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 _ldap._tcp.a5f3d5b2-a5e9-4528-80e4-b7b18bac1285.domains._msdcs.ficolo.net is not the root of its zone.
Instead, try zone transfer on ficolo.net .
Instead, try zone transfer on ficolo.net .