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 11.85-200-236.bkkb.no is not the root of its zone.
Instead, try zone transfer on 85-200-236.bkkb.no .
Instead, try zone transfer on 85-200-236.bkkb.no .