Fri Nov 19, 2021 10:17 pm
You can't have 192.168.100.x on WAN (assuming it's usual /24) and 192.168.100.x/28 on LAN. Well, you can, but it's not exactly cleanest config (it would work if you enable proxy ARP on WAN). Clean way is non-overlapping subnets. And one catch with that is that upstream router (gateway) must know about the subnets behind your router, i.e. to have a routes to them.