Leinster will host Ulster in an all-Irish Heineken Champions Cup quarter-final, while Munster will travel to Edinburgh for a place in the last four of the competition.
The concluding round of the pool stages saw Leinster claim a bonus-point victory over Wasps, while Toulouse proved far too strong for Bath at Stade Ernest Wallon.
Leo Cullen’s side were already guaranteed a place in the quarter-finals, and the 37-19 victory, coupled with Toulouse's faiulure to secure a bonus point, ensured a home tie and they qualified as third seeds.
It sets up a meeting with Ulster, who advanced for the knockout stages for the first time in five years with a one-point win at Welford Road yesterday.
The last time the sides met in the competition was the 2012 final, a game Leinster won 42-14 at Twickenham
Fifth seeds Munster have been pitted against Edinburgh who have tasted defeat just once in a pool that contained Montpellier and Toulon.
Elsewhere top seeds and two-time champions Saracens will have home advantage against Glasgow Warriors for their third meeting of the season, while the final tie is an all-French affair, where Racing 92 will have home advantage against Toulouse.
The semi-final pairings have also been decided. The winners of Leinster/Ulster will take on Racing 92 or Toulouse, while should Munster prevail against Edinburgh, they will face either Saracens or Glasgow.
If Saracens (ranked No 1) and Edinburgh (No 4) win their quarter-finals, Sarries will have home country advantage, as they would if Munster (No 5) progress.
If Edinburgh and Glasgow Warriors (No 8) win, the semi-final will be played in Scotland. Munster would need Glasgow to beat Sarries to play a semi on Irish soil.
If Racing 92 (ranked No 2) and Leinster (No 3) are successful, Racing will play in France, which would also be the case if Ulster upset the reigning champs.
If Leinster prevail and Toulouse (No 7) turn over Racing then the province will play in Dublin. Ulster require Toulouse (No 7) to defeat Racing to gain home advantage, should they overcome Leo Cullen's men.
Heineken Champions Cup quarter-finals
Saracens v Glasgow
Edinburgh v Munster
Leinster v Ulster
Racing v Toulouse
Heineken Champions Cup semi-finals
Saracens/Glasgow v Edinburgh/Munster
Racing 92/Toulouse v Leinster/Ulster
