Alex writes:
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Hi,
I have a fedora36 system with a single static IP. I'd now like to add a /29
to it. Ideally, I'd like to create a bridge and associate all IPs with that.
It used to be that I could edit the files in /etc/sysconfig/network-scripts,
but I know I can't do that any longer. Now I have to use nmcli, but I was
hoping someone could guide me through that process.
It appears I need to create a profile, then activate it? But I want all 6
usable addresses from the /29 and the one /32 address to be active at the
same time, much like we used to do with eth0 and eth0:0, eth0:1, etc.
I've done quite a bit of reading of nmcli tutorials, and none seem to discuss
how to not only add a /29 (+ipv4.addresses ?) but also have it active at the
same time as the /32 I already have.
Network interfaces don't have entire subnets assigned to them. They have
discrete IP addresses assigned to them.
What you /can/ do, though, is assign every one of the five usable IP
addresses from your /29, one by one, to the same network interface.
Just follow anything you find in Google regarding adding an additional IP
address to your existing network interface, and just repeat the same
process, individually, for each IP address.
You will note that, as part of doing that, one of the things you will
configure is each IP's netmask. That's going to be your entire /29.