fun with vlans

proxwolfe

Active Member
Jun 20, 2020
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Hi,

I have a small three node PVE cluster. Each node has two NICs. One for admin access and one for connecting my VMs to the network's DMZ (PVE itself is not in the DMZ). That all works fine.

Then I gave two of the VMs an additional virtual NIC with a VLAN tag (the bridge on the host is VLAN aware). As long as both VMs sit on the same node, they can connect via the VLAN. But when I move one VM to another node, it stops working (the bridges on the other nodes are also VLAN aware and have the same name on each node; the switch on the DMZ network can handle VLANs and the respective VLAN number is tagged on all ports).

I am running out of ideas what the problem might be.

Any help appreciated.

Thanks!
 

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