Just installed RL 10 and everything looks good except for one small issue. I specified a static IP for the NIC, and it has that but it also shows a “secondary dynamic IP address” that I didn’t want or need. It does not show up in nmtui, and I can remove it using nmcli, but as soon as I reboot it comes back. Any idea why this happened or how I can permanently remove it?
It looks like even though you’ve assigned the static IP, you’ve left the IPv4 configuration method set as “automatic” rather than “static”. I expect setting the configuration method to static should fix it. (You’ll probably also need to reload the connection / restart the interface or something similar – nmcli con up {interface} on the command line.)
I’ve encountered pretty much the same behavior configuring some IPv6 connections. And this is what fixed things there.