$ORIGIN 1.0.0.127.in-addr.arpa.
$TTL 300
@ IN SOA ns hostmaster 1 3600 900 604800 300
@ IN NS ns
ns IN A 127.0.0.1

@ IN KX 10 target.example.
@ IN PX 10 map822.example. mapx400.example.
@ IN NSAP 0x47000580ffff0000000001e133ffffff00016200
@ IN NSAP-PTR target.example.
@ in EID \# 01 aa