Managing subnet ranges

To display the table of subnet ranges, go to the SD-WAN → IPAM section and select the Subnet pools tab. Information about subnet ranges is displayed in the following columns of the table:

• Name is the name of the subnet range.
• CIDR is the IPv4 prefix of the subnet range.
• Usage is the number of subnets that have been assigned to network interfaces.

The actions you can perform with the table are described in the Managing solution component tables instructions.

Creating a subnet range

To create a subnet range:

1. In the menu, go to the SD-WAN → IPAM section.

   By default, the IP pools tab is selected, displaying a table of IP address ranges.

2. Select the Subnet pools tab.

   A table of subnet ranges is displayed.

3. In the upper part of the page, click + Subnet pool.
4. This opens a window; in that window, in the Name field, enter the name of the subnet range. The maximum length of the name is 32 characters.
5. In the Base CIDR field, enter the IPv4 prefix of the subnet range.
6. In the Sub-prefix field, enter the length of the IPv4 subnet prefix in the subnet range. Range of values: 0 to 32.
7. Click Create.

The subnet range is created and displayed in the table.

Editing a subnet range

To edit a subnet range:

1. In the menu, go to the SD-WAN → IPAM section.

   By default, the IP pools tab is selected, displaying a table of IP address ranges.

2. Select the Subnet pools tab.

   A table of subnet ranges is displayed.

3. Click the subnet range that you want to edit.

   The settings area is displayed in the lower part of the page. You can expand the settings area to fill the entire page by clicking the expand icon . By default, the Configuration tab is selected, displaying the settings of the subnet range.

4. This opens a window; in that window, if necessary, edit the following settings:
   • Name of the subnet range
   • IPv4 prefix of the subnet range
   • IPv4 prefix length of subnets in the subnet range
5. In the upper part of the settings area, click Save to save subnet range settings.

The subnet range is modified and updated in the table.

Viewing the usage of a subnet range

You can see which CPE templates and CPE devices are using a subnet range. If a subnet range is in use, it cannot be deleted. You can also view information about subnets that have been assigned from the subnet range.

To view the usage of a subnet range:

1. In the menu, go to the SD-WAN → IPAM section.

   By default, the IP pools tab is selected, displaying a table of IP address ranges.

2. Select the Subnet pools tab.

   A table of subnet ranges is displayed.

3. Click the CPE template for which you want to view usage information.

   The settings area is displayed in the lower part of the page. You can expand the settings area to fill the entire page by clicking the expand icon . By default, the Configuration tab is selected, displaying the settings of the subnet range.

4. View the usage of the subnet range in one of the following ways:
   • If you want to see which CPE devices are using a subnet range, select the Usage → CPE tab.

     A list of CPE devices that are using the subnet range is displayed.

   • If you want to see which CPE templates are using a subnet range, select the Usage → Template tab.

     A list of CPE templates that are using the subnet range is displayed.

5. If you want to view information about subnets that have been assigned from the subnet range, select the Leases tab.

   A table of subnets assigned from the subnet range is displayed. Information about subnets is displayed in the following columns of the table:

   • CIDR is the IPv4 prefix of the subnet that was assigned from the subnet range.
   • CPE is the CPE device to which an IPv4 address from the subnet subnet is assigned.
   • Name is the name of the network interface to which an IPv4 address from the subnet is assigned.
   • Tenant is the tenant to which the CPE device has been added.

The actions you can perform with the lists and table are described in the Managing solution component tables instructions.

Deleting subnet ranges

You cannot delete a subnet range if it is being used by at least one CPE template or CPE device. To remove a subnet range that is used by CPE templates or CPE devices, you must first remove the subnet range from network interface settings and BGP settings. You can see which CPE templates and CPE devices are using a subnet range.

Deleted subnet ranges cannot be restored.

To delete subnet ranges:

1. In the menu, go to the SD-WAN → IPAM section.

   By default, the IP pools tab is selected, displaying a table of IP address ranges.

2. Select the Subnet pools tab.

   A table of subnet ranges is displayed.

3. To delete an individual subnet range:
   1. Click the subnet range that you want to delete.

      The settings area is displayed in the lower part of the page. You can expand the settings area to fill the entire page by clicking the expand icon . By default, the Configuration tab is selected, displaying the settings of the subnet range.

   2. In the upper part of the settings area, under Actions, click Delete.
4. To delete multiple subnet ranges:
   1. Select check boxes next to subnet ranges that you want to delete.
   2. In the upper part of the table, click Actions → Delete.
5. In the confirmation window, click Delete.

The subnet ranges are deleted and are no longer displayed in the table.