anchor.diff:       {group, ipv6_mt}
       ].
   
  -groups() -> 
  +start_and_stop_tests_cases() ->
       [
  -     {start_and_stop_tests, [],
  -      [
  -       simple_start_and_stop1, 
  -       simple_start_and_stop2,
  -       simple_start_and_stop3, 
  -       simple_start_and_monitor_crash1,
  -       simple_start_and_monitor_crash2, 
  -       notify_started01,
  -       notify_started02
  -      ]
  -     },
  -     {misc_tests, [], 
  -      [
  -       info,
  -       usm_priv_aes
  -      ]
  -     },
  -     {user_tests, [], 
  -      [
  -       register_user1
  -      ]
  -     },
  -     {agent_tests, [], 
  -      [
  -       register_agent_old,
  -       register_agent2, 
  -       register_agent3
  -      ]
  -     },
  -     {request_tests, [],
  -      [
  -       {group, get_tests}, 
  -       {group, get_next_tests}, 
  -       {group, set_tests}, 
  -       {group, bulk_tests}
  -      ]
  -     },
  -     {request_tests_mt, [],
  -      [
  -       {group, get_tests}, 
  -       {group, get_next_tests},
  -       {group, set_tests}, 
  -       {group, bulk_tests}
  -      ]
  -     },
  -     {get_tests, [],
  -      [
  -       simple_sync_get3, 
  -       simple_async_get3
  -      ]
  -     },
  -     {get_next_tests, [],
  -      [
  -       simple_sync_get_next3,
  -       simple_async_get_next3_cbp_def,
  -       simple_async_get_next3_cbp_temp,
  -       simple_async_get_next3_cbp_perm
  -      ]
  -     },
  -     {set_tests, [],
  -      [
  -       simple_sync_set3, 
  -       simple_async_set3_cbp_def,
  -       simple_async_set3_cbp_temp,
  -       simple_async_set3_cbp_perm
  -      ]
  -     },
  -     {bulk_tests, [],
  -      [
  -       simple_sync_get_bulk3,
  -       simple_async_get_bulk3_cbp_def,
  -       simple_async_get_bulk3_cbp_temp,
  -       simple_async_get_bulk3_cbp_perm
  -      ]
  -     },
  -     {event_tests, [],
  -      [
  -       trap1, 
  -       trap2, 
  -       inform1, 
  -       inform2, 
  -       inform3, 
  -       inform4,
  -       inform_swarm_cbp_def,
  -       inform_swarm_cbp_temp,
  -       inform_swarm_cbp_perm,
  -       report
  -      ]
  -     },
  -     {event_tests_mt, [],
  -      [
  -       trap1, 
  -       trap2, 
  -       inform1, 
  -       inform2, 
  -       inform3, 
  -       inform4,
  -       inform_swarm_cbp_def,
  -       inform_swarm_cbp_temp,
  -       inform_swarm_cbp_perm,
  -       report
  -      ]
  -     },
  -     {tickets, [], 
  -      [
  -       {group, otp8015}, 
  -       {group, otp8395}
  -      ]
  -     },
  -     {otp8015, [], 
  -      [
  -       otp8015_1
  -      ]
  -     }, 
  -     {otp8395, [], 
  -      [
  -       otp8395_1
  -      ]
  -     },
  -     {ipv6, [], ipv6_tests()},
  -     {ipv6_mt, [], ipv6_tests()}
  -
  +     simple_start_and_stop1, 
  +     simple_start_and_stop2,
  +     simple_start_and_stop3, 
  +     simple_start_and_monitor_crash1,
  +     simple_start_and_monitor_crash2, 
  +     notify_started01,
  +     notify_started02
  +    ].
  +
  +misc_tests_cases() ->
  +    [
  +     info,
  +     usm_priv_aes
  +    ].
  +
  +user_tests_cases() ->
  +    [
  +     register_user1
  +    ].
  +
  +agent_tests_cases() ->
  +    [
  +     register_agent_old,
  +     register_agent2, 
  +     register_agent3
  +    ].
  +    
  +request_tests_cases() ->
  +    [
  +     {group, get_tests}, 
  +     {group, get_next_tests}, 
  +     {group, set_tests}, 
  +     {group, bulk_tests}
  +    ].
  +
  +request_tests_mt_cases() -> request_tests_cases().
  +
  +get_tests_cases() ->
  +    [
  +     simple_sync_get3, 
  +     simple_async_get3
  +    ].
  +
  +get_next_tests_cases() ->
  +    [
  +     simple_sync_get_next3,
  +     simple_async_get_next3_cbp_def,
  +     simple_async_get_next3_cbp_temp,
  +     simple_async_get_next3_cbp_perm
  +    ].
  +
  +set_tests_cases() ->
  +    [
  +     simple_sync_set3, 
  +     simple_async_set3_cbp_def,
  +     simple_async_set3_cbp_temp,
  +     simple_async_set3_cbp_perm
  +    ].
  +
  +bulk_tests_cases() ->
  +    [
  +     simple_sync_get_bulk3,
  +     simple_async_get_bulk3_cbp_def,
  +     simple_async_get_bulk3_cbp_temp,
  +     simple_async_get_bulk3_cbp_perm
       ].
   
   ipv6_tests() ->
  
positive.code:     ?IPRINT("starting with Config: "
              "~n      ~p", [Config]),
  
      ConfDir = ?config(manager_conf_dir, Config),
      DbDir   = ?config(manager_db_dir, Config),
  
      write_manager_conf(ConfDir),
  
      Opts = [{server,     [{verbosity, trace}]},
  	    {net_if,     [{verbosity, trace}, {options, [{extra_sock_opts, ['this-should-not-work']}]}]},
  	    {note_store, [{verbosity, trace}]},
  	    {config,     [{verbosity, trace}, {dir, ConfDir}, {db_dir, DbDir}]}],
  
  
negative.code:     ?IPRINT("encode scoped pdu"),
      Message =
        { message,
          'version-3',
          { v3_hdr,
            1, % MsgID1 
            MsgMaxSize,
            snmp_misc:mk_msg_flags(PduType, 2), % MsgFlags1
            _MsgSecurityModel = 3,  % SEC_USM
            MsgSecurityParameters,
            0
  