Use existing vlan in firewall in proxmox vm - Proxmox help https://www.virtualizationhowto.com/community/proxmox-help/use-existing-vlan-in-firewall-in-proxmox-vm/ Virtualization Howto Discussion Board en-US Sun, 16 Aug 2026 17:15:28 +0000 wpForo 60 RE: Use existing vlan in firewall in proxmox vm https://www.virtualizationhowto.com/community/proxmox-help/use-existing-vlan-in-firewall-in-proxmox-vm/#post-1039 Mon, 28 Oct 2024 00:05:51 +0000 Hey Wallace,

Thank you for the question on the forums. So if I am understanding correctly, you are just needing to connect VMs running on your Proxmox host to the rest of the network and VLANs that are running other production workloads?

It sounds like what you are experiencing isn't expected. Let me know are you uplinking your PVE host into a switch of some sort and then the firewall is also uplinked to the same switch? Is trunking involved between multiple switches?

Brandon

]]> Proxmox help Brandon Lee https://www.virtualizationhowto.com/community/proxmox-help/use-existing-vlan-in-firewall-in-proxmox-vm/#post-1039 Use existing vlan in firewall in proxmox vm https://www.virtualizationhowto.com/community/proxmox-help/use-existing-vlan-in-firewall-in-proxmox-vm/#post-1038 Sun, 27 Oct 2024 15:27:38 +0000 I need help. I've watched several videos about VLANs and they didn't work.

We have a network with PVE, firewall and management switch. All VLANs are passing through the network port of the switch that connects to the PVE, and everything works correctly.

We need to connect the VMs to existing VLANs on the firewall because these VLANs are in production. If we use ovs-bridge, a new interface will be created. What process could we execute to use existing VLANs on VMs?

Another strange thing I've noticed is that when you point the VLAN ID at the interface, it seems to lock the VLAN and other devices lose access to the network.

VM

]]> Proxmox help Wallace Pinheiro https://www.virtualizationhowto.com/community/proxmox-help/use-existing-vlan-in-firewall-in-proxmox-vm/#post-1038