scp w/ BindAddress
Solution 1:
–o is not -o. I can see the difference when I write one under the other:
–o # copied from the question
-o # proper option with the regular ASCII dash
The font your browser is using may or may not let you see it easily. Anyway, – you used is not equivalent to - you should have used.
$ printf %s '–o' | xxd # from the question
00000000: e280 936f ...o
$ printf %s '-o' | xxd # the right one
00000000: 2d6f -o
$
The character you used is Unicode Character 'EN DASH' (U+2013).