host163-10-0-135.cespi.unlp.edu.ar 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 host163-10-0-135.cespi.unlp.edu.ar is not the root of its zone.
Instead, try zone transfer on cespi.unlp.edu.ar .