IRT Template
irt: [mandatory] [single] [primary/look-up key]
remarks: [optional] [multiple]
address: [mandatory] [multiple]
phone: [optional] [multiple]
fax-no: [optional] [multiple]
e-mail: [mandatory] [multiple] [lookup key]
signature: [mandatory] [multiple]
encryption: [mandatory] [multiple]
admin-c: [mandatory] [multiple] [inverse key]
tech-c: [mandatory] [multiple] [inverse key]
auth: [mandatory] [multiple]
irt-nfy: [optional] [multiple] [inverse key]
notify: [optional] [multiple] [inverse key]
mnt-by: [mandatory] [multiple] [inverse key]
changed: [mandatory] [multiple]
source: [mandatory] [single]
inetnum: [mandatory] [single] [primary/look-up key]
mnt-irt: [optional] [multiple] [inverse key]