In the network management / IPAM module, it could be better adding WAN IP information.
For IPv4 networks, we might have a few static IP addresses, but the format for the network requires an entire network to be monitored.
I would like the ability to chose the ability to enter the network, enter the IP's that we have available and mark them reserved like normal, but I need some way of marking the other IP addresses from that network that are not available for use because they are assigned to the Internet Service Provider's other customers.
For example, on a /24 we might only have 8 addresses assigned to us. The service provider does not give us our own subnet, just specific addresses on a larger /24 that we share with their other customers.