ifup gets different IPv6 address than Network Manager

From	Nate Bargmann <n0nb@n0nb.us>
Newsgroups	linux.debian.user
Subject	ifup gets different IPv6 address than Network Manager
Date	2020-09-22 01:00 +0200
Message-ID	<ARCWR-1Wo-1@gated-at.bofh.it> (permalink)
Organization	Amateur Radio!

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This one is riddling me.

I have three Buster hosts that use Network Manager.  Two are running
Gnome and one is a Freedombox.  I have several other hosts that I just
enabled IPv6 DHCP via the /etc/network/interfaces configuration file.
All hosts generate a SLAAC address and all receive a DHCP address.  My
router is running OpenWRT 19.07.4 updated as of yesterday.

In the OpenWRT DHCP configuration I have included an IPv6 Suffix
parameter for all hosts.  However, until I enabled the hosts to receive
a DHCP address via ifup, I had never seen an IPv6 address that included
that suffix.  The ifup enabled hosts all receive an IPv6 address that
ends with this configured suffix, which is exactly what I would like the
hosts that use Network Manager to receive as well.  The suffixes I have
assigned have a relationship to the IPv4 addresses I have assigned each
host so this is a handy way for me to visually associate an IPv6 address
to a host.

Has anyone managed to get Network Manager to work in a like manner?

- Nate

-- 

"The optimist proclaims that we live in the best of all
possible worlds.  The pessimist fears this is true."

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ifup gets different IPv6 address than Network Manager Nate Bargmann <n0nb@n0nb.us> - 2020-09-22 01:00 +0200
  Re: ifup gets different IPv6 address than Network Manager Andrei POPESCU <andreimpopescu@gmail.com> - 2020-09-22 09:10 +0200

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