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On this rule, the pre-filter policy makes the decision based on the tunnel header and if you want the tunnel’s header to go on the FTD seamlessly, you must add it to the pre-filter policy.

Tunnel Rule: This rule applies to tunneled traffic such as GRE Tunnel, IP-in-IP and etc.

The following rule types are available for pre-filter policies: For example, you can drop any telnet connection into your network devices using pre-filter policy, because simply, there is no further inspection needed in this kind of traffic. The pre-filter policy is needed to be set to drop as much as possible traffics.

Interactive Block with Reset: Same as Interactive block with a connection resetĪctually, the pre-filter policy is the first line of defense for your network and essentially, it will be set on the interface level.

If the user chooses to continue, it turns into “allow” and is subject to additional inspection.

Interactive Block: Blocks traffic and displays a webpage allowing the user to override and can also set conditions.

Block and Rest: Blocks the traffic and resets the connection.Monitor: Tracks and logs traffic, but does not count as a match.Trust: Allows without any further deep inspection.Allow: Traffic is allowed if all inspections pass.You can also benefit from several rule actions to consider what to do when there is a match available: SGTs: If you have the Cisco ISE on your network, you can leverage the segmentation for security purposes.Applications: This item inspects the traffic for its destination application.Users: You can limit the traffic based on the user that are come from.Networks: You can allow or block any ingress or egress traffic based on the networks.Zone: You can allow or block any ingress or egress traffic based on the zones on your network such as inside or outside zones.You can also use the following as optional matches: In the FTD individual rules can be placed within the categories for easier and more intuitive management. Security Intelligence Feeds and Actions.You can use the following policies in order to cover different scenarios in your network: In this article we are going to investigate the following Cisco FTD features which can be managed by Cisco FMC and FDM.īasically, Cisco Firepower Threat Defense Access Control Policy is an ACL or Access Control List, which binds all of your policies together. Cisco Secure Firewalls (Formerly Cisco Firepower) are the NGFWs using their powerful built-in Cisco FTD features to provide security along consistency and without speed reduction in the networks. Cisco Secure portfolio is consisted of various range of devices assisting enterprises to provide needed security considerations within their networks.