$ORIGIN parent.parent-ns-same-ip-2.methodsv2.xa.
$TTL 3600

@               SOA     ns1 admin. (
                        2025081200      ; serial
                        6h              ; refresh
                        1h              ; retry
                        1w              ; expire
                        1d )            ; minimum

                NS      ns1a
                NS      ns1b
                NS      ns2

ns1a            A       127.40.1.41
ns1a            AAAA    fda1:b2:c3:0:127:40:1:41
ns1b            A       127.40.1.41
ns1b            AAAA    fda1:b2:c3:0:127:40:1:41
ns2             A       127.40.1.42
ns2             AAAA    fda1:b2:c3:0:127:40:1:42

$ORIGIN child            ; Must be relative
@               NS      ns1
@               NS      ns2
ns1             A       127.40.1.51
ns1             AAAA    fda1:b2:c3:0:127:40:1:51
ns2             A       127.40.1.52
ns2             AAAA    fda1:b2:c3:0:127:40:1:52

; EOF