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Testing Pomerium UDP Tunnels with Ethr

Since v0.29.0 Pomerium supports tunneling UDP traffic. This example demonstrates how to do this using Ethr, a network performance measurement tool.

You will need two machines: one running the Ethr client and the Pomerium CLI, and another running the Ethr server and Pomerium. Replace ethr.corp.example.com with your domain name.

Server​

  1. Install Pomerium

  2. Install Ethr

  3. Enable QUIC by setting codec_type to http3

    codec_type: http3
    QUIC

    Pomerium also supports UDP tunneling with http1 or auto (the default), but using http3 significantly improves performance.

  4. Add a UDP route on port 8888

    - routes:
        from: udp+https://ethr.corp.example.com:8888
        to: udp://127.0.0.1:8888
        allow_any_authenticated_user: true

  5. Run Pomerium

  6. Run the Ethr server

    ethr -s

Client​

  1. Install the Pomerium CLI

  2. Install Ethr

  3. Start a UDP tunnel

    pomerium-cli udp ethr.corp.example.com:8888 --listen :8888
    TLS issues

    If you don't have a valid certificate use --disable-tls-verification.

  4. Run the Ethr client

    ethr -c localhost -p udp -b 1M -l 1k -d 5s

You should see packets arrive at the Ethr server demonstrating that UDP tunneling is working.

More Resources​

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