Vultr Customer Portal

1. Navigate to Products, expand the Network drop-down and select Reserved IPs from the list of options.
2. Click Add Reserved IP to set up a new reserved IP address.
3. Click the IPv4 Address or IPv6 subnet drop-down to select your existing IP and click Convert.
4. Click Convert IP Address in the confirmation prompt to create a new reserved IP using the existing IP.

Vultr API

1. Send a GET request to the List Instances endpoint and note the target instance IP.
   console

   $ curl "https://api.vultr.com/v2/instances" \
     -X GET \
     -H "Authorization: Bearer ${VULTR_API_KEY}"
   

2. Send a POST request to the Convert Existing IP endpoint to create a new reserved IP using the instance’s IP address.
   console

   $ curl "https://api.vultr.com/v2/reserved-ips/convert" \
      -X POST \
      -H "Authorization: Bearer ${VULTR_API_KEY}"
      -H "Content-Type: application/json" \
      --data '{
        "ip_address": "<instance-ip>",
        "label": "<label>"
      }'

Vultr CLI

1. List all instances in your Vultr account and note the target instance’s IP.
   console

   $ vultr-cli instance list
   

2. Convert the target instance IP to a reserved IP address.
   console

   $ vultr-cli reserved-ip convert --ip="<instance-ip>" --label="<label>"