gsec를 실행햇는데 아래와 같이 나옵니다

C:\Program Files\Firebird\Firebird_1_5\bin>gsec -user sysdba -password masterkey

GSEC> add 'moon' -pw '1234'
GSEC> di
    user name                      uid   gid     full name
--------------------------------------------------------------------------------
----------
SYSDBA                              0     0
'MOON'                              0     0
GSEC> quit

C:\Program Files\Firebird\Firebird_1_5\bin>isql
Use CONNECT or CREATE DATABASE to specify a database
SQL> create database 'c:\borad.fdb' user 'moon' password '1234';
Statement failed, SQLCODE = -902

Your user name and password are not defined. Ask your database administrator to
set up a Firebird login.

왜 그러는거죠?