[SOLVED] VLAN TAG for Administration not working

kprkprk

New Member
Jan 21, 2020
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Hi guys
I have a Proxmox server with OpnSense as one of the VMs.
I have a Switch that has 4 VLAN: 1-WAN, 2-Servers,3-Computers,4-Wifi
In this proxmox server, I have OpnSense with 4 virtual interfaces, one with every different VLAN, proxmox tags it
1600861469400.png
The rest of VM are this way:
1600861505697.png

With that, computers can access trougth Firewall to servers and WAN, but I can't reach the proxmox admin page. It seems that vmbr1 (Proxmox part) is sending admin page by VLAN 1, because if I connect a computer to VLAN 1, I can see it.
I have another proxmox server that uses VLAN 2 in Switch directly and I can access without problems


My /etc/network/interface is:


Code:
auto lo
iface lo inet loopback

iface enp34s0 inet manual

auto enp38s0
iface enp38s0 inet manual

auto vmbr1
iface vmbr1 inet static
        address 192.168.34.22/24
        gateway 192.168.34.1
        bridge-ports enp38s0
        bridge-stp off
        bridge-fd 0
        bridge-vlan-aware yes
        bridge-vids 2-4094
        vlan-id 2

I tried to do some combinations, like:
Code:
auto lo
iface lo inet loopback

iface enp34s0 inet manual

auto enp38s0
iface enp38s0 inet manual

iface enp38s0.2 inet manual

auto vlan2
iface vlan2 inet static
        address 192.168.34.32/24
        gateway 192.168.34.1
        bridge-ports enp38s0.2
        bridge-stp off
        bridge-fd 0

auto vmbr1
iface vmbr1 inet manual
        bridge-ports enp38s0
        bridge-stp off
        bridge-fd 0
        bridge-vlan-aware yes
        bridge-vids 2-4094
        vlan-id 2

But nothing.. If I do that,I lose communication with Firewall and servers..

enp38s0-vmbr1 is the interface that is connected to a tagged port Switch

Anyone has clue that what can I do to see administration, and make all work? I prefer to not touch the firewall configuration for avoid problems
 
what is "vlan-id 2" in your config ?

if you need an ip in vlan2 for your proxmox admin,

simply:

Code:
auto vmbr1
iface vmbr1 inet manual
        bridge-ports enp38s0
        bridge-stp off
        bridge-fd 0
        bridge-vlan-aware yes
        bridge-vids 2-4094

auto vmbr1.2
iface vmbr1.2 inet static
        address 192.168.34.32/24
        gateway 192.168.34.1
 
what is "vlan-id 2" in your config ?

if you need an ip in vlan2 for your proxmox admin,

simply:

Code:
auto vmbr1
iface vmbr1 inet manual
        bridge-ports enp38s0
        bridge-stp off
        bridge-fd 0
        bridge-vlan-aware yes
        bridge-vids 2-4094

auto vmbr1.2
iface vmbr1.2 inet static
        address 192.168.34.32/24
        gateway 192.168.34.1

Hi Spirit
Seems logic that way
I will try it when no users connected for possible outages and say if works

The "vlan-id 2" config I saw it somewhere, but I thougth it will not work

Thanks!
 

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