Packet Filtering - Secure Computing SG300 User Manual

Packet Filtering

Packet filter rules match traffic based on a combination of the source and destination
address, incoming and outgoing interface, and destination service. Matched packets
may be allowed or disallowed.
Packet filter rules
Click Packet Filter Rules.
Click New to add a new filter rule.
Any rules that have already been defined are displayed. You may Edit or
Disable/Enable these rules by clicking the appropriate icon.
You may also add a new rule above an existing one by clicking the Add Above icon.
Note
The first matching rule determines the action for the network traffic, so the order of the
rules is important. You can use the Move Up and Move Down icons to change the order.
The rules are evaluated top to bottom as displayed on screen.
Adding or modifying a rule is shown in the following figure:
Firewall
144