Auto pull subnets from route table

Where is this implemented?

I am trying to add subnets from my router's routes but I fail to find how to proceed in IPAM.

I looked for some documentation on the matter and I can't find any.

Could you please tell me how/where to go on IPAM to achieve this?

Thanks

implemented in 4.2

available in beta as functional preview of this feature, get it here: Forget the spreadhseets. IPAM has automatic subnet discovery - beta 2  and please, share your feedback if it worked or not or what you want to add. thanks a lot

My workaround:

From a core router, with a full table view of ALL routes (we don't summarize customer routes in our core):

show ip route <supernet> <netmask> longer-prefixes | redirect tftp://linux-tftp-server/<supernet>.routes

On linux-tftp-server:

cat supernet.routes | grep -v subnetted | grep -E -o "[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+/[0-9]+" | sed -e "s/\// \//" | sort -t. -k 3,3n -k 4,3n | sed -e "s/ \//\//" > supernet.sorted

Edit the sorted supernet list and remove the supernets (if existing) so all you have is the subnets.

Then just copy/paste supernet.sorted into bulk subnet import, under your supernet.

This is an easy way to start using IPAM to find free allocations, even if you don't have all customer data associated with the subnets initially, you can always massage the data later.

Since NPM is pulling routing tables now, couldn't that data be used for IPAM?  Maybe like an import option based on all the routing tables?