I have updated my two routers from Barrier Breaker to Lede 17.01.4 and now I want to restore my old functionality. In the cellar I have a plain cable router (192.168.0.1) from the internet provider. This router is closed for me, I only have very little settings available in the web interface. Several other IP devices are connected via cat5 cable to this router. They have addresses in the 192.168.0.0/24 network.
In the ground floor is my main Lede wlan router (192.168.1.1) with several computers in the 192.168.1.0/24 network. On the wan interface is a cable directed to the cellar router. Default route is set to the cellar router and the internet is reachable. My problem is that I cant reach the devices in the 0 network from the computers in the 1 network anymore. It worked before the update! If I do a traceroute on 192.168.0.55, I can see that the lede router sends the packets to the cellar router and from there to another router in the internet!? I thought private addresses won't be routed in the internet? But that's a problem of the internet provider. So how can I configure the lede router that I can reach the 0 network devices from the computers in the 1 network?
In my opinion I have to add a source nat entry in the luci->network->firewall menu:
"Any traffic" "From any host in lan" "To IP range 192.168.0.0/24 in wan" "Rewrite to source IP 192.168.0.2". Where 192.168.0.2 is the static IP on the lede router wan port. But it does not work! If I do a traceroute on 192.168.0.55, the first hop is the lede router and then 192.168.0.2 says "Destination host unreachable.".
If I change the IP of my laptop from 192.168.1.123 to 192.168.0.123, then I can connected through the lede router to the devices in the cellar. But I want to have the networks separated.
Thanks a lot