All Blacks: Steve Hansen praises players for 'special' performance against Wallabies

All Blacks coach Steve Hansen has praised the All Blacks for a "special" performance as they retained the Bledisloe Cup for a 16th straight season.

New Zealand scored six tries to two as they ran away 40-12 winners in front of a sold-out Eden Park crowd.

Just like last weekend's test in Sydney, the Australians were competitive until just before halftime as the All Blacks ran away with the contest.

"It was a pretty special performance by the team," said Hansen.

"One of the hardest things to do in sports is to back up a scoreboard dominant win. Tonight we had to come back out and earn it again.

"We had to work hard. Australia played well in patches, but the boys got better and better as the night went on.

"We scored six tries, and three of those we off set-piece [the lineout] which was an area we wanted to get better at, and we got rewards for the hard work put in."

Hansen also heaped praised onto Beauden Barrett, who scored 30 of the All Blacks' 40 points. The first-five scored four tries - two in each half - and kicked five conversions in the win, a haul which is a Bledisloe Cup record.

The 27-year-old could have had another try, but it was ruled out by the TMO for a knock-on.

"Beauden is a special player. We know that. He's been world player of the year the last two years. We understand everyone getting excited about Richie Mo'unga, because we're excited about him too.

"But you can't buy experience, and you can't buy moments in the middle. Beauden has those, and we saw what happens when they all click together like they did tonight."

Mo'unga is expected to get his opportunity in an All Blacks jersey in two weeks' time when the All Black host Argentina in Nelson.

Flanker Sam Cane's the only injury concern, after coming off the field with concussion.