Add private IP to host node

MH_MUC

Well-Known Member
May 24, 2019
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Good morning everyone.
I have a fresh install of Proxmox 6.1 (ISO-INstaller)
How do I add a private IP (192.168.22.32) to the host-node to reach a backup-server?
I understand that I am not supposed to touch the interfaces-file manually. I tried adding another bridge in the GUI, but that didn't work.

Thank you for any help!

Code:
root@server20:~/tools/backup# pveversion -v
proxmox-ve: 6.1-2 (running kernel: 5.3.18-3-pve)
pve-manager: 6.1-8 (running version: 6.1-8/806edfe1)
pve-kernel-helper: 6.1-7
pve-kernel-5.3: 6.1-6
pve-kernel-5.3.18-3-pve: 5.3.18-3
pve-kernel-5.3.10-1-pve: 5.3.10-1
ceph-fuse: 12.2.11+dfsg1-2.1+b1
corosync: 3.0.3-pve1
criu: 3.11-3
glusterfs-client: 5.5-3
ifupdown: residual config
ifupdown2: 2.0.1-1+pve8
ksm-control-daemon: 1.3-1
libjs-extjs: 6.0.1-10
libknet1: 1.15-pve1
libpve-access-control: 6.0-6
libpve-apiclient-perl: 3.0-3
libpve-common-perl: 6.0-17
libpve-guest-common-perl: 3.0-5
libpve-http-server-perl: 3.0-5
libpve-storage-perl: 6.1-5
libqb0: 1.0.5-1
libspice-server1: 0.14.2-4~pve6+1
lvm2: 2.03.02-pve4
lxc-pve: 3.2.1-1
lxcfs: 4.0.1-pve1
novnc-pve: 1.1.0-1
proxmox-mini-journalreader: 1.1-1
proxmox-widget-toolkit: 2.1-3
pve-cluster: 6.1-4
pve-container: 3.0-23
pve-docs: 6.1-6
pve-edk2-firmware: 2.20200229-1
pve-firewall: 4.0-10
pve-firmware: 3.0-6
pve-ha-manager: 3.0-9
pve-i18n: 2.0-4
pve-qemu-kvm: 4.1.1-4
pve-xtermjs: 4.3.0-1
qemu-server: 6.1-7
smartmontools: 7.1-pve2
spiceterm: 3.1-1
vncterm: 1.6-1
zfsutils-linux: 0.8.3-pve1

root@server20:~/tools/backup# cat /etc/debian_version
10.3

Current interfaces:

auto lo
iface lo inet loopback

iface enp2s0 inet manual

auto vmbr0
iface vmbr0 inet static
address 91.210.xxx.7/24
gateway 91.210.xxx.1
bridge-ports enp2s0
bridge-stp off
bridge-fd 0
 
I think I got it solved. I hope I did it right, but its working for now.

auto lo
iface lo inet loopback

iface enp2s0 inet manual


auto vmbr0
iface vmbr0 inet static
address 91.xxx.xxx.7
gateway 91.xxx.xxx.1
bridge-ports enp2s0
bridge-stp off
bridge-fd 0

#Alias added for privat ip to backup node
auto vmbr0:1
iface vmbr0:1 inet static
address 192.168.22.85
netmask 255.255.255.0



#Routing of private IP through gateway
up ip route add 192.168.0.0/16 via 91.210.226.7 dev vmbr0