DUBLIN - Australia outclassed Ireland 3-0 in Limerick on Wednesday, with two Tim Cahill goals and a late Dave Carney strike deciding the host's first home international played outside Dublin in 24 years. Cahill opened the scoring on 38 minutes, finding the bottom corner from outside the box to silence the crowd at Thomond Park, the home of twice European rugby champions Munster. Cahill struck again from his weaker left foot six minutes later, pouncing on a parried shot to put Australia, who have qualified for the 2010 World Cup, in control. Giovanni Trapattoni's men, still hoping to join the Australians in South Africa next year, had the better of the second half with midfielder Keith Andrews striking a post. However full-back Carney scored a 30-metre screamer to make it 3-0, a rugby scoreline to befit the first football international played at the southern Irish home of rugby.