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It looks like I was wrong about UDP being supported by ssh. Sorry about misleading everyone. I've verified with nc that it doesn't actually forward UDP. I'm amazed that streaming media over this seems to work fine on most sites, though.

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Many applications these days can fall back to TCP because UDP is often blocked (almost never for good reasons, but that's another discussion). For real-time applications, that fallback usually comes with a loss in quality/interactivity, though.

Alternatively, you might be unknowingly using un-proxied UDP: Many AV systems only enforce IP restrictions on the signalling protocol (which is often TCP); the actual media can then take whatever path it wants.

By the way, it seems like you can forward UDP over sshuttle [1] when used with tproxy (which seems to be a Linux-only feature)!

[1] https://sshuttle.readthedocs.io/en/stable/tproxy.html

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