168-228-217-46-emp.tecnet.net.br 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 168-228-217-46-emp.tecnet.net.br is not the root of its zone.
Instead, try zone transfer on tecnet.net.br .