Number 8 Martin Garvey, flanker Philip Rowe and prop Paul Doran-Jones shared the students' other tries. Former Ireland Under-21 fly half and captain Gareth Steenson kicked four penalties for 'Gannon.
Dublin University fly half Mark O'Neill, who kicked a conversion and penalty in the win, tries to halt the progress of Dungannon full-back John McGuckin.
Marc Warburton, who will line out for the Ireland Club team against Scotland on Friday night, takes a lineout ahead of Dungannon's Michael Rainey.
Dungannon number 8 Campbell Feather takes the ball on under pressure from Dublin University's Hugh Hogan.
Dungannon centre Neil Patterson gets tackled in possession by Dublin University's Joey Burns and Darren Hayes.
Dungannon replacement Ciaran O'Kane tries to fend off the challenge of scrum half Joey Burns, an Ulster Under-21 squad member, at Merrion Road.
**All photos by Dan Sheridan of Inpho Photography**