marked verified per comment 10
** Tags removed: verification-needed verification-needed-jammy
** Tags added: verification-done verification-done-jammy
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Tested 249.11-0ubuntu3.3 and DuplicateAddressDetection is now honored as
expected. No other issues were observed.
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https://bugs.launchpad.net/bugs/1964494
Hello Alejandro, or anyone else affected,
Accepted systemd into jammy-proposed. The package will build now and be
available at
https://launchpad.net/ubuntu/+source/systemd/249.11-0ubuntu3.3 in a few
hours, and then in the -proposed repository.
Please help us by testing this new package. See
This bug was fixed in the package systemd - 249.11-0ubuntu4
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systemd (249.11-0ubuntu4) kinetic; urgency=medium
* d/p/lp1964494-network-do-not-enable-IPv4-ACD-for-IPv4-link-local-a.patch:
do not enable IPv4 ACD for IPv4 link-local address if ACD is
disabled explicitly
** Changed in: systemd (Ubuntu Kinetic)
Status: Triaged => Fix Committed
** Changed in: systemd (Ubuntu Jammy)
Status: New => In Progress
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This SRU should be combined with LP: #1969375 as uploaded in
249.11-0ubuntu3.3 (containing some more autopkgtest related changes)
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** Description changed:
- A customer reported network disconnections on their storage
+ [impact]
+
+ manual disabling of ipv4 DAD (IACD) for static link-local address does
+ not work in jammy
+
+ [test case]
+
+ see 'Reproducer' in original description below
+
+ [regression potential]
+
+
** Changed in: systemd
Status: New => Fix Released
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https://bugs.launchpad.net/bugs/1964494
Title:
Setting DuplicateAddressDetection=none doesn't
** Changed in: systemd
Status: Unknown => New
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https://bugs.launchpad.net/bugs/1964494
Title:
Setting DuplicateAddressDetection=none doesn't disable
There is now an upstream fix to keep ACD on by default on ipv4ll
addresses, but still honor the user settings if they are set:
https://github.com/systemd/systemd/pull/22824
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Thank you for reporting this. I've forwarded it to the upstream
developers, as I think at very least this new behavior should be
documented in
https://systemd.network/systemd.network.html#DuplicateAddressDetection=
https://github.com/systemd/systemd/issues/22763
** Bug watch added:
Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: systemd (Ubuntu)
Status: New => Confirmed
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I agree, a user-configured setting should be honored. Another thing to
consider is that according to the Jammy systemd.network man page, the
default should be 'ipv6' so one would expect that to be a global
default, but it gets overridden for link-local IPs due to this commit.
[1]
> I think this commit [1] may be related (landed in systemd v249)
yeah, that commit seems to be intentionally forcing ACD on for
statically configured ipv4, i'm not sure quite why, it seems like a
user-configured setting should be honored; but possibly Yu was trying to
default it to on instead of
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