Transports

Built-in Transports

These transports are included with Mirror.

• KCP UDP transport based on kcp.c, line-by-line translation to C#

• Telepathy - Simple, message based, MMO Scale TCP networking in C#. And no magic.

• Simple Web Sockets - WebGL transport layer for Mirror that target browser clients.

• Multiplexer - Bridging transport to allow a server to handle clients on different transports concurrently, for example desktop clients using Telepathy together with WebGL clients using Websockets.

• Latency Simulation - Middleman transport to test non-ideal network conditions

• Encryption - Middleman transport to encrypt a different transport

• Edgegap Relay Transports - Transports to utilize Edgegaps Destributed Relay Service

Additional Transports

These transports are maintained by third parties outside of Mirror.

• Monke - plug and play encrypted middleman transport layer for mirror.

• Ignorance - reliable and unreliable sequenced UDP transport based on ENet.

• LiteNetLibTransport - UDP transport based on LiteNetLib.

Relay Transports

These transports are maintained by third parties and use relay infrastructure to connect clients to servers behind firewalls / NAT.

• Steam - FizzySteamworks - Transport utilizing Steam P2P network, building on Steamworks.NET.

• Epic - Epic Online Services - Relay transport utilizing Epic's free relay service.

• LRM - Light Reflective Mirror - Relay transport for WebGL clients.

Changing Transports

Changing transports is very easy and only requires a few steps:

• Go to the game object that has the Network Manager component

• Add another transport script via the Add Component button

• Drag the transport script to the "Transport" field in the Network Manager

• Remove the old transport script (optional)

If you have connection issues with a transport that requires port forwarding, make sure to port forward the correct protocol (TCP / UDP).