Wales will bring the curtain down on a memorable World Cup campaign when they tackle the Wallabies at Eden Park.
And although the third place play-off is a game neither team wanted to be involved in - with Wales having lost by a point to France and had captain Sam Warburton sent off in their semi-final - Bennett is determined to bow out on a high.
"It is a big test of character for us," he said.
"It was a devastating blow to miss out on the final, but we have to move on and enjoy ourselves. We cannot dwell on France.
"We are involved in a play-off, and if you cannot get up for that then you are in the wrong job.
"You have to give the World Cup credit for what it is, and to be so close to making the final was heart-breaking. We only lost by one point, but we have moved on and we are relishing taking on Australia."
Bennett has been one of Wales' success stories at the tournament, moving seamlessly into a hooking role vacated by an injured Matthew Rees, while Richard Hibbard was also hurt before coach Warren Gatland's August squad announcement.
"With Matthew and Richard missing out because of injury, I have been able to stake my claim for the hooker's jersey," Bennett added.
"Matthew would have had a pivotal role as captain, but when he was ruled out that left a gap for me.
"Everyone has worked hard, but I have been lucky enough to get the jersey."
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