Out of idea... and undersanding

Nov 17, 2021
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 -> with a subnet mask (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 : ; netmask

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 : ; gateway
Proxmox#2 : vmbr0 : : gateway
Proxmox#3 : vmbr0 : : gateway
Proxmox#4 : vmbr0 : : gateway

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
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 ...


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