Description of problem:
There is a new NM method for ipv6. When editing a profile with ipv6.method set to disabled you see automatic in GUI and you cannot save w/o crippling the original profile.
Version-Release number of selected component (if applicable):
Added in upstream version 1.8.24. Will be included in RHEL 8.3 with the rebase of nm-applet (bug 1814748).
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory (NetworkManager bug fix and enhancement update), and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.