Out of idea... and undersanding

[arnaud.forster]

Hello all,

I've a problem here I can't resolve. I already spend a few hours testing many scenarios and I'm out of ideas...
Here's my problem :

I've a DHCP server distributing IP Adresses in the range 10.163.232.20 -> 10.163.235.254 with a subnet mask 255.255.252.0 (22).

I've here 2 computers and 1 Thecus NAS. The 2 computers receive their IP from my DHCP server and the NAS has a fix IP Address : 10.163.232.13 ; netmask 255.255.252.0

I can ping and connect to the NAS (web page) from my 2 computers.

Now I've 4 servers with proxmox (version 7.4.16). Their network are configured like this :

Proxmox#1 : vmbr0 : 10.163.232.7/22 ; gateway 10.163.232.1
Proxmox#2 : vmbr0 : 10.163.232.10/16 : gateway 10.163.232.1
Proxmox#3 : vmbr0 : 10.163.232.8/22 : gateway 10.163.232.1
Proxmox#4 : vmbr0 : 10.163.232.3/22 : gateway 10.163.232.1

No firewall rules.

From the shell of all my proxmox servers, I can ping my 2 computers but not my NAS
From my 2 computers, I can ping and connect to all my proxmox servers

So, I dont understand why I can't ping my NAS from my proxmox servers, We change the IP Adress of the NAS for testing but the result is the same.
I dont know if the problem comes from the Proxmox systems or something else.

My computers receive their IP adresse through my dhcp server but IP of the proxmox servers are entered manually.

Do you have and idea of what could be the reason of that .. I'm really out of idea and I dont understand why all systems can ping each other except my nas from the proxmox systems..

Thanks to all for your help

 

[s.lendl]

Your Proxmox#2 server has the wrong netmask /16
Please change the config to 10.163.232.10/22

 

[arnaud.forster]

Thank you stfl. That was for testing ; I already change that but the problems remain for all my servers..
For the while, I really have no explication and no more idea of the source of the problem ...