Ports and protocols
Required ports and protocols for using the Relay service.
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The Multiplayer Services SDK requires the following ports and protocols for using Relay:
- For API calls, such as creating an allocation, listing available regions, or querying the QoS discovery service, connections operate over TCP using HTTP or HTTPS on ports 80 or 443.
- For standard connections to a Relay allocation, whether with or without DTLS enabled, the system uses a port range of 37000 to 37100. Most connections will use UDP, except in the case of WebSockets, which use TCP.
- The QoS service will always use UDP on port 7778.