OpenWrt

[wilsonyan]

@wilsonyan

It would appear that the outer port is eth0 (lan) and the inner port is eth1 (wan)

this is probably wrong, maybe whatever you plug in first initially is eth0 (lan)

[thigobr]

I was planning to use the VisionFive as a backup router. I then tried to build latest Openwrt main from source and load a configuration backup from my active router to be surprised by the LAN driver not supporting VLANs!
My network setup needs VLANs to work… Any idea if this a driver or hardware limitation?

eth0: Only single VLAN ID supported

[ganboing]

@thigobr

My network setup needs VLANs to work… Any idea if this a driver or hardware limitation?

I believe VLAN is supported, however there’s a hardware limitation on the mac where only 1 Rx VLAN filter is supported:

dwmac4_core.c - drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c - Linux...

I assume in this case, you’ll still have VLAN working, but the eth would have to operate in a sort of “promiscuous” mode and receive all VLAN tagged traffic. The kernel code then has to filter them, instead of doing it in hw.