Impressive job! ​Currently testing the router, non ppp versión. I've found several issues so far.
I'm trying to replace and aging TPLink with OpenWRT, which receives Internet from an ancient Scientific Atlanta 2100 cablemodem, via Ethernet (so, the cablemodem acts as a router of sorts, with its own DHCP server).
When connecting the Cablemodem to the wan port, I got IP, but it seems I can't connect to anything.
When connecting my notebook to the Lamobo, I got IP, ping trough, and can do an ssh. However, I can't ping FROM the lamobo to the notebook, albeit I can provide a working DHCP server (with DNSMASQ). Nskookup from the lamobo to the notebook Works just fine.
When plugging a patchcord from the TPLink into the Lamobo, and setting a different network in the board (thus using the TPLink as a 'cablemodem' from the lamobo perspective), got a valid ip, can connecto to the net, however, my inability to ping anything connected to br0 from the lamobo remains.
Any ideas would be most welcomed, thanks!