When creating a policy to allow specific applications,
you must also be sure that you are allowing any other applications
on which the application depends. In many cases, you do not have
to explicitly allow access to the dependent applications for the
traffic to flow because the firewall is able to determine the dependencies
and allow them implicitly. This implicit support also applies to
custom applications that
are based on HTTP, SSL, MS-RPC, or RTSP. Applications for which
the firewall cannot determine dependent applications on time will
require that you explicitly allow the dependent applications when
defining your policies. You can determine application dependencies
from within your application-based security policy workflow using
one of the following:
