IPv6 breakage in NetworkManager

[Wolfgang S. Rupprecht]

Dan Irwin <rummymobile at gmail.com> writes:
> Seeing significant issues with IPv6. After some time, IPv6 completely
> seems to stop working. IPv4 is unaffected.

I'm seeing an IPv6 breakage in NetworkManager/dhclient6 too.  At first
it looked like an Selinux problem (there was an avc), but fixing that
didn't stop the problem with NM not getting a working IPv6 address via
dhclient6.  BZ#1055226 https://bugzilla.redhat.com/show_bug.cgi?id=1055226

> Re-connecting to wifi seems to restore IPv6 connectivity.

Mine is via an ethernet connection to my cable modem which connects to
Comcast.  I can do a "systemctl restart NetworkManager" in order to get
an ipv6 address.

-wolfgang