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 2001-b034-0001-1600-0501-0576-ffff-ff00.hinet-ip6.hinet.net is not the root of its zone.
Instead, try zone transfer on hinet-ip6.hinet.net .
Instead, try zone transfer on hinet-ip6.hinet.net .