Leinster will host Toulon while Munster have been face Toulouse in the Round of 16 draw for the 2020-21 Heineken Champions Cup.
The Irish pair had been guaranteed home ties in today's draw after winning both pool matches they had played prior to the suspension of the competition.
Both provinces were drawn to play against traditional aristocrats of French rugby, Toulouse travelling to Limerick to face Munster, while Leinster will meet Toulon in Dublin, both games fixed for the first weekend of April.
However, away quarter-final games await both Irish provinces should they progress.
Should Leinster overcome Toulon, they will be away to the winners of the Exeter Chiefs-Lyon encounter, meaning a possible quarter-final trip to Sandy Park to take on the reigning champions.
Munster, meanwhile, will be rewarded with an away quarter-final against the winners of Wasps-Clermont Auvergne.
In January, the Champions and Challenge Cups were suspended temporarily following a directive from the French government regarding the participation of the country's clubs in both competitions amid the Covid-19 pandemic.
In a revised format, the pool stages were cut short in favour of moving straight to knock-out fixtures.
In the Challenge Cup, Connacht face a trip to twice European Cup winners Leicester Tigers while Ulster are away to Harlequins. The two provinces dropped into the Challenge Cup having lost their two Champions Cup pool clashes.
Should Ulster win their last-16 game, they will face an away quarter-final to the winners of the Dragons-Northampton game. If Connacht get past Leicester Tigers, they will be rewarded with a home quarter-final against the winners of Ospreys-Newcastle Falcons.
The round of 16 matches in both competitions will take place on the weekend of 2/3/4 April, with the quarter-finals scheduled for the following weekend (9/10/11 April).
HEINEKEN CHAMPIONS CUP LAST 16 (2/3/4 April)
Munster v Toulouse
Gloucester v La Rochelle
Wasps v Clermont Auvergne
Exeter Chiefs v Lyon
Leinster v Toulon
Bordeaux Begles v Bristol Bears
Racing 92 v Edinburgh Rugby
Scarlets v Sale Sharks
HEINEKEN CHAMPIONS CUP QF DRAW (9/10/11 April)
Exeter Chiefs/Lyon v Leinster/Toulon
Wasps/Clermont Auvergne v Munster/Toulouse
Gloucester/La Rochelle v Scarlets/Sale Sharks
Bordeaux Begles/Bristol Bears v Racing 92/Edinburgh Rugby
CHALLENGE CUP LAST 16 (2/3/4 April)
Dragons v Northampton Saints
Ospreys v Newcastle Falcons
London Irish v Cardiff Blues
Harlequins v Ulster
Benetton v Agen
Zebre v Bath
Leicester Tigers v Connacht
Montpellier v Glasgow Warriors
CHALLENGE CUP QF DRAW (9/10/11 April)
Montpellier/Glasgow Warriors v Benetton/Agen
Dragons/Northampton v Harlequins/Ulster
Zebre/Bath v London Irish/Cardiff Blues
Leicester Tigers/Connacht v Ospreys/Newcastle Falcons
Follow Scotland v Ireland (kick-off 3pm, Sunday) via our live blog on RTE.ie and the RTÉ News app or listen live on RTÉ Radio 1's Sunday Sport. Highlights on Against the Head on RTÉ2 and RTÉ Player, 8pm Monday.