---
title: TURN Feature Matrix
description: Supported TURN protocols, RFCs, and STUN features on Cloudflare Realtime TURN.
image: https://developers.cloudflare.com/dev-products-preview.png
---

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# TURN Feature Matrix

## TURN client to TURN server protocols

| Protocol | Support | Relevant specification                                                                                      |
| -------- | ------- | ----------------------------------------------------------------------------------------------------------- |
| UDP      | ✅       | [RFC 5766 ↗](https://datatracker.ietf.org/doc/html/rfc5766)                                                 |
| TCP      | ✅       | [RFC 5766 ↗](https://datatracker.ietf.org/doc/html/rfc5766)                                                 |
| TLS      | ✅       | [RFC 5766 ↗](https://datatracker.ietf.org/doc/html/rfc5766)                                                 |
| DTLS     | No      | [draft-petithuguenin-tram-turn-dtls-00 ↗](http://tools.ietf.org/html/draft-petithuguenin-tram-turn-dtls-00) |

## TURN client to TURN server protocols

| Protocol                                        | Support                                                                                                                                                               | Relevant specification                                                                                                 |
| ----------------------------------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ---------------------------------------------------------------------------------------------------------------------- |
| TURN (base RFC)                                 | ✅                                                                                                                                                                     | [RFC 5766 ↗](https://datatracker.ietf.org/doc/html/rfc5766)                                                            |
| TURN REST API                                   | ✅ (See [FAQ](https://developers.cloudflare.com/realtime/turn/faq/#does-cloudflare-realtime-turn-support-the-expired-ietf-rfc-draft-draft-uberti-behave-turn-rest-00)) | [draft-uberti-behave-turn-rest-00 ↗](http://tools.ietf.org/html/draft-uberti-behave-turn-rest-00)                      |
| Origin field in TURN (Multi-tenant TURN Server) | ✅                                                                                                                                                                     | [draft-ietf-tram-stun-origin-06 ↗](https://tools.ietf.org/html/draft-ietf-tram-stun-origin-06)                         |
| ALPN support for STUN & TURN                    | ✅                                                                                                                                                                     | [RFC 7443 ↗](https://datatracker.ietf.org/doc/html/rfc7443)                                                            |
| TURN Bandwidth draft specs                      | No                                                                                                                                                                    | [draft-thomson-tram-turn-bandwidth-01 ↗](http://tools.ietf.org/html/draft-thomson-tram-turn-bandwidth-01)              |
| TURN-bis (with dual allocation) draft specs     | No                                                                                                                                                                    | [draft-ietf-tram-turnbis-04 ↗](http://tools.ietf.org/html/draft-ietf-tram-turnbis-04)                                  |
| TCP relaying TURN extension                     | No                                                                                                                                                                    | [RFC 6062 ↗](https://datatracker.ietf.org/doc/html/rfc6062)                                                            |
| IPv6 extension for TURN                         | No                                                                                                                                                                    | [RFC 6156 ↗](https://datatracker.ietf.org/doc/html/rfc6156)                                                            |
| oAuth third-party TURN/STUN authorization       | No                                                                                                                                                                    | [RFC 7635 ↗](https://datatracker.ietf.org/doc/html/rfc7635)                                                            |
| DTLS support (for TURN)                         | No                                                                                                                                                                    | [draft-petithuguenin-tram-stun-dtls-00 ↗](https://datatracker.ietf.org/doc/html/draft-petithuguenin-tram-stun-dtls-00) |
| Mobile ICE (MICE) support                       | No                                                                                                                                                                    | [draft-wing-tram-turn-mobility-02 ↗](http://tools.ietf.org/html/draft-wing-tram-turn-mobility-02)                      |

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