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 ipagstaticip-727c98cf-a5f5-8875-0ee7-ed92803f69e4.sdsl.bell.ca is not the root of its zone.
Instead, try zone transfer on sdsl.bell.ca .
Instead, try zone transfer on sdsl.bell.ca .