[SOLVED] No network option appears: Proxmox installed on Debian 11 in VPS

eadmin

New Member
Jun 18, 2024
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Hello guys, i have a problem with network interface in Proxmox. My company has a VPS on contabo, in this server was installed Debian 11, but for our business we will need a virtualized server that supports some PABX VMs. It turns out that we installed Proxmox via command line following the tutorial: https://docs.vultr.com/how-to-install-proxmox-virtual-environment-on-debian-11

The installation was successful. But when I create a VM, no network interface option appears . What do I need to do to fix this? The public IP that contabo provides me is the same IP as the internal network of my proxmox (seen by the ifconfig command)


system_networks.png

Nothing appears here

no_options.png



Content of /etc/network/interfaces

Bash:
# The loopback network interface
auto lo
iface lo inet loopback


# The primary network interface
auto eth0
iface eth0 inet static
    address xx.xxx.xxx.xx
    netmask 255.255.248.0
    gateway xx.xxx.xx.x
    dns-search invalid
    dns-nameservers 194.140.196.52 194.140.196.51
    up ip route replace xx.xxx.xx.x/21 via xx.xxx.xx.x dev eth0


iface eth0 inet6 static
    address 2605:a143:2194:4412:0000:0000:0000:0001
    netmask 64
    gateway fe80::1
    accept_ra 0
    autoconf 0
 
You will need to create a Linux Bridge (that should've been automatically taken care of during installation - did you remove it?) in order to use a network interface with your VMs.
 
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You will need to create a Linux Bridge (that should've been automatically taken care of during installation - did you remove it?) in order to use a network interface with your VMs.

No, i just follow the tutorial. I don't create the bridge
 
Hi,
when you are installing proxmox on Debian, you need to manually configure the bridge. Our wiki provides a few variants, but for your use case the 'default' configuration should cover what you need [0]. Btw, we provide our own guide to install PVE on top of Debian, that already hints at that [1].


[0] https://pve.proxmox.com/wiki/Network_Configuration#_default_configuration_using_a_bridge
[1] https://pve.proxmox.com/wiki/Install_Proxmox_VE_on_Debian_12_Bookworm
Thanks, now it appears!
 

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