Munster (17) 36
Rua Tipoki scores Munster's second try against Clermont Auvergne
Tries: Payne, Tipoki, Carney, Quinlan, Horan
Con: O'Gara (4)
Clermont (6) 13
Pens: Bai (2)
Munster got the vital victory they needed at Thomond Park to keep their Heineken Cup hopes alive.
Tries by Shaun Payne, Rua Tipoki, Brian Carney, Alan Quinlan and Marcus Horan secured a bonus point win.
Full-back Payne scored after just eight minutes from a Ronan O'Gara cross-kick and centre Tipoki wriggled his way through just before the interval.
Carney touched down early in the second half with Quinlan and Horan putting a gloss on the scoreline late on.
Munster, who had picked up a bonus point from their opening 24-23 defeat by Wasps, climb above Clermont to take second spot in Pool Five.
The Irish side made the breakthrough shortly after Clermont's Vilimoni Delasau was sin-binned for not rolling away from a tackle.
Clermont expected O'Gara to kick for goal but he opted instead for a quick tap and booted out to the right for the unchallenged Payne to mark his 100th Munster cap with a try.
O'Gara converted before his opposite number, Fiji's Seremaia Bai, opened Clermont's account with a 12th-minute penalty.
O'Gara and Bai then swapped penalties to leave Munster 10-3 ahead.
Tipoki got the second try when he skipped past Emmanuel Etien and evaded a tackle from Fabien Alexandre to score near the left corner.
O'Gara converted for a 17-6 half-time lead and Munster scored again when Payne's pass over the top sent Carney over 11 minutes into the second half.
Clermont rallied and got a 65th-minute touchdown through Marius Joubert. The South African charged down Tipoki's attempted clearance kick and did well to make the line for a debut try.
However, Munster finished strongly and Quinlan crossed for the bonus-point score and then five minutes from time Horan dived over in the right corner.
Munster: Payne, Carney, Tipoki, Mafi, Dowling, O'Gara, Stringer, Horan, Flannery, Hayes, O'Callaghan, O'Driscoll, Quinlan, Wallace, Leamy.
Replacements: Sheahan, Buckley, Foley, Paringatai, G. Hurley, P. Warwick, Lewis.
Clermont Auvergne: Malzieu, Esterhuizen, Joubert, Chanal, Delasau, Bai, Pic, Shvelidze, Smit, Zirakashvili, Samson, Vigouroux, Alexandre, Etien, Broomhall.
Replacements: Lozupone, Domingo, Privat, Audebert, King, Garcia, Vonowale-Nalaga.
Referee: Nigel Owens (WRFU)