Verification – Cisco Network Discovery Policy
Verification Now you can verify the functionality of network discovery by passing network traffic through a threat defense. First, from your client computers, go to various websites on the Internet. Doing so generates traffic through the threat defense. If the network discovery policy is properly configured and deployed, you will be able to view discovery…
Explore MoreVerification – Cisco IPS-Only Deployment in Inline Mode
Verification Upon a successful deployment, your inside host should be able to communicate with the outside host, and vice versa. If any connection attempt fails, you can verify the configurations on the GUI and check the status in the CLI. Figure 6-13 shows the table view of connection events. The events confirm that hosts 192.168.1.2…
Explore MoreValidation of Interface Configuration – Cisco Firewall Deployment in Routed Mode
Validation of Interface Configuration After the configurations are deployed to the threat defense, the hosts between the inside network and outside network should be able to communicate successfully. To test connectivity, you can simply run an ICMP ping test between the inside and outside hosts. If the hosts are running any services (such as web…
Explore MoreNetwork Discovery Policy – Cisco Network Discovery Policy
Network Discovery Policy To configure a network discovery policy, follow these steps: Step 1. In the management center, navigate to Policies > Network Discovery. The default rule for application discovery appears (see Figure 9-10). The 0.0.0.0/0 and ::/0 networks in default rule enable a Secure Firewall to discover applications from any observed networks. Keep this…
Explore MoreReusable Objects – Cisco Network Discovery Policy
Reusable Objects Managing the rules using IP addresses could be cumbersome when you have an access control policy with thousands of rules. However, if you use objects in a rule, you don’t need to remove the old rule and add a new one to reflect the new IP addresses; rather, you simply edit and update…
Explore MoreTransparent Mode Essentials
Transparent Mode Essentials In transparent mode, a threat defense bridges the inside and outside interfaces into a single Layer 2 network and remains transparent to the hosts. When a threat defense is in transparent mode, the management center does not allow you to assign an IPv4 address to a directly connected interface. As a result,…
Explore MoreTip – Cisco Firewall Deployment in Transparent Mode
Tip Cisco Secure Firewall offers two unique rule actions—Trust and Fastpath—that can expedite management traffic traversing the device. In an access control rule, you can set the action to Trust to let the OSPF traffic go through the threat defense without any further inspection. However, the more optimal method for bypassing an inspection is to…
Explore MoreInterface Setup – Cisco IPS-Only Deployment in Inline Mode
Interface Setup An inline set is a logical group of one or more interface pairs. Before you add an inline set, you must create an inline interface pair and associate the pair with the inline set you want to add. To create an inline set, follow these steps: Step 1. Navigate to Devices > Device…
Explore MoreNetwork Discovery Operations – Cisco Network Discovery Policy
Network Discovery Operations A threat defense can control an application when a monitored connection is established between a client and server, and the application in a session is identified. To identify an application, the threat defense has to analyze the first few packets in a session. Until the identification is complete, the threat defense cannot…
Explore MoreNetwork Discovery Essentials – Cisco Network Discovery Policy
Network Discovery Essentials When you access a website, you interact with at least three types of applications: a browser on a client computer that originates the web communication, an underlying protocol that establishes the communication channel to the web, and the web contents from a server with which you are communicating. When a threat defense…
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