[PVE-User] Migration / Backup Question

[Dimitri Alexandris]

This is probably because vmbr0 is binded to eth0.

Proxmox builds the cluster on vmbr0, i don't know why.

Edit manually your /etc/network/interfaces and appoint vmbr0 to eth3
which is what you want if i got it right. Then reboot (or restart
network).

Then destroy and build your cluster again, and you will have it on eth3.

Here is a sample of config doing this:

-------------------------
auto lo
iface lo inet loopback

auto vmbr0
iface vmbr0 inet static
	address 10.0.2.10
	netmask 255.255.255.0
	network 10.0.2.0
	broadcast 10.0.2.255
	bridge_ports eth3
	bridge_stp off
	bridge_fd 0

auto vmbr1
iface vmbr1 inet static
	address  172.16.10.10      *****
	netmask 255.255.255.0
	network  172.16.10.0
	broadcast  172.16.10.255
	gateway 172.16.10.1           *** GW ***
	bridge_ports eth0
	bridge_stp off
	bridge_fd 0

auto vmbr2
iface vmbr2 inet static
	address 10.0.0.1     *************
	netmask 255.255.255.0
	network 10.0.0.0
	broadcast 10.0.0.255
	bridge_ports eth2
	bridge_stp off
	bridge_fd 0
--------------------------

Put your real values to ***** (i assume your default gateway is the
WAN router 172.16.10.1).

Keep a backup of the config file just in case...