ADSL2 Gateway with 4-Port Switch
•Subnet Mask. The Subnet Mask (also known as the Network Mask) determines which portion of an IP address is the network portion, and which portion is the host portion.
•Gateway. This IP address should be the IP address of the gateway device that allows for contact between the Gateway and the remote network or host.
•Hop Count. Hop Count is the number of hops to each node until the destination is reached (16 hops maximum). Enter the Hop Count in the field.
•Show Routing Table. Click the Show Routing Table button to open a screen displaying how data is routed through your LAN. For each route, the Destination IP address, Subnet Mask, Gateway, and Interface are displayed. Click the Refresh button to update the information. Click the Close button to return to the previous screen.
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.
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. To add Firewall Protection, click Enable. If you do not want Firewall Protection, click Disable.
Additional Filters
•Filter Proxy. Use of WAN proxy servers may compromise the Gateway's security. Denying Filter Proxy will disable access to any WAN proxy servers. To enable proxy filtering, click Enabled.
•Filter Cookies. A cookie is data stored on your computer and used by Internet sites when you interact with them. To enable cookie filtering, click Enabled.
•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. To enable Java Applet filtering, click Enabled.
•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. To enable ActiveX filtering, click Enabled.
Chapter 5: Configuring the Gateway
Figure 5-13: Routing Table List
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The Security Tab
