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