All of our plants with multiple VLANS/subnets export their subnets via OSPF to BGP in our WAN. Our main BGP router has all these routes. I'd like to be able to discover subnets by a query to a seed router. These should appear in a list of discovered subnets the same way that DHCP discovered subnets are listed and need to be manually added.
This should ignore subnets that already exist (with the same CIDR length) in IPAM already. There should also be a way to ignore subnets we don't want to manage like NPM discovery has.
DHCP doesn't know about many of our VLANs at plants.