Netgear FVS338 사용자 설명서

4-6

Firewall Protection and Content Filtering

Remember that allowing inbound services opens holes in your VPN firewall. Only enable those 
ports that are necessary for your network. It is also advisable to turn on the server application 
security and invoke the user password or privilege levels, if provided.

As you define new rules, they are added to the tables in the Rules menu, as shown in 

Figure 4-1

For any traffic attempting to pass through the firewall, the packet information is subjected to the 
rules in the order shown in the Rules Table, beginning at the top and proceeding to the default rules 
at the bottom. In some cases, the order of precedence of two or more rules may be important in 
determining the disposition of a packet. For example, you should place the most strict rules at the 
top (those with the most specific services or addresses). The Up and Down buttons allow you to 
relocate a defined rule to a new position in the table.

Note: Some residential broadband ISP accounts do not allow you to run any server 

processes (such as a Web or FTP server) from your location. Your ISP may 
periodically check for servers and may suspend your account if it discovers any 
active services at your location. If you are unsure, refer to the Acceptable Use 
Policy of your ISP.