Netgear FVS328 Manual De Referência
Model FVS328 ProSafe VPN Firewall with Dial Back-up Reference Manual
6-12
Protecting Your Network
May 2004, 202-10031-01
Outbound Rule Example: Blocking Instant Messaging
If you want to block Instant Messenger usage by employees during working hours, you can create
an outbound rule to block that application from any internal IP address to any external address
according to the schedule that you have created in the Schedule menu. You can also have the router
log any attempt to use Instant Messenger during that blocked period.
an outbound rule to block that application from any internal IP address to any external address
according to the schedule that you have created in the Schedule menu. You can also have the router
log any attempt to use Instant Messenger during that blocked period.
Figure 6-8: Rule example: Blocking Instant Messenger
Other Rules Considerations
The order of precedence of rules is determined by the position of the rule on a list of many rules.
Also, there are optional Rules settings you can configure. These topics are presented here.
Also, there are optional Rules settings you can configure. These topics are presented here.
Order of Precedence for Rules
As you define new rules, they are added to the tables in the Rules menu. For any traffic attempting
to pass through the firewall, the packet information is subjected to the rules in the order of the
entries 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. The Move button allows you to relocate a defined rule to a new position in
the table.
to pass through the firewall, the packet information is subjected to the rules in the order of the
entries 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. The Move button allows you to relocate a defined rule to a new position in
the table.