use the 
following procedure:
1 Select  Heart Beat Signal (For  Australia only) in the IP Allocation Mode
field.
2 Enter the  Host Name (optional).
Some ISPs require a host name. If your ISP has this requirement, enter the 
host name in the  Host Name text box.
3 Enter your Heart Beat  Signal user name in the  Heart Beat Signal User 
Name...

68CHAPTER 5: ROUTER CONFIGURATION
FirewallOn the main frame of the  Firewall setup screen is a menu with six tabs: 
Virtual Servers ,Special Applications ,PCs Privileges ,URL Filter ,Content 
Filter  and  SPI.
Virtual Servers Selecting the Firewall option on the main menu  displays the Virtual 
Servers setup screen. 
Virtual Servers Screen
DMZ (De-Militarized Zone) Host is a  computer without the protection of 
the firewall. This feature allows a single computer to be exposed to 
unrestricted 2-way...

Firewall69
Virtual Server
Activating and configuring a virtual server allows one or more of the 
computers on your network to function as a public server. For example, 
one of your computers could be configur ed as an FTP server, allowing 
others outside of your office network  to download files of your choosing. 
Or, if you have created a We b site, you can configure one of your 
computers as a Web server, so that others can view your Web site.
If you want to host ftp server or  online gaming, you must...

70CHAPTER 5: ROUTER CONFIGURATION
Special Applications Special Applications Screen
Select Special Apps  tab to display  Authorized Application  setup screen. 
Some software applications require special or multiple connections to the 
Internet and these would normally be blocked by the firewall. For 
example Internet Telephony or Video conferences require multiple 
connections.
So that these special applications can work properly and are not blocked, 
the firewall needs to be told about  them. In each...

Firewall71
Only one computer on your net work can use the special application at 
any one time.
SPI Select Firewall from the main menu, then select the SPI to display the 
SPI screen. !SPI Screen
Check the  Enable SPI and Anti-Dos  Firewall protection check box to 
enable SPI. !When this feature is enabled, all incoming packets will be 
blocked except for those types that you  allow in the Stateful Packet 
Inspection section.
Web Filters :You can select to filter Proxy, Java, ActiveX, and/or Cookies....

72CHAPTER 5: ROUTER CONFIGURATION
QOS
QoS(Quality of Service)  manages information as it is transmitted and 
received. It ensures better service  to those application with a higher 
priority.
Click  Save  to save the setting.
Internet Access Policy 
You can setup policies that deny or allow specific clients to access the 
Internet.
Enter Policy Name ;!Enter a name for the ploicy. 

Firewall73
Status:Choose to enable or disable the selected policy.
PCs :Click on the  Edit List button to specify the network clients. Policy 
only applies to the PCs that are in the list.
You can specify each client by its  MAC Addressor IP Address. You can also 
specify a group of clients by enter ing their IP Address Range. Once you 
have specified all the clients, click  Save.
Access Restrictions : Select to Deny or Allow  the specified clients to 
access the Internet by  Day and  Time .
Blocked...

74CHAPTER 5: ROUTER CONFIGURATION
Website Blocking
You can block the specified clients from accessing certain websites by URL 
or Keyword.
Enter the URL or the Keyword you wish to block.
Click Save to save the setting.
To view all the policies, click the  Summary button.