Hello,
i have quite big(up to 120 devices) network running on 192.168.1.0/24 network and new connection to last mile with same subnet. i was thinking a while ago to change my subnet and create smaller broadcast domains but it can be too slow to migrate all systems to different subnet. i was thinking to use VRF and pointing default route to interface (not IP) with NAT from between same subnets but i’m really not sure if this will work and if there are cases when i will not have connectivity at all.