Good day to all!
Very relevant question to me - can or can not Guest work with QinQ traffic? I looked over all the Internet, have read tons of articles. The answer is only one - You can't, even in VTG mode such traffic is dropped. There is one solution with changing ethertype, but it is too complex to realize. But life is strange and full of suprises. So
ESXi
Version:
6.5.0 (Build 4887370)
With Mikrotik CHR and ... QinQ works well! I thought nonsense but it works! Created guest VTG port group, I created some SVLANs and User VLANs, all with standard ethertype and all works fine. May be something changes and nobody knows? So another test
ESXi
Version:
6.7.0 Update 1 (Build 10302608)
do all the same and ....... nothing works. Try to solve what's wrong. I see - QinQ traffic is passed inside the guest. Guest also double tags traffic. But outside of ESXi ...... inner tag is stripped by someone
So what is it? 6.5 bug? Or all should be working at the moment and this is 6.7 bug? Or this is my mistake?
Help, please!