Chapter 4: KX III Administrator Help200Note: CommandCenter Secure Gateway only supports TLS v1.0. Ifyou are using CC-SG, TLS v1.0 will be used to connect with KX IIIeven if it is disabled here.3. Click OK to apply the settings.Configuring IP Access ControlUsing IP access control, you control access to your KX III. Note that IPaccess control restricts traffic of any kind from accessing the KX III, soNTP servers, RADIUS hosts, DNS hosts and so on must be grantedaccess to the KX III.By setting a global Access Control List (ACL) you are ensuring that yourdevice does not respond to packets being sent from disallowed IPaddresses. The IP access control is global, affecting the KX III as a whole,but you can also control access to your device at the group level. SeeGroup-Based IP ACL (Access Control List) (on page 69) for moreinformation about group-level control.Important: IP address 127.0.0.1 is used by the KX III local port. Whencreating an IP Access Control list, 127.0.0.1 should not be within therange of IP addresses that are blocked or you will not have access tothe KX III local port.To use IP access control:1. Select Security > IP Access Control to open the IP Access Controlpage.2. Select the Enable IP Access Control checkbox and the remainingfields on the page.3. Choose the Default Policy. This is the action taken for IP addressesthat are not within the ranges you specify. Accept - IP addresses are allowed access to the KX III device.