Cisco Cisco Web Security Appliance S690 Guida Utente

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Cisco IronPort AsyncOS 7.7 for Web User Guide
Chapter 18      Understanding Application Visibility and Control
Controlling Instant Messaging Traffic
Step 4
Click the link next to “Bandwidth Limit” for the application type you want to edit.
Step 5
To choose a different bandwidth limit value, select Set Bandwidth Limit and enter the amount of traffic 
to limit in either Megabits per second (Mbps) or kilobits per second (kbps). To specify no bandwidth 
limit, select No Bandwidth Limit for Application Type.
Step 6
Click Done.
Step 7
Submit and commit your changes.
Configuring Bandwidth Controls for an Application
Step 1
Navigate to the Web Security Manager > Access Policies page.
Step 2
Click the link in the policies table under the Applications column for the policy group you want to edit. 
Step 3
Expand the application type that contains the application you want to define.
Step 4
Click the link for the application you want to configure. 
Step 5
Select Monitor, and then choose to use either the bandwidth limit defined for the application type or no 
limit.
Note
The bandwidth limit setting is not applicable when the application is blocked or when no bandwidth limit 
is defined for the application type.
Step 6
Click Done.
Step 7
Submit and commit your changes.
Controlling Instant Messaging Traffic
You can use the AVC engine to apply control settings to some instant messenger (IM) traffic that runs 
on top of HTTP. You can block or monitor the IM traffic, and depending on the IM service, you can block 
particular activities (also known as application behaviors) in an IM session. For example, you can allow 
an IM session with a particular IM service provider, but block file transfers within that session.
The AVC engine does not control native IM traffic.
You control IM traffic by configuring Instant Messenger application settings on the Applications 
Visibility and Control page of Access Policies.
Step 1
Navigate to the Web Security Manager > Access Policies page.
Step 2
Click the link in the policies table under the Applications column for the policy group you want to edit. 
Step 3
Expand the Instant Messaging application type.
Step 4
Click the link next to the IM application you want to configure.
Step 5
To block all traffic for this IM application, select Block.
Step 6
To monitor the IM application, but block particular activities within the application, select Monitor, and 
then select the application behavior to block.