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Before you can apply security policies, you must first define the networks that you want to protect from malicious attacks. The first step in configuring BloxOne Threat Defense Cloud is to set up DNS Firewall by defining your remote networks. You identify these external networks by their IP addresses. A network can contain a group of IPv4 addresses or blocks.


If you plan to use multiple external networks in your configuration, Infoblox recommends that you register all your networks as soon as possible. Pre-registering your networks ensures that they will be available when traffic is pointed at them, and prevents IP space belonging to your company from being incorrectly assigned. Please be aware that no protection is provided for traffic pointed to a network that has not yet been registered.

The External Networks page displays all the networks that you have defined. You can select a network and select Edit on the top Action bar to modify its information or select Remove to delete it. When you select a specific external network, you can also view its detailed information on the right panel of the page. Or, you can add a new external network to your configuration by clicking Create.

The Manage -> External Networks page displays the following information for external networks that are currently in your system:

  • NAME: The external network name.
  • DESCRIPTION; An optional description for the external network.
  • IP ADDRESS: The IP address or range of IP addresses where the external network resides. Both IPv4 and IPv6 IP addresses are supported.  
  • POLICY: The security policy applied to the external network. 

When you select an internal network, you can view the user information on the right panel. Click IP Addresses to view the IP addresses associated with the external network. 

You can also do the following in this tab:

  • Click to select the columns you want to display or use the arrow keys to reorder the columns.

  • Click  -> Edit to modify user information. You can also select the respective external network and click the Edit button to do so.

  • Click  -> Remove to delete an external network. You can also select the respective external network and click the Remove button to do so.

  • Select an external network to view additional details in the right panel. You can collapse the right panel by clicking.

  • Enter the value that you want to search in the Search text box. The Cloud Services Portal displays the list of records that match the keyword in the text box.

You can perform the following actions in this tab:

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