ADSL Gateway with 4-Port Switch
The Security Tab
Firewall
When you click the Security tab, you will see the Firewall screen. This screen contains Filters and the option to Block WAN Requests. Filters block specific Internet data types and block anonymous Internet requests.
•Firewall. To add Firewall Protection, click Enabled. If you do not want Firewall Protection, click Disabled. Additional Filters. Select the filter(s) you want to enable.
•Filter Proxy. Use of WAN proxy servers may compromise the Gateway's security. Denying Filter Proxy will disable access to any WAN proxy servers.
•Filter Cookies. A cookie is data stored on your computer and used by Internet sites when you interact with them.
•Filter Java Applets. Java is a programming language for websites. If you deny Java Applets, you run the risk of not having access to Internet sites created using this programming language.
•Filter ActiveX. ActiveX is a programming language for websites. If you deny ActiveX, you run the risk of not having access to Internet sites created using this programming language.
•Filter Multicast. IP Multicasting occurs when a single data transmission is sent to multiple recipients at the same time. Using this feature, the Router allows IP multicast packets to be forwarded to the appropriate computers.
Block WAN requests
Figure 5-13: Security Tab - Firewall
multicasting: sending data to a group of destinations at once
•Block Anonymous Internet Requests. This keeps your network from being “pinged” or detected and reinforces your network security by hiding your network ports, so it is more difficult for intruders to discover your network. Select Block Anonymous Internet Requests to block anonymous Internet requests or de- select it to allow anonymous Internet requests.
Click View Logs to view a log of any firewall events.
When finished making your changes on this tab, click the Save Settings button to save these changes, or click the Cancel Changes button to undo your changes.
Chapter 5: Configuring the ADSL Gateway | 22 |
The Security Tab
