oracle logon trigger

Want to write oracle logon trigger, which will check record from below tables. if record not found then user session will not authorized.

Create table authorised_ips

(ip_address varchar2(20));

how to do this?

without using table logon trigger as below

CREATE OR REPLACE TRIGGER rds_logon_trigger

AFTER LOGON ON DATABASE

BEGIN

IF SYS_CONTEXT('USERENV','IP_ADDRESS') not in ('192.168.2.121','192.168.2.123','192.168.2.233') THEN

RAISE_APPLICATION_ERROR(-20003,'You are not allowed to connect to the database');

END IF;