ssh ver  = Sun_SSH_2.2, SSH protocols 1.5/2.0, OpenSSL 0x100000bf (Default installed versions )
These options fail on Solaris 11, 10 and 9. May be there could be an option to enable them but I didn't see it yet.

Ok, This construct -  param = 'UNSET'  seems better - I will implement it and remove the package data