I had a hard time getting the “Glasfasermodem 2” running for German Telekom with a Rutx50. So I just want to make it easyier for you to get it running with a Teltonika Router.
- configure wan interface PPPoE
- set up interface to use tagged VLAN 7 where the modem is attached to
- go back wlan/advanced and set VLAN 7 and VLAN priority 0
- tell wan interface to use the ethernetport with the tagged interface
done!