Hi
I can confirm my vLANs at home are working.
For testing I have an existing vLAN on my OPNsense, connected to my Home-LAN as vLan99.
This provides DHCP for 192.168.29.0/24…
This was working before - with Proxmox also.
I configured an additional vLAN on my MACbooks Thunderbolt Ethernet:
As you can see, my Macbooks vLAN get’s a correct IP via DHCP (192.168.29.0/24), my normal LAN at home uses 192.168.31.0/24, also DHCP.
My Macbook allows me to “isolate” the vLAN issue to Proxmox alone.
Now to see if I can configure any form of vLAN on Proxmox that get’s a correct IP via vLAN99…
Note: My Macbook is hooked up to the unmanaged switch, same as my OPNsense. As both LAN and vLAN reach my Macbook correctly (Both have DHCP and a correct IP for that network) I can assume the Issue is NOT with my Hardware or Switches. I get the IP also on my managed switch, on any “untagged” port as is to be expected.
Removed on my Proxmox3 all vLAN configurations, and tried a configuration of a VM with the correct vLAN tag vlan99 - no connection… So it seems that somewhere inside Proxmoxes internal networking the vLAN Tag is lost.
More tests needed…
It seems even inside a Proxmox, Proxmox can’t ping anything anything, not even a VM also using the same vLAN with correct networking applied.
I also was able to test today on a clients Proxmox 6.x, there the same configuration works. ???
More research needed…
My 2 cents
Andy