Subnet Management

Create Subnet

You can create a subnet while creating a network.

Alternatively, you can create a subnet for an existing network.

You must be a self-service user or an administrator to perform this operation.

To create a subnet for an existing network, follow the steps given below.

  1. Log in to Clarity.
  2. Click Networks in the left panel.
  3. Click a network name in the list of networks. This is the network for which the subnet is created.
  4. Go to Subnets tab. Create Subnet
  5. Click Create New Subnet.
  6. Enter the following details.

    Field Description
    Subnet name Name of subnet
    Network Address (CIDR) Network address of the subnet
    IP version Version of IP protocol selected. Currently only IPv4 is supported, hence IPv4 is the default value.
    Gateway IP IP address through which devices outside the network can be accessed.
  7. Click Disable Gateway if you want to keep the subnet private.
  8. Click Next.
  9. Select the enable DHCP text box if you wish to enable DHCP addressing.
  10. Enter the allocation pools to select new IP addresses from. Enter the allocation pool in the following format - (for example, 192.0.2.10 - 192.0.2.254).
  11. Enter DNS name server addresses, if applicable.
  12. Enter the host and subnet routes in the format destination_CIDR, next hop (for example, 192.0.2.0/24, 198.51.100.5). If there are multiple route entries, enter each entry on a new line.
  13. Click Next.
  14. Review the configuration details and then click Create if all details have been correctly entered.

A subnet is created with the specifications mentioned in the subnet configuration.

Edit Subnet

You can edit subnet details such as name, allocation pools, DNS name servers, gateway IP, host, and subnet routes. You can modify the enabling or disabling of DHCP and gateway.

You must be a self-service user or an administrator to perform this operation.

To edit a subnet, follow the steps given below.

  1. Log in to Clarity.
  2. Click Networks in the left panel.
  3. Click a network name in the list of networks.
  4. Click the Subnets tab to view a list of existing subnets for the selected network.
  5. Select the checkbox for the subnet to edit from the list of subnets.
  6. Click Edit Subnet on the toolbar seen on the top of the list of subnets. Edit Subnet
  7. Make the required changes.
  8. Click Update Subnet.

The selected subnet is updated with the changes.

Delete Subnet

You can delete a subnet when the subnet is no longer required for use. You may delete multiple subnets at a time.

You must be a self-service user or an administrator to perform this operation.

To delete one or more subnets, follow the steps given below.

  1. Log in to Clarity.
  2. Click Networks in the left panel.
  3. Click a network name in the list of networks.
  4. Click the Subnets tab to view a list of existing subnets for the selected network.
  5. Select the check boxes for one or more subnets to delete, from the list of subnets. Edit Subnet
  6. Click Delete Subnets on the toolbar seen on the top of the list of subnets.
  7. Click Delete Subnets.

The selected subnets are deleted and the subnets are no longer available for use.