Proxmox pouzivame tak ze management mame v separatnej VLAN. VM alebo container pripajam do bridge vo VLAN ktoru potrebujem (VLAN tag v nastaveni interface). Nikdy s tym nebol ziadny problem.
auto lo
iface lo inet loopback
iface enp3s0 inet manual
auto enp3s0.51
iface enp3s0.51 inet static
address 192.168.111.4
netmask 255.255.255.0
gateway 192.168.111.1
#Vlan51_mngmt
auto vmbr0
iface vmbr0 inet manual
bridge_ports enp3s0
bridge_stp off
bridge_fd 0
bridge_vlan_aware yes
#VM_bridge