Making Additional Customizations › Set Up Application Mapping › Create a Host Application Mapping Rule

Create a Host Application Mapping Rule

Create a Host application mapping rule to combine, separate, or identify traffic based on its source host. For example, a Host application mapping rule can report the total traffic from a particular server or from an application on the server.

Follow these steps:

1. Open the Application Definitions page:
   1. Select Administration from the NFA console menu.

      The Administration page opens.

   2. Select Application Definitions in the Administration menu.

   The Application Definitions page opens.

2. Verify that Application Mapping is the selected value for Rules.
3. Click Add Rule.

   The Add Application Mapping dialog opens.

4. Select Host from the list of rule types at the top of the dialog.

   The Add Application Mapping dialog switches to Host rule mode.

5. Specify values for the following settings:
   • Host: IP address of the server whose network traffic you are mapping
   • ToS: Type of Service (ToS) to use as a filter for the collected data. To match all ToS values, accept the default value of ALL or leave the ToS box blank.
   • Protocol: Protocol of the data that is affected by the rule, either TCP or UDP
   • Port: Port to use for collecting data. To match all ports, accept the default value of ALL or leave the Port box blank.
   • Destination Port: Target port that collects the mapped data

     If you specify a destination port that is already used by other rules, the traffic for the related rules will be combined.

   • (Optional) Click Check to run a general check to detect whether the specified port is already receiving data. The check fails if the port is receiving native data--that is, data that is not mapped by application mapping rules. If any native data is on the specified destination port, that data is redirected to the rebase port.
   • Name: Identifier for the rule as it is listed on the Application Definitions page

     The rule name also is the label for the mapped traffic in certain reports. If other rules map traffic to the same destination port that you specify for this rule, specify the name that you want to use for the combined traffic.

   • Description: (Optional) Additional descriptive text to identify the rule type and its use, which is displayed only on the Application Definitions page
6. Click Save.

   The dialog closes. The new rule is added to the Application Mapping rule list. If any other rules map traffic to the same port and you specified a new rule name, the other rule names are updated.

7. (Optional) Run reports to verify that the traffic on the designated destination port fits the rule.
8. (Optional) Review the effects of the new or changed application mapping rules on reports, then consider renaming the rule to label the mapped traffic more clearly in reports.