How to customize the driver to connect to db2 server?

I am a fresh man to toad. I don’t know how toad choose the driver to connect the db2 server.

does anyone can help me?

Thanks

You do not have to select or customize any driver to connect to a DB2 database in Toad for DB2. Toad for DB2 installs its own DB2 client software and creates its own DB2COPY.
You just need to catalog the databases you want to connect to.
To catalog databases in Toad, you can use View | Connection Manager - to open the connection manager. There is a ‘Launch DB2 Client Configuration Wizard’ button that brings up a wizard that lets you catalog your databases.
(see the attached image)
toadp11.jpeg