R3load and the oracle listener

Dear experts, I've got a very short question:

When performing and R3load based OS/DB migration, there is a recommendation to shutdown all the interfaces,

that might write to the DB directly. We've been discussing, whether this can be done by just stopping the oracle

listener... So, the question is - does R3load need the oracle listener to be running, in order to export the DB, or

we could stop the listener before exporting ?

Thank you!