Filtering Rule Settings

To add or edit a filtering rule

1.In the packet filter rule set creation or modification window, click Add or Edit. This opens a rule creation or rule modification window.

Figure 58. Adding filtering rule

2.Configure the following parameters:

Parameter

Description

Rule name

The name of the created/edited rule.

Description

The rule description.

Action

The action for Firewall to perform when a packet is intercepted:

Block packets—block a packet;

Allow packets—allow a packet.

Direction

The direction of the connection:

Inbound—the rule is applied when a packet is received from the network.

Outbound—the rule is applied when a packet is sent into the network from your computer.

Any—the rule is applied regardless of packet transfer direction.

Logging

The logging mode for the rule. This parameter defines which information should be stored in the log:

Entire packet—log the whole packet.

Headers only—log packet headers only.

Disabled—do no log packet information.

3.You can add a filtering criterion if needed, for example, transport or network protocol, by clicking Add criterion. Add filtering criterion window opens:

Figures 59. Adding filtering criterion

Select the required filtering criterion from the drop-down list. In this window, you can also configure parameters for the selected criterion. You can add any number of filtering criteria. Herewith, the packet should meet all the criteria of the rule in order for the rule action to be applied to the packet.

For certain headers, there are additional criteria available. All added criteria are listed in the edit packet rule window and can be modified.

4.When you finish the adjustments, click OK to save changes or Cancel to exit the window without saving the changes.

Note

If you do not add any criterion, the rule will allow or block all packets depending on the setting specified in the Action field.

If you select Any for the Local IP address and Remote IP address fields, the rule is applied for any packet which contains an IPv4 header and was sent from a physical address of the local computer.