### Structure ```json { "type": "tuic", "tag": "tuic-out", "server": "127.0.0.1", "server_port": 1080, "uuid": "2DD61D93-75D8-4DA4-AC0E-6AECE7EAC365", "password": "hello", "congestion_control": "cubic", "udp_relay_mode": "native", "udp_over_stream": false, "zero_rtt_handshake": false, "heartbeat": "10s", "network": "tcp", "tls": {}, ... // Dial Fields } ``` !!! warning "" QUIC, which is required by TUIC is not included by default, see [Installation](./#installation). ### Fields #### server ==Required== The server address. #### server_port ==Required== The server port. #### uuid ==Required== TUIC user uuid #### password TUIC user password #### congestion_control QUIC congestion control algorithm One of: `cubic`, `new_reno`, `bbr` `cubic` is used by default. #### udp_relay_mode UDP packet relay mode | Mode | Description | |:-------|:-------------------------------------------------------------------------| | native | native UDP characteristics | | quic | lossless UDP relay using QUIC streams, additional overhead is introduced | `native` is used by default. Conflict with `udp_over_stream`. #### udp_over_stream This is the TUIC port of the [UDP over TCP protocol](/configuration/shared/udp-over-tcp), designed to provide a QUIC stream based UDP relay mode that TUIC does not provide. Since it is an add-on protocol, you will need to use sing-box or another program compatible with the protocol as a server. This mode has no positive effect in a proper UDP proxy scenario and should only be applied to relay streaming UDP traffic (basically QUIC streams). Conflict with `udp_relay_mode`. #### network Enabled network One of `tcp` `udp`. Both is enabled by default. #### tls ==Required== TLS configuration, see [TLS](/configuration/shared/tls/#outbound). ### Dial Fields See [Dial Fields](/configuration/shared/dial) for details.