Last week, Oskar Stenberg asked on Unix & Linux if it were possible to configure connectivity between two networks, both using the same address range, without involving network namespaces. That is, given this high level view of the network… …can we set things up so that hosts on the “inner” network can communicate with hosts on the “outer” network using the range 192.168.3.0/24, and similarly for communication in the other direction?