Proxmox network config

interfaces

#etc/network/interfaces

auto lo
iface lo inet loopback

auto enp4s0

iface enp4s0 inet manual

auto vmbr0
iface vmbr0 inet static
    address 192.168.0.11/24
    gateway 192.168.0.1
    bridge-ports enp4s0
    bridge-stp off
    bridge-fd 0

iface wlp3s0 inet manual

NOTE

Sometimes when proxmox reboot it does change the network interface Ex: from enp4s0 to enp3s0 so the network will stop working completely.

How to fix it:

• Check that etc/network/interfaces do not contains errors by using ifup vmbr0 on the command line
• Check network interfaces with ls /sys/class/net, it should give you all the current interfaces. Update the file etc/network/interfaces with the new bridge ex: enp3s0
• Another command could be hwinfo --short --network