VLAN works on some VMs

[jelu]

Hi
I have a fresh install of Proxmox 7.1.

I have two ubuntu 20.04 server install running and one of them get ip from vlan 30, when i try to spinup the next vm i dont get any ip adress from the same vlan, if i change vlan tag to non i get an ip from the untagged network.

I also have TrueNas running on vlan 30 and no problem to geting ip.

I have one vm on vlan 20 and it wont get any ip.

Some ide of the problem?

 

[bobmc]

Depends on how you are handling dhcp on your network. You will generally need a DHCP relay or IP Helper address on your router to allow requests to be assigned to the correct vlan scope

 

[jelu]

I have DHCP for every vlan setup on my router and also have a early Proxmox setup running version 6.3 (on server 1) and if i try the different VLAN tags with my Windows 10 VM in that machine i get ip from vlan 20 and 30 but not on the new Proxmox server (server 2) running version 7.1