Merge pull request #88181 from shiftstack/cherry-pick-nm-4.16

Add note on NM behavior with additional networks

Author: maxwelldb

modules/install-osp-deploy-dualstack.adoc

@@ -166,3 +166,9 @@ ipv6.addr-gen-mode=0
 ----
 +
 .. Reboot the installation host.
+
+[NOTE]
+====
+The `ip=dhcp,dhcp6` kernel argument, which is set on all of the nodes, results in a single Network Manager connection profile that is activated on multiple interfaces simultaneously.
+Because of this behavior, any additional network has the same connection enforced with an identical UUID. If you need an interface-specific configuration, create a new connection profile for that interface so that the default connection is no longer enforced on it.
+====