VLAN 0 priority tagging with RB5009

RouterOS General
1

I would like to bypass the AT&T gateway using a process like this one for pfSense: https://github.com/MonkWho/pfatt?tab=readme-ov-file

It seems like it is not possible in ROS to set the VLAN ID to zero. Well, the documentation seems to show that you can use VLAN IDs of 0-4095 under /interface/ethernet/switch, but the vlan config parameters aren’t available on my RB5009 there. The VLAN parameters under /interface/bridge all require VLAN IDs 1-4095.

Is there still no way to set VLAN ID=0 in ROS on a RB5009?

2

VLAN ID and QOS bits are parts of same 802.1Q header. VLAN ID set to 0 says that only QOS headers should be used. So if you manage to set QOS bits for egress traffic on bridge port without manipulating VLAN ID, it should be fine.
I’ve no idea on how to manipulate QOS bits on RB5009 though.

3

There is a post/tutorial by pcunite (that might need to be adapted to newish RoS7) about this specific matter:
http://forum.mikrotik.com/t/bypassing-at-t-residential-gateways-with-mikrotik/135563/1

No idea if newer versions have different provisions.

4

Ah, amazing! I knew I couldn’t have been the first person to want to try it. Now to find a time when nobody is using the internet and I can tinker with things…

Thanks!