Maintain Custom Timeouts for Data Center Applications
Easily maintain custom timeouts for applications
as you move from a port-based policy to an application-based policy.
Use this method to maintain custom timeouts instead of overriding
App-ID (losing application visibility) or creating a custom App-ID
(expending time and research).
To get started, configure custom
timeout settings as part of a service object:
Then add
the service object in a policy rule to apply the custom timeouts
to the application(s) the rule enforces.
The following steps
describe how apply custom timeouts to applications; to apply custom
timeouts to user groups, you can follow the same steps but just
make sure to add the service object to the security policy rule
that enforces the users to whom you want the timeout to apply.
Select ObjectsServices to add or modify a
service object.
You can also create service objects as you are defining
match criteria for a security policy rule: select PoliciesSecurityService/URL Category and Add a
new Service object to apply to the application traffic the rule governs.
Select the protocol for the service to use (TCP or UDP).
Enter the destination port number or a range of port
numbers used by the service.
Define the session timeout for the service.
Inherit from application (default)—No
service-based timeouts are applied; instead, apply the application
timeout.
Override—Define a custom session
timeout for the service.
If you chose to override the application timeout and
define a custom session timeout, continue to:
Enter a TCP Timeout value
to set the Maximum length of time in seconds that a TCP session
can remain open after data transmission has started. When this time
expires, the session closes. The value range is 1 - 604800, and
the default value is 3600 seconds.
Enter a TCP Half Closed value
to set the maximum length of time in seconds that a session remains
in the session table between receiving the first FIN packet and
receiving the second FIN packet or RST packet. If the timer expires,
the session closes. The value range is 1 - 604800, and the default
value is 120 seconds.
Enter a TCP Wait Time value to
set the maximum length of time in seconds that a session remains
in the session table after receiving the second FIN packet or a
RST packet. When the timer expires, the session closes. The value
range is 1 - 600, and the default value is 15 seconds.
Click OK to save the service object.
Select PoliciesSecurity and Add or
modify a policy rule to govern the application traffic you want to
control.
Select Service/URL Category and Add the
service object you just created to the security policy rule.