New Zealand's forwards responded to criticism of their performance in their opening Rugby Championship clash to set the foundation for a 51-20 victory over Australia at Eden Park that also ensured the retention of the Bledisloe Cup.

The All Blacks had been pilloried for their performance in a 12-12 draw in Sydney last week but responded in stunning fashion at Eden Park.

All Blacks captain Richie McCaw, who was sinbinned early in the game, scored two tries while Kieran Read, Julian Savea and Steven Luatua also crossed, with their pack awarded a penalty try as part of a record score against the Wallabies.

Flyhalf Aaron Cruden kicked five conversions and three penalties, while Wallabies fullback Israel Folau and captain Michael Hooper crossed for tries with Kurtley Beale adding two penalties and two conversions.

The victory ensured the Bledisloe Cup remained in New Zealand for the 12th successive year. The third match in Brisbane in October is now a dead rubber in terms of the battle for the symbol of trans-Tasman supremacy.

Both sides now have a week off before their next Rugby Championship clashes, with the All Blacks playing Argentina in Napier, while the Wallabies head to Perth to host South Africa on September 6.