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Description of problem:

Due to bug 1734470, after nmstatectl disabled the IPv6 autoconf, the interface still got IPv6 auto routes.


Version-Release number of selected component (if applicable):
nmstate-0.0.8-3.el8

How reproducible:
rare

Steps to Reproduce:
1. Enable DHCPv6 and autoconf on ipv6 using nmstatectl or nmcli.
2. Set ipv6['autoconf']=False via nmstatectl
3.

Actual results:
After 10+ seconds, the link still got IPv6 routes

Expected results:
No IPv6 routes from ipv6 autoconf(RA)

Additional info:

Upstream workaround is e88a7d2a70f7eb241e6ff5e6633f8dbfce3cc6d6 by disable reapply on IPv6.

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, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2019:3347