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That just the example in the description, not the scan results.

I think that's just the hardcoded example in the text, considering it's still there when I viewed with no scripts enabled (and I'm on a network that doesn't have anything assigned in 192.168.0.0/16).

The page is using JavaScript with the JS WebRTC interface RTCPeerConnection[0]. Maybe that can help.

[0] https://developer.mozilla.org/en-US/docs/Web/API/RTCPeerConn...