Adding and modifying an IP range

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Initially, Kaspersky Security Center Linux gets IP ranges for polling from the network settings of the device on which it is installed. If the device address is 192.168.0.1 and the subnet mask is 255.255.255.0, Kaspersky Security Center Linux includes the network 192.168.0.0/24 in the list of polling address automatically. Kaspersky Security Center Linux polls all addresses from 192.168.0.1 to 192.168.0.254. You can modify the automatically defined IP ranges or add custom IP ranges.

You can create a range only for IPv4 addresses. If you enable Zeroconf polling, Kaspersky Security Center Linux will poll the whole network.

To add a new IP range:

1. In the main menu, go to Discovery & deployment → Discovery → IP ranges.
2. To add a new IP range, click the Add button.
3. In the window that opens, specify the following settings:
   • IP range name

     A name of the IP range. You might want to specify the IP range itself as its name, for example, "192.168.0.0/24".

   • IP interval or subnet address and mask

     Set the IP range by specifying either the start and end IP addresses or the subnet address and subnet mask. You can also select one of the already existing IP ranges by clicking the Browse button.

   • IP address lifetime (hours)

     When specifying this parameter make sure that it exceeds the polling interval set in the polling schedule. If an IP address is not verified by polling during the IP address lifetime, this IP address is automatically removed from the polling results. By default, the life span of the polling results is 24 hours, because dynamic IP addresses (assigned using Dynamic Host Configuration Protocol (DHCP)) change every 24 hours.

4. Select Enable IP range polling if you want to poll the subnet or interval that you have added. Otherwise, the subnet or interval that you have added will not be polled.
5. Click the Save button.

The new IP range is added to the list of IP ranges.

You can run polling of each IP range separately by using the Start poll button. When the polling is complete, you can view the list of discovered devices by using the Devices button. By default, the life span of the polling results is 24 hours and it is equal to the IP address lifetime setting.

To add a subnet to an existing IP range:

1. In the main menu, go to Discovery & deployment → Discovery → IP ranges.
2. Click the name of the IP range to which you want to add a subnet.
3. In the window that opens, click the Add button.
4. Specify a subnet by using either its address and mask, or by using the first and last IP address in the IP range. Or, add an existing subnet by clicking the Browse button.
5. Click the Save button.

   The new subnet is added to the IP range.

6. Click the Save button.

The new settings of the IP range are saved.

You can add as many subnets as you need. Named IP ranges are not allowed to overlap, but unnamed subnets inside an IP range have no such restrictions. You can enable and disable polling independently for every IP range.

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