openwrt-virtual-vlan

name	openwrt-virtual-vlan
description	OpenWrt VLAN configuration in virtual environments using Proxmox bridges. Use when configuring VLANs on virtual OpenWrt deployments, managing virtualized network segmentation, or working with VM-based routers.

OpenWrt Virtual VLAN Configuration

Virtual Environment vs Physical Differences

1. On physical OpenWrt routers, VLANs use DSA or swconfig for port-based tagging. In a Proxmox VM, OpenWrt has no physical switch — only virtual NICs (eth0, eth1, etc.) backed by Proxmox bridges.

Virtual VLAN Pattern

2. VLANs in virtual environment use 802.1Q VLAN devices on bridge ports:

   eth1 (LAN bridge port)
   ├── eth1.10 (IoT VLAN)
   ├── eth1.20 (Guest VLAN)
   └── eth1.30 (Management VLAN)
   

3. Proxmox bridges pass tagged frames by default. No bridge-vlan-aware or trunk configuration is needed on Proxmox side — VLAN tagging happens entirely within OpenWrt.

Virtual vs Physical Constraints

4. NEVER use DSA or swconfig configurations for virtual OpenWrt deployments.