TMS zl Management and Configuration Guide ST.1.1.100226

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Firewall
Firewall Access Policies
If you modify access policy 2 to permit only HTTPS traffic, the connection will
be reevaluated against the modified policy. The modified policy does not
permit the traffic, so the connection is dropped. When the endpoint in the
Internal zone attempts to reconnect, the connection request is evaluated
against all of the Internal-to-DMZ policies. In Figure 4-17, you can see that the
traffic is now permitted by Internal-to-DMZ policy 3.
Figure 4-17. Example Firewall Access Policy Process for Modifying Policies