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How to Attach Reserved IPs on a Vultr Cloud Compute Instance

Updated on November 27, 2024

Reserved IP addresses enable you to reserve a specific public IP address you can attach to instances. You can attach multiple reserved IPs on a single instance to enable new network interfaces.

Follow this guide to attach reserved IPs on a Vultr Cloud Compute instance using the Vultr Customer Portal, API, or CLI.

  • Vultr Customer Portal
  • Vultr API
  • Vultr CLI

  1. Navigate to Products, expand the Network group and click Reserved IPs.

    Navigate to reserved IPs

  2. Click your target reserved IP to open its management page.

    Open Reserved IP management page

  3. Click the Attach to Server drop-down and select your target Cloud Compute instance.

    View the reserved IP management page

  4. Click Attach to apply the reserved IP to your Cloud Compute instance.

    Attach a reserved IP to a Cloud Compute Instance

  1. Send a GET request to the List Instances endpoint and note the target instance's ID in your output.

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

  2. Send a GET request to the List Reserved IPs endpoint and note the target reserved IP's ID in your output.

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

  3. Send a POST request to the Attach Reserved IP endpoint to attach the reserved IP to the instance.

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

  1. List all reserved IPs in your Vultr account and note the target reserved IP's ID.

    console 
    $ vultr-cli reserved-ip list

  2. List all instances in your Vultr account and note the target instance's ID.

    console 
    $ vultr-cli instance list

  3. Attach the reserved IP to the instance.

    console 
    $ vultr-cli reserved-ip attach <reserved-ip-id> --instance-id <instance-id>