TIP: After you have created a rule, you can open the Rules Properties dialog box by right clicking the rule and selecting Properties.

Step 4: Creating the IP Filter List and Filters for the Rule

An IP filter list can contain one or more filters. IPsec uses the filters to determine which rule to apply to an IP packet. The IP Security configuration utility displays the rules for a policy in reverse alphabetical order based on the name of the IP filter list for the rule.

Filter Order There is no method for specifying the search or priority order for the filters in a rule or for the order of rules in a policy. The Windows IP Security module automatically creates an internal filter list and orders the filters from most specific to least specific.

Use the following procedure to configure the IP filter list and a filter:

1.Create an IP filter list.

Select the IP Filter tab from the Rule Properties dialog box.

The IP Filter List tab shows a list of filters already defined for IP Security policies. Each rule can have only one filter list, but the filter list can specify multiple filters. In this example, we will create a new filter list that contains one filter.

Click Add at the bottom of the dialog box.

The IP Security configuration utility opens the IP Filter List dialog box. In the Name field, enter a name for the filter list. This name is used only for internal identification. Optionally, add a description. In Figure 4, the administrator enters the name foo.

Clear the Use Add Wizard box check box if it is selected. Click Add.

Figure 4 Creating an IP Filter List

18