Warning : enp0s31f6 directory non-existent

[hddev]

Hi,

We installed proxmox for our client, but lately we got this error message in the log file

warning : enp0s31f6: post-up cmd 'echo 1 > /proc/sys/net/ipv4/enp0s31f6/proxy_arp' failed : returned 2 (/bin/sh : 1: cannot create /proc/sys/net/ipv4/enp0s31f6/proxy_arp : directory nonexistant).

Should I create this directory enp0s31f6 manually?

Also, from time to time the server doesn't respond to ssh requests until we launch restart the whole server, this keeps happening everyday. Is this issue related to the warning? or to the apt-get update of epv-entreprise edition (that I just commented today in /etc/apt/sources.list.d/pve-enterprise.list ).

Thank you !

Best Regards,

 

[hddev]

After few hours , the server doesn't respond to ssh requests (although it responds to ping) , we get :

ssh_exchange_identification :  connection closed by remote host

When that happens, we restart the server and everything works again. We still can't find the issue.