Re: Remove route '169.254.0.0/16 dev ovs-system'

From	Reco <recoverym4n@enotuniq.net>
Newsgroups	linux.debian.user
Subject	Re: Remove route '169.254.0.0/16 dev ovs-system'
Date	2023-02-26 15:50 +0100
Message-ID	<G3qvD-8DML-1@gated-at.bofh.it> (permalink)
References	(5 earlier) <G2O6Z-8fuC-3@gated-at.bofh.it> <G2SNj-8iip-1@gated-at.bofh.it> <G3neq-8BOF-7@gated-at.bofh.it> <G3p6x-8D1c-3@gated-at.bofh.it> <G3q2B-8DCi-7@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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	Hi.

On Sun, Feb 26, 2023 at 03:14:22PM +0100, Geert Stappers wrote:
> Hi.
> 
> On Sun, Feb 26, 2023 at 04:01:06PM +0300, Reco wrote:
> > On Sun, Feb 26, 2023 at 12:18:52PM +0100, Geert Stappers wrote:
> > > Feb 24 22:24:15 trancilo dhcpcd[1175]: ovs-system: carrier acquired
> > > Feb 24 22:24:15 trancilo dhcpcd[1175]: ovs-system: IAID cb:93:09:25
> > > Feb 24 22:24:15 trancilo dhcpcd[1175]: ovs-system: adding address fe80::56b2:83e1:5ceb:9d50
> > >     ...
> > > Feb 24 22:24:16 trancilo dhcpcd[1175]: ovs-system: soliciting a DHCP lease
> > >     ...
> > > Feb 24 22:24:21 trancilo dhcpcd[1175]: ovs-system: probing for an IPv4LL address
> > > Feb 24 22:24:26 trancilo dhcpcd[1175]: ovs-system: using IPv4LL address 169.254.201.7
> > > Feb 24 22:24:26 trancilo dhcpcd[1175]: ovs-system: adding route to 169.254.0.0/16
> > 
> > Let's try a straightforward approach for starters:
> > 
> >   echo denyinterfaces ovs-system >> /etc/dhcpcd.conf
> 
> 
> Yes, now no more route 169.254.0.0/16 for device ovs-system.
> 
> And for the record:
> * Package avahi-autoipd left removed
> * Service avahi-daemon left disabled
> * Socket avahi-daemon left disabled

These have nothing to do with your problem.
dhcpcd is the source of your problem, in a way.

dhcpcd can run as a systemwide daemon, which tries to obtain DHCP lease
on any network interface barring "lo".
In stock configuration, dhcpcd will add IPv4LL (169.254/16) IP on a
interface if it fails to obtain a lease after 60 second timeout (IIRC).
And obviously you have no DHCP server on "ovs-system" :)
Debian's packaging of dhcpcd should prevent the daemon to obtain DHCP
lease on any interface that's listed in /etc/network/interfaces, but:

1) OVS bridge should not be listed there, it's dynamic by nature.
2) You're using Network Manager, so it's totally possible that you have
an empty /etc/network/interfaces, or no such file at all.

Long story short, consider running "systemctl mask dhcpcd" unless you
need dhcpcd to work in a way described above.

Another possible workaround is to add "noipv4ll" to dhcpcd.conf, but
this could break something else in your setup.

Reco

Thread

Remove route  '169.254.0.0/16 dev ovs-system' Geert Stappers <stappers@stappers.nl> - 2023-02-19 17:30 +0100
  Re: Remove route  '169.254.0.0/16 dev ovs-system' Christoph Brinkhaus <c.brinkhaus@t-online.de> - 2023-02-19 17:40 +0100
    Re: Remove route  '169.254.0.0/16 dev ovs-system' Stefan Monnier <monnier@iro.umontreal.ca> - 2023-02-19 18:30 +0100
      Re: Remove route  '169.254.0.0/16 dev ovs-system' Geert Stappers <stappers@stappers.nl> - 2023-02-19 20:00 +0100
        Re: Remove route  '169.254.0.0/16 dev ovs-system' Christoph Brinkhaus <c.brinkhaus@t-online.de> - 2023-02-19 20:20 +0100
        Re: Remove route '169.254.0.0/16 dev ovs-system' Max Nikulin <manikulin@gmail.com> - 2023-02-20 05:40 +0100
    Re: Remove route '169.254.0.0/16 dev ovs-system' Max Nikulin <manikulin@gmail.com> - 2023-02-20 04:00 +0100
      Re: Remove route '169.254.0.0/16 dev ovs-system' David Wright <deblis@lionunicorn.co.uk> - 2023-02-20 05:20 +0100
      Re: Remove route '169.254.0.0/16 dev ovs-system' Christoph Brinkhaus <c.brinkhaus@t-online.de> - 2023-02-20 15:50 +0100
        Re: Remove route '169.254.0.0/16 dev ovs-system' Max Nikulin <manikulin@gmail.com> - 2023-02-21 17:10 +0100
          Re: Remove route '169.254.0.0/16 dev ovs-system' Christoph Brinkhaus <c.brinkhaus@t-online.de> - 2023-02-21 18:50 +0100
            Re: Remove route '169.254.0.0/16 dev ovs-system' Jeffrey Walton <noloader@gmail.com> - 2023-02-21 19:10 +0100
              Re: Remove route '169.254.0.0/16 dev ovs-system' Christoph Brinkhaus <c.brinkhaus@t-online.de> - 2023-02-21 19:30 +0100
                Re: Remove route '169.254.0.0/16 dev ovs-system' Jeffrey Walton <noloader@gmail.com> - 2023-02-21 19:50 +0100
                Re: Remove route '169.254.0.0/16 dev ovs-system' <tomas@tuxteam.de> - 2023-02-21 20:10 +0100
                Re: Remove route '169.254.0.0/16 dev ovs-system' David Wright <deblis@lionunicorn.co.uk> - 2023-02-22 19:50 +0100
                Re: Remove route '169.254.0.0/16 dev ovs-system' Jeffrey Walton <noloader@gmail.com> - 2023-02-22 20:10 +0100
                Re: Remove route '169.254.0.0/16 dev ovs-system' Greg Wooledge <greg@wooledge.org> - 2023-02-22 20:50 +0100
                Re: Remove route '169.254.0.0/16 dev ovs-system' Darac Marjal <mailinglist@darac.org.uk> - 2023-02-22 21:10 +0100
                Re: Remove route '169.254.0.0/16 dev ovs-system' Max Nikulin <manikulin@gmail.com> - 2023-02-22 16:30 +0100
                Re: Remove route '169.254.0.0/16 dev ovs-system' Christoph Brinkhaus <c.brinkhaus@t-online.de> - 2023-02-22 17:50 +0100
                Re: Remove route '169.254.0.0/16 dev ovs-system' David Wright <deblis@lionunicorn.co.uk> - 2023-02-22 19:50 +0100
                Re: Remove route '169.254.0.0/16 dev ovs-system' Max Nikulin <manikulin@gmail.com> - 2023-02-24 16:20 +0100
                Re: Remove route '169.254.0.0/16 dev ovs-system' Christoph Brinkhaus <c.brinkhaus@t-online.de> - 2023-02-24 19:50 +0100
                Re: Remove route '169.254.0.0/16 dev ovs-system' David Wright <deblis@lionunicorn.co.uk> - 2023-02-24 20:30 +0100
                Re: Remove route '169.254.0.0/16 dev ovs-system' Geert Stappers <stappers@stappers.nl> - 2023-02-24 22:50 +0100
                Re: Remove route '169.254.0.0/16 dev ovs-system' Max Nikulin <manikulin@gmail.com> - 2023-02-25 03:50 +0100
                Re: Remove route '169.254.0.0/16 dev ovs-system' Geert Stappers <stappers@stappers.nl> - 2023-02-26 12:20 +0100
                Re: Remove route '169.254.0.0/16 dev ovs-system' Reco <recoverym4n@enotuniq.net> - 2023-02-26 14:20 +0100
                Re: Remove route '169.254.0.0/16 dev ovs-system' Geert Stappers <stappers@stappers.nl> - 2023-02-26 15:20 +0100
                Re: Remove route '169.254.0.0/16 dev ovs-system' Reco <recoverym4n@enotuniq.net> - 2023-02-26 15:50 +0100
                Re: Remove route '169.254.0.0/16 dev ovs-system' Geert Stappers <stappers@stappers.nl> - 2023-02-27 23:00 +0100
                Re: Remove route '169.254.0.0/16 dev ovs-system' Reco <recoverym4n@enotuniq.net> - 2023-02-28 07:10 +0100
                Re: Remove route '169.254.0.0/16 dev ovs-system' Max Nikulin <manikulin@gmail.com> - 2023-02-26 16:20 +0100
                Re: Remove route '169.254.0.0/16 dev ovs-system' David Wright <deblis@lionunicorn.co.uk> - 2023-02-26 18:10 +0100
                Re: Remove route '169.254.0.0/16 dev ovs-system' David Wright <deblis@lionunicorn.co.uk> - 2023-02-25 04:00 +0100
                Re: Remove route '169.254.0.0/16 dev ovs-system' Jeffrey Walton <noloader@gmail.com> - 2023-02-25 04:40 +0100
                Re: Remove route '169.254.0.0/16 dev ovs-system' Christoph Brinkhaus <c.brinkhaus@t-online.de> - 2023-02-25 13:50 +0100
                unbound and fetchmail (was: Re: Remove route '169.254.0.0/16 dev  ovs-system') Max Nikulin <manikulin@gmail.com> - 2023-02-26 16:40 +0100
                Re: unbound and fetchmail (was: Re: Remove route '169.254.0.0/16 dev  ovs-system') Christoph Brinkhaus <c.brinkhaus@t-online.de> - 2023-02-26 17:30 +0100
                Re: unbound and fetchmail (was: Re: Remove route '169.254.0.0/16 dev  ovs-system') Christoph Brinkhaus <c.brinkhaus@t-online.de> - 2023-02-26 19:10 +0100
                Re: unbound and fetchmail (was: Re: Remove route '169.254.0.0/16 dev  ovs-system') David Wright <deblis@lionunicorn.co.uk> - 2023-02-26 20:30 +0100
                Re: unbound and fetchmail (was: Re: Remove route '169.254.0.0/16 dev  ovs-system') Christoph Brinkhaus <c.brinkhaus@t-online.de> - 2023-02-28 11:30 +0100
                Re: unbound and fetchmail (was: Re: Remove route '169.254.0.0/16 dev  ovs-system') Max Nikulin <manikulin@gmail.com> - 2023-03-02 15:30 +0100
                Re: unbound and fetchmail (was: Re: Remove route '169.254.0.0/16 dev  ovs-system') Christoph Brinkhaus <c.brinkhaus@t-online.de> - 2023-03-02 16:30 +0100
                Re: unbound and fetchmail (was: Re: Remove route '169.254.0.0/16 dev  ovs-system') Max Nikulin <manikulin@gmail.com> - 2023-03-03 16:20 +0100
                Re: unbound and fetchmail (was: Re: Remove route '169.254.0.0/16 dev  ovs-system') Christoph Brinkhaus <c.brinkhaus@t-online.de> - 2023-03-03 16:30 +0100
            Re: Remove route '169.254.0.0/16 dev ovs-system' Reco <recoverym4n@enotuniq.net> - 2023-02-21 19:30 +0100
  Re: Remove route '169.254.0.0/16 dev ovs-system' Jeffrey Walton <noloader@gmail.com> - 2023-02-20 07:00 +0100
    Re: Remove route '169.254.0.0/16 dev ovs-system' <tomas@tuxteam.de> - 2023-02-20 08:30 +0100
      Re: Remove route '169.254.0.0/16 dev ovs-system' Jeffrey Walton <noloader@gmail.com> - 2023-02-20 08:50 +0100
        Re: Remove route '169.254.0.0/16 dev ovs-system' tomas@tuxteam.de - 2023-02-20 10:10 +0100
          Re: Remove route '169.254.0.0/16 dev ovs-system' rhkramer@gmail.com - 2023-02-20 15:30 +0100
            Re: Remove route '169.254.0.0/16 dev ovs-system' Jeffrey Walton <noloader@gmail.com> - 2023-02-20 16:10 +0100
  Re: Remove route  '169.254.0.0/16 dev ovs-system' The Wanderer <wanderer@fastmail.fm> - 2023-02-20 16:20 +0100

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