Automatic Return Routing (ARR) solves the common enterprise challenge of overlapping private IP addresses by using stateful flow tracking instead of traditional routing tables. This userspace-driven a
AI Summary
Cloudflare introduces Automatic Return Routing (ARR), a solution to prevent IP overlap conflicts in enterprise networks. ARR uses stateful tracking to remember the originating tunnel for each flow, bypassing the need for routing tables and eliminating administrative overhead. This zero-touch solution allows overlapping networks to coexist seamlessly without Network Address Translation (NAT) or complex Virtual Routing and Forwarding (VRF) configurations.