t2q2t

t2q2t

t2q2t is a port forward tool that converts between TCP and QUIC. (TCP/QUIC Proxy).

You can benefit from QUIC with any application protocol using t2q2t.

usecase overview are below:

• Client: listens on 0.0.0.0:2022 with TCP, and forwards to 192.168.0.1:22(server ip) with QUIC
• Server: listen on 0.0.0.0:2022 with QUIC, and forward to 127.0.0.1:22 with TCP

# t2q2t <convert mode> <listen addr> <connect addr>

# on client side (TCP <-> QUIC)
$ ./t2q2t t2q 0.0.0.0:2022 192.168.0.1:2022

# on server side (QUIC <-> TCO)
$ ./t2q2t q2t 0.0.0.0:2022 127.0.0.1:22

You can use SSH with QUIC transport by running t2q2t on client and server.

build

$ git clone https://github.com/flano-yuki/t2q2t.git
$ cd ./t2q2t.git
$ go build ./t2q2t.go

convert mode (sub command)

• t2q: Listen by TCP, and connect to QUIC
• q2t: Listen by QUIC, and connect to TCP

Note

This is a PoC.

t2q2t uses "t2q2t" as the ALPN identifier. It is not intended to communicate with other QUIC implementations.

TODO

• Versioning
• Use QUIC stream multiplex
• Improve error handling
• Many other improvements