Guests on `phobos` can't reach `lan` VLAN

[morey-tech]

A VM on Proxmox host phobos can't reach (ping) the gateway on the lan (1) VLAN. The VM NIC is tagged to 1, the host bridge is VLAN aware, and the switch port allows VLAN 1.

[morey-tech]

VLAN 1 is special because it represents the native (untagged) traffic. When I set the NIC to VLAN 1 in Proxmox, it tells the VM not to tag the traffic.

Two options:

• Move away from VLAN 1 for the lan network. Move to 100 and 192.168.100.0/24. Make lan untagged special unused.
• Make port to phobos LAN as the native and then create vmbr0 on a Linux vlan.

[morey-tech]

• Updated the eno1 switch port to use lan (plus tagged) network profile which puts VLAN 1 as the native untagged.

• Update network interfaces on proxmox

  iface eno1 inet manual
  iface eno2 inet manual
  
  auto eno1vlan3
  iface eno1vlan3 inet manual
  
  auto eno2vlan3
  iface eno2vlan3 inet manual
  
   auto vmbr0
   iface vmbr0 inet static
      address 192.168.3.10/24
      gateway 192.168.3.1
      bridge-stp off
      bridge-fd 0
      bridge-vlan-aware yes
      bridge-vids 2-4094
   #lab vlan
  
   auto vmbr1
   iface vmbr1 inet manual
      bridge-ports eno1 eno2
      bridge-stp off
      bridge-fd 0
      bridge-vlan-aware yes
      bridge-vids 2-4094
  #native vlan
  
   iface eno1vlan3 manual
      vlan-id 3
      vlan-raw-device eno1
  
   iface eno2vlan3 manual
      vlan-id 3
      vlan-raw-device eno2

• Set VMs that need vlan 1 to vmbr1