It depends on the which ODBC driver you are using. You need to have the info like Server name, port that is being used and database that you want to connect to , user id and password. Hope this helps [Of course this info is at the surface level]
To try out the connection, run ilogin with default values and if it says anything about stores database, then it means you can be conected to the server.
Parthasarathy, Hassan