IPv6 object (inet6num)
inet6num: [mandatory] [single] [primary/look-up key]
netname: [mandatory] [single] [look-up key]
descr: [mandatory] [multiple] [ ]
country: [mandatory] [multiple] [ ]
admin-c: [mandatory] [multiple] [inverse key]
tech-c: [mandatory] [multiple] [inverse key]
rev-srv: [optional] [multiple] [ ]
remarks: [optional] [multiple] [ ]
status: [mandatory] [single] [ ]
notify: [optional] [multiple] [inverse key]
mnt-by: [optional] [multiple] [inverse key]
mnt-lower: [optional] [multiple] [ ]
changed: [mandatory] [multiple] [ ]
source: [mandatory] [single] [ ]