Re: Setting netmask permanently

26 Mar 2022

      On 3/26/22 20:17, Geoffrey Leach wrote:
...
Would that I could. AFAIK those files are no longer used in Fedora 35.
On Sat, Mar 26, 2022 at 4:11 PM Terry Polzin <foxec208@gmail.com 
mailto:foxec208@gmail.com> wrote:
have you edited /etc/sysconfig/network-scripts/ifcfg-eno1

On Sat, Mar 26, 2022 at 6:42 PM Geoffrey Leach
<geoffleach.gl@gmail.com <mailto:geoffleach.gl@gmail.com>> wrote:

    Device vendor insists on a netmask 255.255.0.0, so
    % ifconfig eno1 169.254.10.6  netmask 255.255.0.0
    which changes netmask, but it soon reverts to the original
    value 255.255.255.255

    ifdown/ifup does not change the situation

If you don't edit the config fles, then NetworkManager is going to keep 
"fixing" the interface.
The new location is /etc/NetworkManager/system-connections/
Are you not using a graphical desktop of some sort?  The network config 
tool for your desktop would be the thing to use.  If not, then use 
"nm-connection-editor".