dhcp-32-11-191-64.cf-res.cfu.net 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 dhcp-32-11-191-64.cf-res.cfu.net is not the root of its zone.
Instead, try zone transfer on cfu.net .