Looking for help Trunking on WAN Port RT-AX86U 3004.388.11

[geobernd]

I am hoping for someone smarter than me to be able to give me a command sequence to put into the startup scripts to
trunk WAN traffic (tagged with VLAN 201 through IPTV settings) and LAN traffic (no VLAN tag) together onto the physical 2.5G Port so it will travel over one ethernet connection to the ONT.

Ideally LAN traffic would just be guest network traffic without intranet access but I am happy with regular LAN onto the physical 2.5G Port so it will travel over one ethernet connection (to the ONT.


More Background:
I am trying to solve a latency spike issue with my Quantum Fiber Q1000K ONT/SmartNID that happens when the ONT is running in transparent bridge mode (caused by it not being able to get a local DHCP address and internet access for it's management engine/interface).

To do so I need to have the WAN traffic (which is VLAN 201 tagged through the IPTV settings on the RT-AX86U)
and
a LAN link that allows the Q1000K to get a local DHCP address and give the management engine in it access to the internet
go through the same physical connection - i.e. the 2.5G wan port

I want to avoid

• running a second Ethernet connection (ONT is at the other end of the house and I only have one CAT6 going there)
• buying a small managed switch that trunks together the VLAN 201 tagged WAN port and one of the untagged LAN ports from my RT-AX86U to go to the Q1000K

The ONT will know what to do with untagged vs 201 tagged traffic so nothing is needed on that end.