Vigor 167 with German Provider M-net

Hardware Questions and Recommendations
1

M-net forced me to a new contract because they are terminating all ISDN contracts. This proved to create quite a bit of work because it meant upgrading from ADSL to VDSL2, which in turn meant either accepting their supported Fritz!Box or a new Modem to use with my OpenWRT router.

I opted for the latter and ordered a Vigor 167 which supports seemingly all ADSL and VDSL flavors. I could not find any posts of this forum and the M-net forum telling how to set this up. The Vigor did connect on DSL but there was no PPPoE connection.

There are two ways to set this up:

  1. Pass the traffic on VLAN 40 back and forth and let then router handle the VLAN.
  2. Have the Vigor handle the VLAN and keep the router as before, VLAN-less.

I use the first method at home (this one here is for the office) with a Deutsche Telekom 50 Mbps line and it works fine. This is with a Vigor 130. But I could not get this to work in the office. Any working /etc/config/network files are welcome.

The second method requires one to switch the "Customer" VLAN setting off and use the "Service" setting. The default has "Customer" on and at VLAN 7 and "Service" off. (Should work for Deutsche Telekom.)

I'm posting this for people who want to build the same setup I have for an M-net DSL line, and in the hope that somebody can shed some light on the setup that uses VLAN 40 between Vigor and OpenWRT.

2

Maybe Configuration Issues OpenWRT 19.07.3 and DrayTek Vigor 130 - #4 by slh ff. provides some hints (vigor 130/ t-com), while not exactly what you're working with, I would expect it to work similarly.

3

Thanks for the tip, but no dice. That's for the Vigor 130/Telekom that works fine for many years (knock on wood) at home. The Vigor 167 has quite different settings, for example no Multi-PVC/VLAN. I tried to emulate what I have on the 130, but could not get it to work.

I'm quite sure the problem lies between M-net and OpenWRT. On OpenWRT I have the problem that I have no experience with DSA. I verified that the PADI packets are sent on VLAN 40, but there was no answer and I have no clue why.