Step1: Login to your cPanel account.
Step 2: Go to Dynamic DNS domain under Domain.
Step 3: Click Create Button. Enter a subdomain in the text box and select a domain from the menu
Step 4: Click Manually Enter an IP Address to add an IP address and enter IPV4 or IPV6 address.
Step 5: Click Create
Step 6: To add the new web call URL to your router/devices configuration for the new Dynamic DNS Domain.