Certain fields in Spectrum request and response bodies require an Enterprise plan. To upgrade your plan, contact your account team.

Spectrum properties requiring an Enterprise plan:

| Name                 | Type    | Description                                                                                                                                                                                                                                                                                                         | Example                                                    |
| -------------------- | ------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ---------------------------------------------------------- |
| `origin_dns`         | object  | Method and parameters used to discover the origin server address via DNS. Valid record types are `A`, `AAAA`, `SRV` and empty (both `A` and `AAA`). A request must contain either an `origin_dns` parameter or an `origin_direct` parameter. When both are specified the service returns an `HTTP 400 Bad Request`. | `origin_dns: {type: A, name: mqtt.example.com, ttl: 1200}` |
| `origin_port`        | integer | The destination port at the origin.                                                                                                                                                                                                                                                                                 | `22`                                                       |
| `proxy_protocol`     | string  | Enables Proxy Protocol to the origin. Spectrum supports `v1`, `v2`, and `simple` proxy protocols. Refer to [Proxy Protocol](https://developers.cloudflare.com/spectrum/how-to/enable-proxy-protocol/) for more details.                                                                                             | `off`                                                      |
| `ip_firewall`        | boolean | Enables IP Access rules for this application.                                                                                                                                                                                                                                                                       | `true`                                                     |
| `tls`                | string  | Type of TLS termination for the application. Options are `off` (default, also known as Passthrough), `flexible`, `full`, and `strict`. Refer to [Configuration Options](https://developers.cloudflare.com/spectrum/reference/configuration-options/) for descriptions of each.                                      | `full`                                                     |
| `argo_smart_routing` | boolean | Enables Argo Smart Routing for the application. Note that it is only available for TCP applications with traffic\_type set to `direct`.                                                                                                                                                                             | `true`                                                     |

Review the [Spectrum API documentation](https://developers.cloudflare.com/api/resources/spectrum/subresources/apps/methods/list/) for example API requests.
