anchor.diff:  	[{preferred_algorithms,[{kex,[?DEFAULT_KEX]},
                                   {cipher,?DEFAULT_CIPHERS}
                                  ]},
  -	 {silently_accept_hosts, true},
  +         {silently_accept_hosts, true},
            {recv_ext_info, false},
   	 {user_dir, user_dir(Config)},
  -	 {user_interaction, false}]},
  +	 {user_interaction, false}
  +         | proplists:get_value(extra_options,Config,[])
  +        ]},
          receive_hello,
          {send, hello},
          {send, ssh_msg_kexinit},
  
positive.code: 	    ok
      end.
  	
      
  %%%================================================================
  %%%==== Internal functions ========================================
  %%%================================================================
  
negative.code:      {group,service_requests},
       {group,authentication},
       {group,packet_size_error},
       {group,field_size_error},
       {group,ext_info}
      ].
  
  groups() ->
  