Discussion:
BUG in Debian SID
(too old to reply)
Łukasz Kalamłacki
2024-07-30 20:20:01 UTC
Permalink
Hello,


I detected and issue with Debian SID and DHCP for IPv6.


In my network I use DHCPv6 server which works fine on stable versions of
Debian or Trixie but when I add to sources.list sid source and do update
and upgrade I get and error that:

"Link local ipv6 for interface is not configured" in syslog and
systemctl is reporting failed networking service and only ipv4
addressing is available.


configuration in /etc/network/interfaces

auto enp0s3

iface enp0s3 inet dhcp

iface enp0s3 inet6 dhcp


What is interesting when the system is already running I can do:

dhclient -6 enp0s3

and I get ipv6 address correctly


The problem is reproducible on Virtualbox: just install testing Debian
and add sid to source.list and do update/upgrade in apt.


The issue is very strange because during upgrade to SID I do not see
installation of any networking packages.


What do you think?


Best regards,

Łukasz
George at Clug
2024-07-30 22:20:01 UTC
Permalink
Post by Łukasz Kalamłacki
Hello,
I detected and issue with Debian SID and DHCP for IPv6.
In my network I use DHCPv6 server which works fine on stable versions of
Debian or Trixie but when I add to sources.list sid source and do update
Please let us know what you have added and also what you have in "sources.list sid source"

Did you add something (or change?) something to /etc/apt/sources.list ?

Did you change anything else?

George.
Post by Łukasz Kalamłacki
"Link local ipv6 for interface is not configured" in syslog and
systemctl is reporting failed networking service and only ipv4
addressing is available.
configuration in /etc/network/interfaces
auto enp0s3
iface enp0s3 inet dhcp
iface enp0s3 inet6 dhcp
dhclient -6 enp0s3
and I get ipv6 address correctly
The problem is reproducible on Virtualbox: just install testing Debian
and add sid to source.list and do update/upgrade in apt.
The issue is very strange because during upgrade to SID I do not see
installation of any networking packages.
What do you think?
Best regards,
Łukasz
Łukasz Kalamłacki
2024-07-31 06:40:02 UTC
Permalink
Hi,

I added only this to sources list:

deb http://deb.debian.org/debian/ sid main contrib non-free

and nothing else

Best regards,
Łukasz
Post by George at Clug
Post by Łukasz Kalamłacki
Hello,
I detected and issue with Debian SID and DHCP for IPv6.
In my network I use DHCPv6 server which works fine on stable versions of
Debian or Trixie but when I add to sources.list sid source and do update
Please let us know what you have added and also what you have in "sources.list sid source"
Did you add something (or change?) something to /etc/apt/sources.list ?
Did you change anything else?
George.
Post by Łukasz Kalamłacki
"Link local ipv6 for interface is not configured" in syslog and
systemctl is reporting failed networking service and only ipv4
addressing is available.
configuration in /etc/network/interfaces
auto enp0s3
iface enp0s3 inet dhcp
iface enp0s3 inet6 dhcp
dhclient -6 enp0s3
and I get ipv6 address correctly
The problem is reproducible on Virtualbox: just install testing Debian
and add sid to source.list and do update/upgrade in apt.
The issue is very strange because during upgrade to SID I do not see
installation of any networking packages.
What do you think?
Best regards,
Łukasz
Andrew M.A. Cater
2024-07-31 08:00:01 UTC
Permalink
Post by Łukasz Kalamłacki
Hi,
deb http://deb.debian.org/debian/ sid main contrib non-free
and nothing else
Best regards,
Łukasz
So that was the _only_ line in your /etc/apt/sources.list at that point?

You install testing - upgrade as far as you can - then delete everything
in /etc/apt/sources.list and replace it with the line above?

If you end up with an accidental mixture of trixie and sid, it would
be very hard to work out how to disentangle it.

Andy
Post by Łukasz Kalamłacki
Post by George at Clug
Post by Łukasz Kalamłacki
In my network I use DHCPv6 server which works fine on stable versions of
Debian or Trixie but when I add to sources.list sid source and do update
Please let us know what you have added and also what you have in
"sources.list sid source"
Did you add something (or change?) something to /etc/apt/sources.list ?
Did you change anything else?
George.
Post by Łukasz Kalamłacki
"Link local ipv6 for interface is not configured" in syslog and
systemctl is reporting failed networking service and only ipv4
addressing is available.
configuration in /etc/network/interfaces
auto enp0s3
iface enp0s3 inet dhcp
iface enp0s3 inet6 dhcp
dhclient -6 enp0s3
and I get ipv6 address correctly
The problem is reproducible on Virtualbox: just install testing Debian
and add sid to source.list and do update/upgrade in apt.
The issue is very strange because during upgrade to SID I do not see
installation of any networking packages.
What do you think?
Best regards,
Łukasz
Łukasz Kalamłacki
2024-07-31 09:00:01 UTC
Permalink
Hi,

I had besides sid also trixie sources but I bet that with only sid the
result will be the same.
Could you try to reproduce on VirtualBox at your side. You do not need
dhcpv6 server. In normal behavior you should get timeout, but this bug will
cause quick end with error from the first post.

Best regards,
Łukasz
Post by Andrew M.A. Cater
Post by Łukasz Kalamłacki
Hi,
deb http://deb.debian.org/debian/ sid main contrib non-free
and nothing else
Best regards,
Łukasz
So that was the _only_ line in your /etc/apt/sources.list at that point?
You install testing - upgrade as far as you can - then delete everything
in /etc/apt/sources.list and replace it with the line above?
If you end up with an accidental mixture of trixie and sid, it would
be very hard to work out how to disentangle it.
Andy
Post by Łukasz Kalamłacki
Post by George at Clug
Post by Łukasz Kalamłacki
In my network I use DHCPv6 server which works fine on stable
versions of
Post by Łukasz Kalamłacki
Post by George at Clug
Post by Łukasz Kalamłacki
Debian or Trixie but when I add to sources.list sid source and do
update
Post by Łukasz Kalamłacki
Post by George at Clug
Please let us know what you have added and also what you have in
"sources.list sid source"
Did you add something (or change?) something to /etc/apt/sources.list ?
Did you change anything else?
George.
Post by Łukasz Kalamłacki
"Link local ipv6 for interface is not configured" in syslog and
systemctl is reporting failed networking service and only ipv4
addressing is available.
configuration in /etc/network/interfaces
auto enp0s3
iface enp0s3 inet dhcp
iface enp0s3 inet6 dhcp
dhclient -6 enp0s3
and I get ipv6 address correctly
The problem is reproducible on Virtualbox: just install testing
Debian
Post by Łukasz Kalamłacki
Post by George at Clug
Post by Łukasz Kalamłacki
and add sid to source.list and do update/upgrade in apt.
The issue is very strange because during upgrade to SID I do not see
installation of any networking packages.
What do you think?
Best regards,
Łukasz
Joe
2024-07-31 09:20:02 UTC
Permalink
On Wed, 31 Jul 2024 07:57:52 +0000
Post by Andrew M.A. Cater
Post by Łukasz Kalamłacki
Hi,
deb http://deb.debian.org/debian/ sid main contrib non-free
and nothing else
Best regards,
Łukasz
So that was the _only_ line in your /etc/apt/sources.list at that point?
You install testing - upgrade as far as you can - then delete
everything in /etc/apt/sources.list and replace it with the line
above?
If you end up with an accidental mixture of trixie and sid, it would
be very hard to work out how to disentangle it.
From the Debian Wiki:

"Best practices for Testing/Sid users

"Please, have a look at [the best practices for Testing/Unstable users]
(link), and consider implementing them.

"Best practices for Testing users

"It is a good idea to include unstable and experimental in your apt
sources so that you have access to newer packages when needed. With the
APT::Default-Release apt config setting or with apt pinning you can
have packages from testing by default but if you manually upgrade some
packages to unstable or experimental, then you will get upgrades within
that suite until those packages migrate down to unstable or testing.
The apt pinning needs priorities lower than 990 and equal to or higher
than 500 for this to work nicely. You can also pin some packages to
unstable/experimental that you always want the latest versions of.

"It is a good idea to install security updates from unstable since they
take extra time to reach testing and the security team only releases
updates to unstable."


I've seen recommendations the other way around also: that unstable
users should also add testing repositories, as packages are
occasionally temporarily withdrawn from unstable. I've followed this for
many years without trouble, and my login banner includes the
distribution name 'trixie/sid'.
--
Joe
George at Clug
2024-07-31 08:10:01 UTC
Permalink
Łukasz,


I wonder if the issue is that you are missing "non-free-firmware" which provides the non-free drivers for things like sound, network and WiFI devices?

(Hopefully you only have 'sid' sources and no sources for other versions, for example 'bookworm' or 'backports')

It could help to at least add "non-free-firmware" even if there is another issue?

https://gist.github.com/hakerdefo/124a37ca927018f8b52a72e316d160fa#file-sources-list
Debian Sid (Unstable) complete sources.list
deb https://ftp.debian.org/debian/ sid contrib main non-free non-free-firmware
# deb-src https://ftp.debian.org/debian/ sid contrib main non-free non-free-firmware

Uncomment the deb-src line, if you want to enable the source repos.

George.
Post by Łukasz Kalamłacki
Hi,
deb http://deb.debian.org/debian/ sid main contrib non-free
and nothing else
Best regards,
Łukasz
Post by George at Clug
Post by Łukasz Kalamłacki
Hello,
I detected and issue with Debian SID and DHCP for IPv6.
In my network I use DHCPv6 server which works fine on stable versions of
Debian or Trixie but when I add to sources.list sid source and do update
Please let us know what you have added and also what you have in
"sources.list sid source"
Did you add something (or change?) something to /etc/apt/sources.list ?
Did you change anything else?
George.
Post by Łukasz Kalamłacki
"Link local ipv6 for interface is not configured" in syslog and
systemctl is reporting failed networking service and only ipv4
addressing is available.
configuration in /etc/network/interfaces
auto enp0s3
iface enp0s3 inet dhcp
iface enp0s3 inet6 dhcp
dhclient -6 enp0s3
and I get ipv6 address correctly
The problem is reproducible on Virtualbox: just install testing Debian
and add sid to source.list and do update/upgrade in apt.
The issue is very strange because during upgrade to SID I do not see
installation of any networking packages.
What do you think?
Best regards,
Łukasz
Łukasz Kalamłacki
2024-07-31 08:20:01 UTC
Permalink
Hi,

Are you able to reproduce at your side? You can verify this on VirtualBox
even without DHCPv6 server. In normal circumstances you should get timeout
on dhclient but the BUG causes that Debian should end immediately without
timeout and with the error mentioned in the first post in syslog.
So are you able to reproduce at your side?

Best regards,
Łukasz
Łukasz,
I wonder if the issue is that you are missing "non-free-firmware" which
provides the non-free drivers for things like sound, network and WiFI
devices?
(Hopefully you only have 'sid' sources and no sources for other versions,
for example 'bookworm' or 'backports')
It could help to at least add "non-free-firmware" even if there is another issue?
https://gist.github.com/hakerdefo/124a37ca927018f8b52a72e316d160fa#file-sources-list
Debian Sid (Unstable) complete sources.list
deb https://ftp.debian.org/debian/ sid contrib main non-free
non-free-firmware
# deb-src https://ftp.debian.org/debian/ sid contrib main non-free non-free-firmware
Uncomment the deb-src line, if you want to enable the source repos.
George.
Post by Łukasz Kalamłacki
Hi,
deb http://deb.debian.org/debian/ sid main contrib non-free
and nothing else
Best regards,
Łukasz
Post by George at Clug
Post by Łukasz Kalamłacki
Hello,
I detected and issue with Debian SID and DHCP for IPv6.
In my network I use DHCPv6 server which works fine on stable
versions of
Post by Łukasz Kalamłacki
Post by George at Clug
Post by Łukasz Kalamłacki
Debian or Trixie but when I add to sources.list sid source and do
update
Post by Łukasz Kalamłacki
Post by George at Clug
Please let us know what you have added and also what you have in
"sources.list sid source"
Did you add something (or change?) something to /etc/apt/sources.list ?
Did you change anything else?
George.
Post by Łukasz Kalamłacki
"Link local ipv6 for interface is not configured" in syslog and
systemctl is reporting failed networking service and only ipv4
addressing is available.
configuration in /etc/network/interfaces
auto enp0s3
iface enp0s3 inet dhcp
iface enp0s3 inet6 dhcp
dhclient -6 enp0s3
and I get ipv6 address correctly
The problem is reproducible on Virtualbox: just install testing
Debian
Post by Łukasz Kalamłacki
Post by George at Clug
Post by Łukasz Kalamłacki
and add sid to source.list and do update/upgrade in apt.
The issue is very strange because during upgrade to SID I do not see
installation of any networking packages.
What do you think?
Best regards,
Łukasz
George at Clug
2024-07-31 08:30:01 UTC
Permalink
OK, I will give that a try and post back.



George.


On Wednesday, 31-07-2024 at 18:15 Łukasz Kalamłacki wrote:


Hi,


Are you able to reproduce at your side? You can verify this on
VirtualBox even without DHCPv6 server. In normal circumstances you
should get timeout on dhclient but the BUG causes that Debian should
end immediately without timeout and with the error mentioned in the
first post in syslog.
So are you able to reproduce at your side?


Best regards,
Łukasz



śr., 31 lip 2024 o 10:06 George at Clug napisał(a):



Łukasz,


I wonder if the issue is that you are missing "non-free-firmware"
which provides the non-free drivers for things like sound, network and
WiFI devices?

(Hopefully you only have 'sid' sources and no sources for other
versions, for example 'bookworm' or 'backports')

It could help to at least add "non-free-firmware" even if there is
another issue?

https://gist.github.com/hakerdefo/124a37ca927018f8b52a72e316d160fa#file-sources-list
Debian Sid (Unstable) complete sources.list
deb https://ftp.debian.org/debian/ sid contrib main non-free
non-free-firmware
# deb-src https://ftp.debian.org/debian/ sid contrib main non-free
non-free-firmware

Uncomment the deb-src line, if you want to enable the source repos.

George.
Post by Łukasz Kalamłacki
Hi,
deb http://deb.debian.org/debian/ sid main contrib non-free
and nothing else
Best regards,
Łukasz
Post by George at Clug
Post by Łukasz Kalamłacki
Hello,
I detected and issue with Debian SID and DHCP for IPv6.
In my network I use DHCPv6 server which works fine on stable
versions of
Post by Łukasz Kalamłacki
Post by George at Clug
Post by Łukasz Kalamłacki
Debian or Trixie but when I add to sources.list sid source and
do update
Post by Łukasz Kalamłacki
Post by George at Clug
Please let us know what you have added and also what you have in
"sources.list sid source"
Did you add something (or change?) something to
/etc/apt/sources.list ?
Post by Łukasz Kalamłacki
Post by George at Clug
Did you change anything else?
George.
Post by Łukasz Kalamłacki
"Link local ipv6 for interface is not configured" in syslog and
systemctl is reporting failed networking service and only ipv4
addressing is available.
configuration in /etc/network/interfaces
auto enp0s3
iface enp0s3 inet dhcp
iface enp0s3 inet6 dhcp
dhclient -6 enp0s3
and I get ipv6 address correctly
The problem is reproducible on Virtualbox: just install testing
Debian
Post by Łukasz Kalamłacki
Post by George at Clug
Post by Łukasz Kalamłacki
and add sid to source.list and do update/upgrade in apt.
The issue is very strange because during upgrade to SID I do not see
installation of any networking packages.
What do you think?
Best regards,
Łukasz
Jeffrey Walton
2024-07-30 23:10:02 UTC
Permalink
Post by Łukasz Kalamłacki
I detected and issue with Debian SID and DHCP for IPv6.
In my network I use DHCPv6 server which works fine on stable versions of
Debian or Trixie but when I add to sources.list sid source and do update
"Link local ipv6 for interface is not configured" in syslog and
systemctl is reporting failed networking service and only ipv4
addressing is available.
configuration in /etc/network/interfaces
auto enp0s3
iface enp0s3 inet dhcp
iface enp0s3 inet6 dhcp
Maybe you need another option with dhcp for IPv6, like request_prefix
or accept_ra. See <https://wiki.debian.org/IPv6PrefixDelegation>.
Post by Łukasz Kalamłacki
dhclient -6 enp0s3
and I get ipv6 address correctly
The problem is reproducible on Virtualbox: just install testing Debian
and add sid to source.list and do update/upgrade in apt.
The issue is very strange because during upgrade to SID I do not see
installation of any networking packages.
What do you think?
Jeff
Łukasz Kalamłacki
2024-07-31 06:40:01 UTC
Permalink
Hi,

Yes I tried that also with the same result.

Best regards,
Łukasz
Post by Jeffrey Walton
Post by Łukasz Kalamłacki
I detected and issue with Debian SID and DHCP for IPv6.
In my network I use DHCPv6 server which works fine on stable versions of
Debian or Trixie but when I add to sources.list sid source and do update
"Link local ipv6 for interface is not configured" in syslog and
systemctl is reporting failed networking service and only ipv4
addressing is available.
configuration in /etc/network/interfaces
auto enp0s3
iface enp0s3 inet dhcp
iface enp0s3 inet6 dhcp
Maybe you need another option with dhcp for IPv6, like request_prefix
or accept_ra. See <https://wiki.debian.org/IPv6PrefixDelegation>.
Post by Łukasz Kalamłacki
dhclient -6 enp0s3
and I get ipv6 address correctly
The problem is reproducible on Virtualbox: just install testing Debian
and add sid to source.list and do update/upgrade in apt.
The issue is very strange because during upgrade to SID I do not see
installation of any networking packages.
What do you think?
Jeff
George at Clug
2024-07-31 09:40:03 UTC
Permalink
Łukasz,

You do need to remove (comment out) all sources (e.g. bookworm/trixie)
and only leave sid.  This may solve your issue.

After creating a VM using Virt-Manager, I do get a ipv6 address, and
I do not get the message  "Link local ipv6 for interface is not
configured" when checking journalctl output. 


To check for the message I used the command:
# journalctl | grep -i ipv6

Longer explanation, is, this is what I did:

I built a headless server (e.g. no GUI) stable bookworm installation,
and then after the installation, commented out all sources, then added
sid and sources for sid.
deb https://ftp.debian.org/debian/ sid contrib main non-free
non-free-firmware
deb-src https://ftp.debian.org/debian/ sid contrib main non-free
non-free-firmware

# apt update

# apt full-upgrade -y

# systemctl reboot

(log in again)

Edit /etc/network/interfaces and after 'iface enp1s0 inet dhcp' added
iface enp1s0 inet6 dhcp

Then rebooted the VM
# systemctl reboot

(log in again)

Checked and saw there was an ipv6 ip address:
# ip -6 a

Checked for ipv6 messages but cannot find any message  "Link local
ipv6 for interface is not configured".
# journalctl | grep -i ipv6
... list of IPv6 log messages were displayed...


Let me know if I can help further?



George.
Post by Łukasz Kalamłacki
Hi,
I had besides sid also trixie sources but I bet that with only sid
the
Post by Łukasz Kalamłacki
result will be the same.
Could you try to reproduce on VirtualBox at your side. You do not
need
Post by Łukasz Kalamłacki
dhcpv6 server. In normal behavior you should get timeout, but this
bug will
Post by Łukasz Kalamłacki
cause quick end with error from the first post.
Best regards,
Łukasz
On Wed, Jul 31, 2024 at 08:33:28AM +0200, Łukasz Kalamłacki
Post by Łukasz Kalamłacki
Hi,
deb http://deb.debian.org/debian/ sid main contrib non-free
and nothing else
Best regards,
Łukasz
So that was the _only_ line in your /etc/apt/sources.list at that
point?
Post by Łukasz Kalamłacki
You install testing - upgrade as far as you can - then delete
everything
Post by Łukasz Kalamłacki
in /etc/apt/sources.list and replace it with the line above?
If you end up with an accidental mixture of trixie and sid, it
would
Post by Łukasz Kalamłacki
be very hard to work out how to disentangle it.
Andy
Post by Łukasz Kalamłacki
Post by George at Clug
Post by Łukasz Kalamłacki
In my network I use DHCPv6 server which works fine on stable
versions of
Post by Łukasz Kalamłacki
Post by George at Clug
Post by Łukasz Kalamłacki
Debian or Trixie but when I add to sources.list sid source
and do
Post by Łukasz Kalamłacki
update
Post by Łukasz Kalamłacki
Post by George at Clug
Please let us know what you have added and also what you have
in
Post by Łukasz Kalamłacki
Post by Łukasz Kalamłacki
Post by George at Clug
"sources.list sid source"
Did you add something (or change?) something to
/etc/apt/sources.list ?
Post by Łukasz Kalamłacki
Post by Łukasz Kalamłacki
Post by George at Clug
Did you change anything else?
George.
Post by Łukasz Kalamłacki
"Link local ipv6 for interface is not configured" in syslog
and
Post by Łukasz Kalamłacki
Post by Łukasz Kalamłacki
Post by George at Clug
Post by Łukasz Kalamłacki
systemctl is reporting failed networking service and only
ipv4
Post by Łukasz Kalamłacki
Post by Łukasz Kalamłacki
Post by George at Clug
Post by Łukasz Kalamłacki
addressing is available.
configuration in /etc/network/interfaces
auto enp0s3
iface enp0s3 inet dhcp
iface enp0s3 inet6 dhcp
What is interesting when the system is already running I can
dhclient -6 enp0s3
and I get ipv6 address correctly
The problem is reproducible on Virtualbox: just install
testing
Post by Łukasz Kalamłacki
Debian
Post by Łukasz Kalamłacki
Post by George at Clug
Post by Łukasz Kalamłacki
and add sid to source.list and do update/upgrade in apt.
The issue is very strange because during upgrade to SID I do
not see
Post by Łukasz Kalamłacki
Post by Łukasz Kalamłacki
Post by George at Clug
Post by Łukasz Kalamłacki
installation of any networking packages.
What do you think?
Best regards,
Łukasz
George at Clug
2024-07-31 11:00:01 UTC
Permalink
Łukasz,


I wanted to do another try, but this time stay with the initial Debian
installation, that is not alter /etc/network/interfaces file.

So this time I just built Bookworm, then upgraded to Sid.


Good news is I still cannot replicate your issue. Hopefully the issue
was because of the non sid sources. 


All the best with your fault finding, and thanks for the fun of
running up a couple of VMs. I really enjoy how VMs make testing easy.


Below is my checking after building the Bookworm VM, to upgrading to
sid, and then checking once again.


George.




# cat /etc/network/interfaces
# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).

source /etc/network/interfaces.d/*

# The loopback network interface
auto lo
iface lo inet loopback

# The primary network interface
allow-hotplug enp1s0
iface enp1s0 inet dhcp


# ip -6 a
1: lo: mtu 65536 state UNKNOWN qlen 1000
    inet6 ::1/128 scope host noprefixroute
       valid_lft forever preferred_lft forever
2: enp1s0:
mtu 1500 state UP qlen 1000
    inet6 fe80::5054:ff:fe95:9109/64 scope link
       valid_lft forever preferred_lft forever

       
# journalctl | grep -i ipv6
Jul 31 20:06:07 debsid1 kernel: Segment Routing with IPv6
Jul 31 20:06:07 debsid1 kernel: In-situ OAM (IOAM) with IPv6
Jul 31 20:06:07 debsid1 kernel: mip6: Mobile IPv6


===============================================================================
# nano /etc/apt/sources.list

deb https://ftp.debian.org/debian/ sid contrib main non-free
non-free-firmware
# deb-src https://ftp.debian.org/debian/ sid contrib main non-free
non-free-firmware

# apt update && apt full-upgrade -y
# systemctl reboot

# cat /etc/network/interfaces
# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).

source /etc/network/interfaces.d/*

# The loopback network interface
auto lo
iface lo inet loopback

# The primary network interface
allow-hotplug enp1s0
iface enp1s0 inet dhcp



# ip -6 a
1: lo: mtu 65536 state UNKNOWN qlen 1000
    inet6 ::1/128 scope host noprefixroute
       valid_lft forever preferred_lft forever
2: enp1s0:
mtu 1500 state UP qlen 1000
    inet6 fe80::5054:ff:fe95:9109/64 scope link proto kernel_ll
       valid_lft forever preferred_lft forever

       
# journalctl | grep -i ipv6
Jul 31 20:06:07 debsid1 kernel: Segment Routing with IPv6
Jul 31 20:06:07 debsid1 kernel: In-situ OAM (IOAM) with IPv6
Jul 31 20:06:07 debsid1 kernel: mip6: Mobile IPv6
Jul 31 20:41:06 debsid1 kernel: Segment Routing with IPv6
Jul 31 20:41:06 debsid1 kernel: In-situ OAM (IOAM) with IPv6
Jul 31 20:41:06 debsid1 kernel: mip6: Mobile IPv6




On Wednesday, 31-07-2024 at 18:15 Łukasz Kalamłacki wrote:


Hi,


Are you able to reproduce at your side? You can verify this on
VirtualBox even without DHCPv6 server. In normal circumstances you
should get timeout on dhclient but the BUG causes that Debian should
end immediately without timeout and with the error mentioned in the
first post in syslog.
So are you able to reproduce at your side?


Best regards,
Łukasz



śr., 31 lip 2024 o 10:06 George at Clug napisał(a):



Łukasz,


I wonder if the issue is that you are missing "non-free-firmware"
which provides the non-free drivers for things like sound, network and
WiFI devices?

(Hopefully you only have 'sid' sources and no sources for other
versions, for example 'bookworm' or 'backports')

It could help to at least add "non-free-firmware" even if there is
another issue?

https://gist.github.com/hakerdefo/124a37ca927018f8b52a72e316d160fa#file-sources-list
Debian Sid (Unstable) complete sources.list
deb https://ftp.debian.org/debian/ sid contrib main non-free
non-free-firmware
# deb-src https://ftp.debian.org/debian/ sid contrib main non-free
non-free-firmware

Uncomment the deb-src line, if you want to enable the source repos.

George.
Post by Łukasz Kalamłacki
Hi,
deb http://deb.debian.org/debian/ sid main contrib non-free
and nothing else
Best regards,
Łukasz
Post by George at Clug
Post by Łukasz Kalamłacki
Hello,
I detected and issue with Debian SID and DHCP for IPv6.
In my network I use DHCPv6 server which works fine on stable
versions of
Post by Łukasz Kalamłacki
Post by George at Clug
Post by Łukasz Kalamłacki
Debian or Trixie but when I add to sources.list sid source and
do update
Post by Łukasz Kalamłacki
Post by George at Clug
Please let us know what you have added and also what you have in
"sources.list sid source"
Did you add something (or change?) something to
/etc/apt/sources.list ?
Post by Łukasz Kalamłacki
Post by George at Clug
Did you change anything else?
George.
Post by Łukasz Kalamłacki
"Link local ipv6 for interface is not configured" in syslog and
systemctl is reporting failed networking service and only ipv4
addressing is available.
configuration in /etc/network/interfaces
auto enp0s3
iface enp0s3 inet dhcp
iface enp0s3 inet6 dhcp
dhclient -6 enp0s3
and I get ipv6 address correctly
The problem is reproducible on Virtualbox: just install testing
Debian
Post by Łukasz Kalamłacki
Post by George at Clug
Post by Łukasz Kalamłacki
and add sid to source.list and do update/upgrade in apt.
The issue is very strange because during upgrade to SID I do not
see
Post by Łukasz Kalamłacki
Post by George at Clug
Post by Łukasz Kalamłacki
installation of any networking packages.
What do you think?
Best regards,
Łukasz
Łukasz Kalamłacki
2024-07-31 15:10:01 UTC
Permalink
Hi,

I did another test, on fresh Debian 12.6 on Virtualbox where IPv6 works
I did the following:

I added on line to sources.lists

deb http://deb.debian.org/debian/ sid main contrib non-free-firmware

and removed all other entries.

Then I did

apt update

apt full-upgrade


and after installation and reboot I get the same error about ipv6

and sysystemctl status networking

reports error.


I really do not know how you tests this but at mine Virtualbox this does
not work


Best regards,

Łukasz
Łukasz,
I wanted to do another try, but this time stay with the initial Debian
installation, that is not alter /etc/network/interfaces file.
So this time I just built Bookworm, then upgraded to Sid.
Good news is I still cannot replicate your issue. Hopefully the issue
was because of the non sid sources.
All the best with your fault finding, and thanks for the fun of
running up a couple of VMs. I really enjoy how VMs make testing easy.
Below is my checking after building the Bookworm VM, to upgrading to
sid, and then checking once again.
George.
# cat /etc/network/interfaces
# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).
source /etc/network/interfaces.d/*
# The loopback network interface
auto lo
iface lo inet loopback
# The primary network interface
allow-hotplug enp1s0
iface enp1s0 inet dhcp
# ip -6 a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 state UNKNOWN qlen 1000
    inet6 ::1/128 scope host noprefixroute
       valid_lft forever preferred_lft forever
2: enp1s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 state UP qlen 1000
    inet6 fe80::5054:ff:fe95:9109/64 scope link
       valid_lft forever preferred_lft forever
# journalctl | grep -i ipv6
Jul 31 20:06:07 debsid1 kernel: Segment Routing with IPv6
Jul 31 20:06:07 debsid1 kernel: In-situ OAM (IOAM) with IPv6
Jul 31 20:06:07 debsid1 kernel: mip6: Mobile IPv6
===============================================================================
# nano /etc/apt/sources.list
deb https://ftp.debian.org/debian/ sid contrib main non-free
non-free-firmware
# deb-src https://ftp.debian.org/debian/ sid contrib main non-free
non-free-firmware
# apt update && apt full-upgrade -y
# systemctl reboot
# cat /etc/network/interfaces
# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).
source /etc/network/interfaces.d/*
# The loopback network interface
auto lo
iface lo inet loopback
# The primary network interface
allow-hotplug enp1s0
iface enp1s0 inet dhcp
# ip -6 a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 state UNKNOWN qlen 1000
    inet6 ::1/128 scope host noprefixroute
       valid_lft forever preferred_lft forever
2: enp1s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 state UP qlen 1000
    inet6 fe80::5054:ff:fe95:9109/64 scope link proto kernel_ll
       valid_lft forever preferred_lft forever
# journalctl | grep -i ipv6
Jul 31 20:06:07 debsid1 kernel: Segment Routing with IPv6
Jul 31 20:06:07 debsid1 kernel: In-situ OAM (IOAM) with IPv6
Jul 31 20:06:07 debsid1 kernel: mip6: Mobile IPv6
Jul 31 20:41:06 debsid1 kernel: Segment Routing with IPv6
Jul 31 20:41:06 debsid1 kernel: In-situ OAM (IOAM) with IPv6
Jul 31 20:41:06 debsid1 kernel: mip6: Mobile IPv6
Hi,
Are you able to reproduce at your side? You can verify this on
VirtualBox even without DHCPv6 server. In normal circumstances you
should get timeout on dhclient but the BUG causes that Debian
should end immediately without timeout and with the error
mentioned in the first post in syslog.
So are you able to reproduce at your side?
Best regards,
Łukasz
Łukasz,
I wonder if the issue is that you are missing
"non-free-firmware" which provides the non-free drivers for
things like sound, network and WiFI devices?
(Hopefully you only have 'sid' sources and no sources for
other versions, for example 'bookworm' or 'backports')
It could help to at least add "non-free-firmware" even if
there is another issue?
https://gist.github.com/hakerdefo/124a37ca927018f8b52a72e316d160fa#file-sources-list
<https://gist.github.com/hakerdefo/124a37ca927018f8b52a72e316d160fa#file-sources-list>
Debian Sid (Unstable) complete sources.list
deb https://ftp.debian.org/debian/
<https://ftp.debian.org/debian/> sid contrib main non-free
non-free-firmware
# deb-src https://ftp.debian.org/debian/
<https://ftp.debian.org/debian/> sid contrib main non-free
non-free-firmware
Uncomment the deb-src line, if you want to enable the source repos.
George.
Post by Łukasz Kalamłacki
Hi,
deb http://deb.debian.org/debian/
<http://deb.debian.org/debian/> sid main contrib non-free
Post by Łukasz Kalamłacki
and nothing else
Best regards,
Łukasz
śr., 31 lip 2024 o 00:50 George at Clug
Post by George at Clug
Post by Łukasz Kalamłacki
Hello,
I detected and issue with Debian SID and DHCP for IPv6.
In my network I use DHCPv6 server which works fine on
stable versions of
Post by Łukasz Kalamłacki
Post by George at Clug
Post by Łukasz Kalamłacki
Debian or Trixie but when I add to sources.list sid
source and do update
Post by Łukasz Kalamłacki
Post by George at Clug
Please let us know what you have added and also what you
have in
Post by Łukasz Kalamłacki
Post by George at Clug
"sources.list sid source"
Did you add something (or change?) something to
/etc/apt/sources.list ?
Post by Łukasz Kalamłacki
Post by George at Clug
Did you change anything else?
George.
Post by Łukasz Kalamłacki
"Link local ipv6 for interface is not configured" in
syslog and
Post by Łukasz Kalamłacki
Post by George at Clug
Post by Łukasz Kalamłacki
systemctl is reporting failed networking service and
only ipv4
Post by Łukasz Kalamłacki
Post by George at Clug
Post by Łukasz Kalamłacki
addressing is available.
configuration in /etc/network/interfaces
auto enp0s3
iface enp0s3 inet dhcp
iface enp0s3 inet6 dhcp
What is interesting when the system is already running I
dhclient -6 enp0s3
and I get ipv6 address correctly
The problem is reproducible on Virtualbox: just install
testing Debian
Post by Łukasz Kalamłacki
Post by George at Clug
Post by Łukasz Kalamłacki
and add sid to source.list and do update/upgrade in apt.
The issue is very strange because during upgrade to SID
I do not see
Post by Łukasz Kalamłacki
Post by George at Clug
Post by Łukasz Kalamłacki
installation of any networking packages.
What do you think?
Best regards,
Łukasz
Łukasz Kalamłacki
2024-07-31 17:00:01 UTC
Permalink
Hi,


I did further test on VirtualBox and on KVM.

VirtualBox on Linux somehow blocks IPv6 in bridged mode of the network
configuration, so I created VM on KVM in bridged mode of the network

brctl addbr bri0

brctl addif bri0 eth1

ifconfig bri0 up

connected cable rj45, because we cannot add to the bridge wlan iface


and after adding:

auto enp8s0

iface enp8s0 inet dhcp

iface enp8s0 inet6 dhcp

to /etc/network/interfaces


and added to /etc/apt/sources.list removing all other lines

deb http://deb.debian.org/debian/ sid main non-free-firmware
deb-src http://deb.debian.org/debian/ sid main non-free-firmware


and I did

apt update

apt full-upgrade


and everything works surprisingly.


But right now I have other issue with the system where previously I did
the update wrong way, because on that machine ipv6 still does not work
and after deleting everything besides sid from sources.lists and executing

apt update

apt full-upgrade

ipv6 fails.

Do you have solution for me?


Best regards,

Łukasz
Łukasz,
I wanted to do another try, but this time stay with the initial Debian
installation, that is not alter /etc/network/interfaces file.
So this time I just built Bookworm, then upgraded to Sid.
Good news is I still cannot replicate your issue. Hopefully the issue
was because of the non sid sources.
All the best with your fault finding, and thanks for the fun of
running up a couple of VMs. I really enjoy how VMs make testing easy.
Below is my checking after building the Bookworm VM, to upgrading to
sid, and then checking once again.
George.
# cat /etc/network/interfaces
# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).
source /etc/network/interfaces.d/*
# The loopback network interface
auto lo
iface lo inet loopback
# The primary network interface
allow-hotplug enp1s0
iface enp1s0 inet dhcp
# ip -6 a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 state UNKNOWN qlen 1000
    inet6 ::1/128 scope host noprefixroute
       valid_lft forever preferred_lft forever
2: enp1s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 state UP qlen 1000
    inet6 fe80::5054:ff:fe95:9109/64 scope link
       valid_lft forever preferred_lft forever
# journalctl | grep -i ipv6
Jul 31 20:06:07 debsid1 kernel: Segment Routing with IPv6
Jul 31 20:06:07 debsid1 kernel: In-situ OAM (IOAM) with IPv6
Jul 31 20:06:07 debsid1 kernel: mip6: Mobile IPv6
===============================================================================
# nano /etc/apt/sources.list
deb https://ftp.debian.org/debian/ sid contrib main non-free
non-free-firmware
# deb-src https://ftp.debian.org/debian/ sid contrib main non-free
non-free-firmware
# apt update && apt full-upgrade -y
# systemctl reboot
# cat /etc/network/interfaces
# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).
source /etc/network/interfaces.d/*
# The loopback network interface
auto lo
iface lo inet loopback
# The primary network interface
allow-hotplug enp1s0
iface enp1s0 inet dhcp
# ip -6 a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 state UNKNOWN qlen 1000
    inet6 ::1/128 scope host noprefixroute
       valid_lft forever preferred_lft forever
2: enp1s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 state UP qlen 1000
    inet6 fe80::5054:ff:fe95:9109/64 scope link proto kernel_ll
       valid_lft forever preferred_lft forever
# journalctl | grep -i ipv6
Jul 31 20:06:07 debsid1 kernel: Segment Routing with IPv6
Jul 31 20:06:07 debsid1 kernel: In-situ OAM (IOAM) with IPv6
Jul 31 20:06:07 debsid1 kernel: mip6: Mobile IPv6
Jul 31 20:41:06 debsid1 kernel: Segment Routing with IPv6
Jul 31 20:41:06 debsid1 kernel: In-situ OAM (IOAM) with IPv6
Jul 31 20:41:06 debsid1 kernel: mip6: Mobile IPv6
Hi,
Are you able to reproduce at your side? You can verify this on
VirtualBox even without DHCPv6 server. In normal circumstances you
should get timeout on dhclient but the BUG causes that Debian
should end immediately without timeout and with the error
mentioned in the first post in syslog.
So are you able to reproduce at your side?
Best regards,
Łukasz
Łukasz,
I wonder if the issue is that you are missing
"non-free-firmware" which provides the non-free drivers for
things like sound, network and WiFI devices?
(Hopefully you only have 'sid' sources and no sources for
other versions, for example 'bookworm' or 'backports')
It could help to at least add "non-free-firmware" even if
there is another issue?
https://gist.github.com/hakerdefo/124a37ca927018f8b52a72e316d160fa#file-sources-list
<https://gist.github.com/hakerdefo/124a37ca927018f8b52a72e316d160fa#file-sources-list>
Debian Sid (Unstable) complete sources.list
deb https://ftp.debian.org/debian/
<https://ftp.debian.org/debian/> sid contrib main non-free
non-free-firmware
# deb-src https://ftp.debian.org/debian/
<https://ftp.debian.org/debian/> sid contrib main non-free
non-free-firmware
Uncomment the deb-src line, if you want to enable the source repos.
George.
Post by Łukasz Kalamłacki
Hi,
deb http://deb.debian.org/debian/
<http://deb.debian.org/debian/> sid main contrib non-free
Post by Łukasz Kalamłacki
and nothing else
Best regards,
Łukasz
śr., 31 lip 2024 o 00:50 George at Clug
Post by George at Clug
Post by Łukasz Kalamłacki
Hello,
I detected and issue with Debian SID and DHCP for IPv6.
In my network I use DHCPv6 server which works fine on
stable versions of
Post by Łukasz Kalamłacki
Post by George at Clug
Post by Łukasz Kalamłacki
Debian or Trixie but when I add to sources.list sid
source and do update
Post by Łukasz Kalamłacki
Post by George at Clug
Please let us know what you have added and also what you
have in
Post by Łukasz Kalamłacki
Post by George at Clug
"sources.list sid source"
Did you add something (or change?) something to
/etc/apt/sources.list ?
Post by Łukasz Kalamłacki
Post by George at Clug
Did you change anything else?
George.
Post by Łukasz Kalamłacki
"Link local ipv6 for interface is not configured" in
syslog and
Post by Łukasz Kalamłacki
Post by George at Clug
Post by Łukasz Kalamłacki
systemctl is reporting failed networking service and
only ipv4
Post by Łukasz Kalamłacki
Post by George at Clug
Post by Łukasz Kalamłacki
addressing is available.
configuration in /etc/network/interfaces
auto enp0s3
iface enp0s3 inet dhcp
iface enp0s3 inet6 dhcp
What is interesting when the system is already running I
dhclient -6 enp0s3
and I get ipv6 address correctly
The problem is reproducible on Virtualbox: just install
testing Debian
Post by Łukasz Kalamłacki
Post by George at Clug
Post by Łukasz Kalamłacki
and add sid to source.list and do update/upgrade in apt.
The issue is very strange because during upgrade to SID
I do not see
Post by Łukasz Kalamłacki
Post by George at Clug
Post by Łukasz Kalamłacki
installation of any networking packages.
What do you think?
Best regards,
Łukasz
George at Clug
2024-08-01 11:30:01 UTC
Permalink
Post by Łukasz Kalamłacki
Hi,
I did further test on VirtualBox and on KVM.
VirtualBox on Linux somehow blocks IPv6 in bridged mode of the network
configuration, so I created VM on KVM in bridged mode of the network
brctl addbr bri0
brctl addif bri0 eth1
ifconfig bri0 up
connected cable rj45, because we cannot add to the bridge wlan iface
auto enp8s0
iface enp8s0 inet dhcp
iface enp8s0 inet6 dhcp
to /etc/network/interfaces
and added to /etc/apt/sources.list removing all other lines
deb http://deb.debian.org/debian/ sid main non-free-firmware
deb-src http://deb.debian.org/debian/ sid main non-free-firmware
and I did
apt update
apt full-upgrade
and everything works surprisingly.
But right now I have other issue with the system where previously I did
the update wrong way, because on that machine ipv6 still does not work
and after deleting everything besides sid from sources.lists and executing
apt update
apt full-upgrade
ipv6 fails.
Do you have solution for me?
Sadly not one that you want and need.

These two suggestions are how I have tried to update.

1) Back up data, reinstall with a format of the hard drive to make a clean installation, then restore data.

2) (I do not know if this works, but) Back up data, reinstall without a format of the hard drive to install the specific OS files and configurations, then restore data.

3) (Hopefully someone has a useful suggestion better than my above suggestions, can anyone make useful suggestions?.

I have always used suggestion 1) of a clean installation and setting up everything again. Time consuming and painful. Teaches me to be careful and check before doing any changes to my servers (well, most of the time. It has been a while since i have destroyed a server).

One reason I like Virtual Machines is I can take a copy, shutdown the original, load up the copy, make my changes, and if all goes well, then I can blow away the copy, take another copy as a version backup, then make updates to the original production copy and run this into the future.

The version backup is because I am paranoid about loosing a functioning server. But all of this is only possible if you have plenty of space to have multiple copies of your server VMs, and if running up the test server does not get updated with production data that is important and which cannot be added to the production server later on after you completed the testing.

If all your data is in the home folder, it is great if you can have the /home on a separate partition, so you can do a reinstall while formatting the / (root) partition, while not formatting the /home partition. But this has to be the configuration of your server before there are any issues. And many systems have configuration and data outside of the /home folder.

George.
Post by Łukasz Kalamłacki
Best regards,
Łukasz
Post by George at Clug
Łukasz,
I wanted to do another try, but this time stay with the initial Debian
installation, that is not alter /etc/network/interfaces file.
So this time I just built Bookworm, then upgraded to Sid.
Good news is I still cannot replicate your issue. Hopefully the issue
was because of the non sid sources.
All the best with your fault finding, and thanks for the fun of
running up a couple of VMs. I really enjoy how VMs make testing easy.
Below is my checking after building the Bookworm VM, to upgrading to
sid, and then checking once again.
George.
# cat /etc/network/interfaces
# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).
source /etc/network/interfaces.d/*
# The loopback network interface
auto lo
iface lo inet loopback
# The primary network interface
allow-hotplug enp1s0
iface enp1s0 inet dhcp
# ip -6 a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 state UNKNOWN qlen 1000
    inet6 ::1/128 scope host noprefixroute
       valid_lft forever preferred_lft forever
2: enp1s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 state UP qlen 1000
    inet6 fe80::5054:ff:fe95:9109/64 scope link
       valid_lft forever preferred_lft forever
# journalctl | grep -i ipv6
Jul 31 20:06:07 debsid1 kernel: Segment Routing with IPv6
Jul 31 20:06:07 debsid1 kernel: In-situ OAM (IOAM) with IPv6
Jul 31 20:06:07 debsid1 kernel: mip6: Mobile IPv6
===============================================================================
# nano /etc/apt/sources.list
deb https://ftp.debian.org/debian/ sid contrib main non-free
non-free-firmware
# deb-src https://ftp.debian.org/debian/ sid contrib main non-free
non-free-firmware
# apt update && apt full-upgrade -y
# systemctl reboot
# cat /etc/network/interfaces
# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).
source /etc/network/interfaces.d/*
# The loopback network interface
auto lo
iface lo inet loopback
# The primary network interface
allow-hotplug enp1s0
iface enp1s0 inet dhcp
# ip -6 a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 state UNKNOWN qlen 1000
    inet6 ::1/128 scope host noprefixroute
       valid_lft forever preferred_lft forever
2: enp1s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 state UP qlen 1000
    inet6 fe80::5054:ff:fe95:9109/64 scope link proto kernel_ll
       valid_lft forever preferred_lft forever
# journalctl | grep -i ipv6
Jul 31 20:06:07 debsid1 kernel: Segment Routing with IPv6
Jul 31 20:06:07 debsid1 kernel: In-situ OAM (IOAM) with IPv6
Jul 31 20:06:07 debsid1 kernel: mip6: Mobile IPv6
Jul 31 20:41:06 debsid1 kernel: Segment Routing with IPv6
Jul 31 20:41:06 debsid1 kernel: In-situ OAM (IOAM) with IPv6
Jul 31 20:41:06 debsid1 kernel: mip6: Mobile IPv6
Hi,
Are you able to reproduce at your side? You can verify this on
VirtualBox even without DHCPv6 server. In normal circumstances you
should get timeout on dhclient but the BUG causes that Debian
should end immediately without timeout and with the error
mentioned in the first post in syslog.
So are you able to reproduce at your side?
Best regards,
Łukasz
Łukasz,
I wonder if the issue is that you are missing
"non-free-firmware" which provides the non-free drivers for
things like sound, network and WiFI devices?
(Hopefully you only have 'sid' sources and no sources for
other versions, for example 'bookworm' or 'backports')
It could help to at least add "non-free-firmware" even if
there is another issue?
https://gist.github.com/hakerdefo/124a37ca927018f8b52a72e316d160fa#file-sources-list
<https://gist.github.com/hakerdefo/124a37ca927018f8b52a72e316d160fa#file-sources-list>
Debian Sid (Unstable) complete sources.list
deb https://ftp.debian.org/debian/
<https://ftp.debian.org/debian/> sid contrib main non-free
non-free-firmware
# deb-src https://ftp.debian.org/debian/
<https://ftp.debian.org/debian/> sid contrib main non-free
non-free-firmware
Uncomment the deb-src line, if you want to enable the source repos.
George.
Post by Łukasz Kalamłacki
Hi,
deb http://deb.debian.org/debian/
<http://deb.debian.org/debian/> sid main contrib non-free
Post by Łukasz Kalamłacki
and nothing else
Best regards,
Łukasz
śr., 31 lip 2024 o 00:50 George at Clug
Post by George at Clug
Post by Łukasz Kalamłacki
Hello,
I detected and issue with Debian SID and DHCP for IPv6.
In my network I use DHCPv6 server which works fine on
stable versions of
Post by Łukasz Kalamłacki
Post by George at Clug
Post by Łukasz Kalamłacki
Debian or Trixie but when I add to sources.list sid
source and do update
Post by Łukasz Kalamłacki
Post by George at Clug
Please let us know what you have added and also what you
have in
Post by Łukasz Kalamłacki
Post by George at Clug
"sources.list sid source"
Did you add something (or change?) something to
/etc/apt/sources.list ?
Post by Łukasz Kalamłacki
Post by George at Clug
Did you change anything else?
George.
Post by Łukasz Kalamłacki
"Link local ipv6 for interface is not configured" in
syslog and
Post by Łukasz Kalamłacki
Post by George at Clug
Post by Łukasz Kalamłacki
systemctl is reporting failed networking service and
only ipv4
Post by Łukasz Kalamłacki
Post by George at Clug
Post by Łukasz Kalamłacki
addressing is available.
configuration in /etc/network/interfaces
auto enp0s3
iface enp0s3 inet dhcp
iface enp0s3 inet6 dhcp
What is interesting when the system is already running I
dhclient -6 enp0s3
and I get ipv6 address correctly
The problem is reproducible on Virtualbox: just install
testing Debian
Post by Łukasz Kalamłacki
Post by George at Clug
Post by Łukasz Kalamłacki
and add sid to source.list and do update/upgrade in apt.
The issue is very strange because during upgrade to SID
I do not see
Post by Łukasz Kalamłacki
Post by George at Clug
Post by Łukasz Kalamłacki
installation of any networking packages.
What do you think?
Best regards,
Łukasz
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