Idk if any of you remember
A while ago i tried to make a router from a raspberry pie and i had trouble with connecting the pie to an internet cable wich requires user and pass from the provider

Done it like 5 minutes ago using pppoe and rc-pppoe
Took me a couple weeks to figure it out
Tho i need type a command
"sudo route add default dev ppp0"
And bam it works

Damn happy cuz u know , i got no electricity... still ... and this is just great to run on a power bank

Cheers ya'll!