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 edentiti-dvmh-web-01.vm.bulletproof.net.au is not the root of its zone.
Instead, try zone transfer on bulletproof.net.au .
Instead, try zone transfer on bulletproof.net.au .