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Last active May 6, 2022 11:05
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Proxmox network config
auto lo
iface lo inet loopback
auto enp4s0
iface enp4s0 inet manual
auto vmbr0
iface vmbr0 inet static
bridge-ports enp4s0
bridge-stp off
bridge-fd 0
iface wlp3s0 inet manual
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Dragod commented Apr 23, 2022


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

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