As far as Calibre Wireless is concerned, that's a custom protocol over TCP, so there might be some routing shenanigans involved, because HTTP *never* enters the equation. (The default port is either 9090 or automatic, but it's configurable in the startup popup in Calibre).
There's also broadcast sweeping over UDP involved for discovery, but I assume we skip that if you feed an IP:port pair manually.
Last edited by NiLuJe; 10-06-2022 at 07:25 PM.
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