#applicationdesign — Public Fediverse posts on home.social

As I was writing that last post, I might actually write code to load a table with IP records and then layer data on top of that. That table will be populated when a network is created and, if the gateway is included, that IP will be reserved right away. I'm going to need that data anyways, so I might as well have a way to manage it.

For a given IP and subnet mask, I'll be able to know all the usable IPs thanks to functions from the ip_network python library I'm using. It will be easy to add/remove the IP data when the network is created, destroyed, or the gateway is changed. Oh look, I just wrote some code for that - making this change easier.

Devices in the inventory will be able to claim 0..n IP addresses and I could even have it claim a static IP (outside any DHCP range) or association with a given DHCP range.

This has an additional benefit of being able to calculate DHCP range utilization. If a DHCP range has 10 IPs and 5 devices associated with it, it's 50% used.

#rackroot #programming #applicationdesign #backend #ipam #fastapi #webdev #homelab #dhcp