New OpenWrt device does not work behind RFC1483 VDSL bridge?

  • Moving the MAC address statement to the WAN/WAN6 config does not do anything
  • Switching firewall to LAN does not do anything
  • Setting WAN to static internal IP and adding a new interface "VDSL" with DHCP: Draytek reachable, VDSL interface gets the public IP, but again no connectivity
  • The ARP entry for the upstream gateway (.129) does not get populated (status INCOMPLETE). This probably correlates with the ARP request happening every second. Inserting the entry by hand does not work.
  • Adding a physical switch between R2S and Draytek does not do anything (to rule out the autoswitching/crossover).

Also of note: I tried the August 2 snapshot this morning, clean image, and could not get any network to work (LAN or WAN). I had to hook up the serial console; 'ip addr' would show link state UP but no traffic was going out on either interface.

The fact that the interface works fine communicating with the Draytek is really weird!

I have no idea where to search next.