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 netacc-gpn-204-86-255.pool.yettel.hu is not the root of its zone.
Instead, try zone transfer on pool.yettel.hu .
Instead, try zone transfer on pool.yettel.hu .