Tomato, VLAN & WAN: this is poorly documented!
By Pierre-Alain B on Sunday, January 4 2015, 15:01 - Permalink
It is not obvious to change the VLAN for the WAN port on a router using the Tomato firmware. This might be a necessity when the PPPoE infrastructure of your internet provider requires such a setting.
This is the case in France with the Orange provider (not for DSL but for fiber access): the internet traffic should transit on the VLAN 835.
To do so with Tomato:
- choose the PPPoE connection for the WAN (do not forget username and password if needed)
- get to the Advanced settings, VLAN page and change the VID for the WAN to correspond to the required VLAN. With some routers (such as the Asus RT-N16), changing the VID does not work and you should in fact add an offset and change the VLAN number. As an example, for VLAN 835, you have to choose a VID offset of 832 and set the WAN to the VLAN 3. Then VID should automatically change to 835.
- save and reboot, the WAN connection should now work
You can see below the appropriate setting for a WAN over VLAN 835 as requested by French Orange provider.
Hope this helps!