Ppp txqueuelen 3 (Point-to-Point Protocol) Who likes networking and routes to give me a helping hand? The idea was to use this machine as a kind of bridge, connect MacOS Big Sur in this network tun0 and route between tun0 and ppp0 by so giving Mac access to PPTP destination network.
Installed an ec2/ubuntu with a vpn client that accesses this PPTP network (ppp0) and an openvpn server (tun0) to accept connections.
I have a MacOS Big Sur that no longer accesses the PPTP MSCHAP* network by apple's definition (security issues), but I need to access this network anyway.