---
description: Supported TURN protocols, RFCs, and STUN features on Cloudflare Realtime TURN.
title: TURN Feature Matrix
image: https://developers.cloudflare.com/realtime/turn/rfc-matrix/og.png?v=e47c30924d81f1a5
---

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# TURN Feature Matrix

Last updated Apr 21, 2026|Copy as Markdown| [View as Markdown](https://developers.cloudflare.com/realtime/turn/rfc-matrix/index.md)| [Agent setup](https://developers.cloudflare.com/agent-setup/)

## 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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