ptr-103-194-1-16.0101.net.au IXFR zone transfer

Changes since SOA version

IXFR is a zone transfer request that returns changes since a specific SOA version. Enter the SOA version to request changes since then.

Not an apex domain The domain ptr-103-194-1-16.0101.net.au is not the root of its zone.
Instead, try zone transfer on 0101.net.au .