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Reference Manual for the 54 Mbps Wireless ADSL Firewall Router DG834G
Protecting Your Network 5-7
202-10006-01
Remember that allowing inbound services opens holes in your firewall. Only enable those ports
that are necessary for your network. Following are two application examples of inbound rules:
Inbound Rule Example: A Local Public Web Server
If you host a public Web server on your local network, you can define a rule to allow inbound Web
(HTTP) requests from any outside IP address to the IP address of your Web server at any time of
day. This rule is shown in Figure 5-5:
Figure 5-5: Rule example: A Local Public Web Server
The parameters are:
•Service
From this list, select the application or service to be allowed or blocked. The list already
displays many common services, but you are not limited to these choices. Use the Services
menu to add any additional services or applications that do not already appear.
• Action
Choose how you want this type of traffic to be handled. You can block or allow always, or
you can choose to block or allow according to the schedule you have defined in the
Schedule menu.
• Send to LAN Server
Enter the IP address of the computer or server on your LAN which will receive the
inbound traffic covered by this rule.