Using the Application Control Wizard

The Application Control wizard provides safe configuration of App Control policies for many common use cases, but not for everything. If at any time during the wizard you are unable to find the options that you need, you can click Cancel and proceed using manual configuration. When configuring manually, you must remember to configure all components, including match objects, actions, email address objects if required, and finally, a policy that references them. For the manual policy creation procedure, see Configuring an App Rules Policy .

To use the wizard to configure Application Control, perform the following steps:

1	Login to the Dell SonicWALL network security appliance.

2	In the firewall banner at the top of the screen, click the Wizards icon. The wizards Welcome screen displays.

3	Select the Application Control Wizard radio button and then click Next.

4	In the Application Control Wizard Introduction screen, click Next.

5	In the Application Control Policy Type screen, click a selection for the policy type, and then click Next.

You can choose among SMTP, incoming POP3, Web Access, or FTP file transfer. The policy that you create will only apply to the type of traffic that you select. The next screen will vary depending on your choice here.

6	In the Select <your choice> Rules for Application Control screen, select a policy rule from the choices supplied, and then click Next.

Depending on your choice in the previous step, this screen is one of four possible screens:

•	Select SMTP Rules for Application Control

•	Select POP3 Rules for Application Control

•	Select Web Access Rules for Application Control

•	Select FTP Rules for Application Control

7

The screen displayed here will vary depending on your choice of policy rule in the previous step. For the following policy rules, the wizard displays the Set Application Control Object Keywords and Policy Direction screen on which you can select the traffic direction to scan, and the content or keywords to match.

•	All SMTP policy rule types except Specify maximum email size

•	All POP3 policy rule types

•	All Web Access policy rule types except Look for usage of certain web browsers and Look for usage of any web browser, except the ones specified

•	All FTP policy types except Make all FTP access read-only and Disallow usage of SITE command

8	In the Set Application Control Object Keywords and Policy Direction screen, perform the following steps:

•	In the Direction drop-down list, select the traffic direction to scan from the drop-down list. Select one of Incoming, Outgoing, or Both.

•	Do one of the following:

NOTE: If you selected a choice with the words except the ones specified in the previous step, content that you enter here will be the only content that does not cause the action to occur. See Negative Matching .

•	In the Content text box, type or paste a text or hexadecimal representation of the content to match, and then click Add. Repeat until all content is added to the List text box.

•	To import keywords from a predefined text file that contains a list of content values, one per line, click Load From File.

9	Click Next.

If you selected a policy type in the previous step that did not result in the Set Application Control Object Keywords and Policy Direction screen with the standard options, the wizard displays a screen that allows you to select the traffic direction, and certain other choices depending on the policy type.

•	In the Direction drop-down list, select the traffic direction to scan.

•	SMTP: In the Set Maximum Email Size screen, in the Maximum Email Size text box, enter the maximum number of bytes for an email message.

•	Web Access: In the Application Control Object Settings screen, the Content text box has a drop-down list with a limited number of choices, and no Load From File button is available. Select a browser from the drop-down list.

•	FTP: In the special-case Set Application Control Object Keywords and Policy Direction screen, you can only select the traffic direction to scan.

•	Click Next.

10	In the Application Control Action Settings window, select the action to take when matching content is found in the specified type of network traffic, and then click Next.

You will see one or more of the following choices depending on the policy type, as shown below:

 

Table 48. Policy type: Actions available

Policy Type	Available Action
All Types	Log Only
All Types	Bypass DPI
SMTP	Blocking Action - block and send custom email reply
SMTP	Blocking Action - block without sending email reply
SMTP	Add Email Banner (append text at the end of email)
POP3	Blocking Action - disable attachment and add custom text
Web Access	Blocking Action - custom block page
Web Access	Blocking Action - redirect to new location
Web Access	Blocking Action - Reset Connection
Web Access	Manage Bandwidth

11	In the second Application Control Action Settings screen (if it is displayed), in the Content text box, type the text or URL that you want to use, and then click Next.

The second Application Control Action Settings screen is only displayed when you selected an action in the previous step that requires additional text. For a Web Access policy type, if you selected an action that redirects the user, you can type the new URL into the Content text box.

12	In the Select Name for Application Control Policy screen, in the Policy Name text box, type a descriptive name for the policy, and then click Next.

13	In the Confirm Policy Settings screen, review the displayed values for the new policy and do one of the following:

•	To create a policy using the displayed configuration values, click Apply.

•	To change one or more of the values, click Back.

•	To exit the wizard without creating the policy, click Cancel.

14	In the Application Control Policy Complete screen, to exit the wizard, click Close.

NOTE: You can configure Application Control policies without using the wizard. When configuring manually, you must remember to configure all components, including match objects, actions, email address objects if required, and finally, a policy that references them.

Bandwidth Management Methods

Bandwidth Management feature can be implemented in two separate ways:

Figure 17. Bandwidth Management: Implementation methods

•	Per Policy Method

•	The bandwidth limit specified in a policy is applied individually to each policy

•	Example: two policies each have an independent limit of 500kb/s, the total possible bandwidth between those two rules is 1000kb/s

•	Per Action Aggregate Method

•	The bandwidth limit action is applied (shared) across all policies to which it is applied

•	Example: two policies share a BWM limit of 500kb/s, limiting the total bandwidth between the two policies to 500kb/s

Bandwidth Aggregation Method is selected in the App Rules Action Settings screen when the Action type is set as Bandwidth Management.