Ubuntu. How to wrap routing to 16k+ addresses with subnets?

Question

linux

Good day.
There is a Linux gateway. You need to wrap a large pack of addresses (with subnets) with a script to another gateway. How ?
I can’t do a simple route add, because the routing table is not rubber.
I can drive them into ipset for the convenience of checking, well, or into 2 ipsets. But then what?
Maybe BSD can do this?
Need to tune the kernel?
UPD: got into the table. on a worker about 600MB for almost 80k records.
UPD2: BGP seems to be the best option

Answer 1

It would be more convenient in this case to set up dynamic routing. BGP for example.