Frankfurt Airport - international connecting flight?

I am flying out of Friedrichshafen via Frankfurt from where I fly to Australia. I am planning on meeting a friend in Frankfurt but I am not sure if it is possible to step outside the airport if I have a connecting International flight. Will I be in a transit area? Are there seperate terminals for domestic and... show more I am flying out of Friedrichshafen via Frankfurt from where I fly to Australia. I am planning on meeting a friend in Frankfurt but I am not sure if it is possible to step outside the airport if I have a connecting International flight. Will I be in a transit area? Are there seperate terminals for domestic and International flight?
Thanks!
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