Munster will take on Leicester Tigers in a Pool 4 clash of past and present champions at Welford Road on Sunday, 22 October (kick-off 15.00).
They travel to the home of the 2001 and 2002 champions for their first tournament match as holders of European club rugby's most coveted trophy, with Leicester Tigers making the return trip to the Thomond Park fortress in Round 6.
Leinster are at home to Gloucester while Ulster will entertain former champions Toulouse in round one.
The fixtures, dates and kick-off times and host TV broadcasters for the first four Rounds of the 12th Heineken Cup tournament, released by ERC, see English champions Sale Sharks also on the road in Round 1 taking on the Ospreys at the Liberty Stadium in Pool 3 on the opening night.
French champions Biarritz Olympique will have home advantage against 2000 Heineken Cup winners Northampton Saints when the opening shots are fired in Pool 6, with top Scottish team Edinburgh Gunners travelling to the south of France to meet Agen, who return to the tournament after a two year absence, in Pool 2.
Welsh No 1 seeds Cardiff Blues will also travel to France to tackle Bourgoin in Pool 4. Italian standard bearers Benetton Treviso are home to French opposition in Pool 5.
Another interesting clash will see London Irish at home to Ulster on December 9th.
Details of the additional TV coverage of Rounds 1 to 4 by ERC's broadcast partners, France Televisions, Groupe Canal +, Sky Sports, RTE TV and S4C, including all live, delayed and highlights broadcasts, will be announced shortly.
HEINEKEN CUP POOLS 2006 / 2007
Pool 1: Benetton Treviso, Perpignan, London Wasps, Castres Olympique.
Saturday 21 October
Sunday 22 October
Sunday 29 October
Saturday 9 December
Sunday 10 December
Saturday 16 December
ROUND 6 19 / 20 / 21 January
HEINEKEN CUP FINAL