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 a.f.3.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.3.0.1.1.0.2.1.0.1.0.0.2.6.2.ip6.arpa.eu.iphmx.com is not the root of its zone.
Instead, try zone transfer on eu.iphmx.com .
Instead, try zone transfer on eu.iphmx.com .