[SOLVED] PBS change ip by itself

[onlineapps]

Hi, strange situation, i installed PBS, and after few reboots, pbs change ip by itself, how it's can possible?
current ip is: 192.168.1.160

root@pbs:~# cat /etc/network/interfaces
auto lo
iface lo inet loopback

auto ens18
iface ens18 inet static
        address 192.168.1.56/24
        gateway 192.168.1.1

root@pbs:/etc/network/interfaces.d# ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host noprefixroute
       valid_lft forever preferred_lft forever
2: enp6s18: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
    link/ether bc:24:11:49:32:d1 brd ff:ff:ff:ff:ff:ff
    inet 192.168.1.160/24 brd 192.168.1.255 scope global dynamic noprefixroute enp6s18
       valid_lft 42489sec preferred_lft 42489sec
    inet6 fe80::3451:ed94:68a2:51e1/64 scope link noprefixroute
       valid_lft forever preferred_lft forever

it's first time when i encounter this, when static ip configuration was ignored
PBS version:

proxmox-backup: 3.2.0 (running kernel: 6.8.4-3-pve)
proxmox-backup-server: 3.2.3-1 (running version: 3.2.3)
proxmox-kernel-helper: 8.1.0
proxmox-kernel-6.8: 6.8.4-3
proxmox-kernel-6.8.4-3-pve-signed: 6.8.4-3
proxmox-kernel-6.8.4-2-pve-signed: 6.8.4-2
ifupdown2: 3.2.0-1+pmx8
libjs-extjs: 7.0.0-4
proxmox-backup-docs: 3.2.3-1
proxmox-backup-client: 3.2.3-1
proxmox-mail-forward: 0.2.3
proxmox-mini-journalreader: 1.4.0
proxmox-offline-mirror-helper: 0.6.6
proxmox-widget-toolkit: 4.2.3
pve-xtermjs: 5.3.0-3
smartmontools: 7.3-pve1
zfsutils-linux: 2.2.3-pve2

 

[tcabernoch]

Um ... wild guess ... did you install openvswitch-switch on PBS?

 

[onlineapps]

no, i just install PBS and in inside i install cockpit, nothing else

 

[Neobin]

auto ens18
iface ens18 inet static
address 192.168.1.56/24
gateway 192.168.1.1

2: enp6s18: <BROADCAST,MULTICAST,UP,LOWER_UP>

Adapt your: /etc/network/interfaces to the actual interface name.

 

[onlineapps]

yes, you right, network interfaces have different names, thanks.