"If I am going to do anything with Roy, I will have to call the federation (FAI) and see if I can get a chance to talk to him," said Mandaric.
"You have to go through the channels for something like that. I will probably look into that.
"Roy took the job with Martin O'Neill so it would be difficult to move him out of there. I would like to look at him. He has a superb personality and won promotion with Sunderland. I am going to look at the situation."
Former Manchester United captain Keane, 42, has not managed a team since he was sacked by Ipswich Town in 2011.