Identifying user externally

I am running Oracle 8 on Windows NT and cannot get external user identification to work. Here is what I did:   create user user1 identified externally;   grant connect to user1;

Currently OS_AUTHENT_PREFIX is set to blank and user1 account exists in Windows NT. Oracle documentation does say that no special setting is needed for external user identification. Then, how come I am getting "ORA-01004: default username feature not supported; logon denied" when I do "connect /"? Am I doing something wrong? Thank you in advance. Received on Thu Jun 11 1998 - 00:41:57 CDT