Thank you Dan Streetman and all for your work!
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https://bugs.launchpad.net/bugs/1867375
Title:
systemd-networkd: UseRoutes behavior change with introduction
This bug was fixed in the package systemd - 237-3ubuntu10.41
---
systemd (237-3ubuntu10.41) bionic; urgency=medium
[ Dan Streetman ]
* d/p/lp1867375/0001-network-Allow-to-configure-GW-even-UseRoutes-false.patch,
This bug was fixed in the package systemd - 242-7ubuntu3.9
---
systemd (242-7ubuntu3.9) eoan; urgency=medium
* d/p/lp1867375/0001-network-Allow-to-configure-GW-even-UseRoutes-false.patch,
d/p/lp1867375/0002-network-add-a-flag-to-ignore-gateway-provided-by-DHC.patch,
This bug was fixed in the package systemd - 245.4-4ubuntu3.1
---
systemd (245.4-4ubuntu3.1) focal; urgency=medium
*
d/p/lp1867375/0001-network-add-a-flag-to-ignore-gateway-provided-by-DHC.patch,
d/p/lp1867375/0002-test-network-add-a-test-case-for-DHCPv4.UseGateway-n.patch,
bionic:
root@lp1867375-b:~# cat /etc/systemd/network/10.network
[Match]
Name=eth0
[Network]
DHCP=ipv4
LinkLocalAddressing=ipv6
[DHCP]
RouteMetric=100
UseMTU=true
UseRoutes=false
UseGateway=true
root@lp1867375-b:~# dpkg -l systemd|grep systemd
ii systemd237-3ubuntu10.40 amd64
eoan:
root@lp1867375-e:/etc/systemd/network# cat 10.network
[Match]
Name=eth0
[Network]
DHCP=ipv4
LinkLocalAddressing=ipv6
[DHCP]
RouteMetric=100
UseMTU=true
UseRoutes=false
UseGateway=true
root@lp1867375-e:/etc/systemd/network# dpkg -l systemd|grep systemd
ii systemd242-7ubuntu3.8
I can confirm, with "systemd 237-3ubuntu10.41 amd64" this bug is fixed for me.
To clarify: "use-routes=false" in netplan ignores the default gateway given by
DHCP.
I'm using Ubuntu Server 18.04.4 with wired network interfaces.
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Hello Sunil, or anyone else affected,
Accepted systemd into bionic-proposed. The package will build now and be
available at
https://launchpad.net/ubuntu/+source/systemd/237-3ubuntu10.41 in a few
hours, and then in the -proposed repository.
Please help us by testing this new package. See
Hello Sunil, or anyone else affected,
Accepted systemd into eoan-proposed. The package will build now and be
available at https://launchpad.net/ubuntu/+source/systemd/242-7ubuntu3.9
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 - 245.5-2ubuntu2
---
systemd (245.5-2ubuntu2) groovy; urgency=medium
[ Dan Streetman ]
* network: Change IgnoreCarrierLoss default to value of
ConfigureWithoutCarrier.
This fixes bridges with static IP configuration. (LP: #1860926)
thanks for verifying @toshko3!
i marked as verification-done for focal. (I also gave it a quick test
to verify).
** Tags removed: verification-needed verification-needed-focal
** Tags added: verification-done verification-done-focal
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I can confirm, with "systemd 245.4-4ubuntu3.1 amd64" this bug is fixed for me.
To clarify: "use-routes=false" in netplan ignores the default gateway given by
DHCP.
I'm using Ubuntu Server 20.04 with wired network interfaces.
I don't know how to perform more tests, but don't see any problems so
Hi Brian
We will help in testing this for sure once it is available in 18.04.
according to my understanding this is being pushed to bionic too right?
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Hello Sunil, or anyone else affected,
Accepted systemd into focal-proposed. The package will build now and be
available at
https://launchpad.net/ubuntu/+source/systemd/245.4-4ubuntu3.1 in a few
hours, and then in the -proposed repository.
Please help us by testing this new package. See
> Please, forgive my ignorance, but how do I return to normal official
packages, after I remove your PPA? Because "apt update" doesn't detect
any changes. after "add-apt-repository --remove ppa:ddstreet/systemd".
once the next (fixed) systemd version is released, it will have a higher
version
I can confirm, with your build from
"https://launchpad.net/~ddstreet/+archive/ubuntu/systemd;, networkd is
behaving like before in Ubuntu 18.04. With this patch "use-routes=false"
in netplan ignores the default gateway given by DHCP.
Please, forgive my ignorance, but how do I return to normal
Thank you very much for the rapid info!
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https://bugs.launchpad.net/bugs/1867375
Title:
systemd-networkd: UseRoutes behavior change with introduction of
> (in the [DHCPv4] section only - not in the deprecated/legacy [DHCP]
section)
to clarify, upstream commit 4f7331a85eee2134cc2383a9eeb0445593a6be15
(included starting in Focal) deprecated most of the [DHCP] section
parameters by moving them into the [DHCPv4] section. Users of networkd
(looking
Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: netplan.io (Ubuntu)
Status: New => Confirmed
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Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: netplan.io (Ubuntu Focal)
Status: New => Confirmed
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> Also is it planned to be included with simple updates or only in a
future "Ubuntu 20.10" release?
this is fixed in the systemd version currently in the upload queue for
Focal, so once that is accepted and assuming there are no regressions
while it is tested in the -proposed pocket, this bug
Hi,
this bug is affecting me as well on Focal (Ubuntu 20.04).
I used the option use-routes=false in netplan to ignore the default gateway and
now it doesn't work.
As you have explained, now the right way is to use the UseGateway option of
systemd.
But there is no option in the current version
** Description changed:
[impact]
the networkd UseRoutes parameter allowed ignoring all routes provided by
a dhcp4 server, including the route via the dhcp4-provided gateway.
This was the behavior of networkd until recently, and in Focal the
UseRoutes parameter does *not* prevent
** Merge proposal linked:
https://code.launchpad.net/~ddstreet/ubuntu/+source/systemd/+git/systemd/+merge/383661
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https://bugs.launchpad.net/bugs/1867375
** Changed in: systemd (Ubuntu Bionic)
Assignee: (unassigned) => Dan Streetman (ddstreet)
** Changed in: systemd (Ubuntu Eoan)
Assignee: (unassigned) => Dan Streetman (ddstreet)
** Changed in: systemd (Ubuntu Focal)
Assignee: (unassigned) => Dan Streetman (ddstreet)
** Changed
** Merge proposal linked:
https://code.launchpad.net/~ddstreet/ubuntu/+source/systemd/+git/systemd/+merge/382806
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** Description changed:
[impact]
the networkd UseRoutes parameter allowed ignoring all routes provided by
a dhcp4 server, including the route via the dhcp4-provided gateway.
This was the behavior of networkd until recently, and in Focal the
UseRoutes parameter does *not* prevent
Note for netplan.io: if the PR is accepted, then there shouldn't be any
need for immediate change in netplan; however in the future, netplan
likely will need a new option 'use-gateway', similar to the existing
'use-routes' parameter.
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opened PR to restore UseRoutes= backwards compatibility
https://github.com/systemd/systemd/pull/15443
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https://bugs.launchpad.net/bugs/1867375
Title:
** Description changed:
- requesting backport of PR https://github.com/systemd/systemd/pull/14983 which
fixes the issue described in
+ [impact]
+
+ the networkd UseRoutes parameter allowed ignoring all routes provided by
+ a dhcp4 server, including the route via the dhcp4-provided gateway.
+
** Also affects: netplan.io (Ubuntu)
Importance: Undecided
Status: New
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Title:
systemd-networkd: UseRoutes
@sunil-mukundan I hope you don't mind, I'm adjusting the bug subject
slightly to indicate that things need to be worked on both for SRU
releases as well as for Focal.
** Summary changed:
- systemd-networkd: Setting UseRoutes to False results in DHCP default gateway
not being installed
+
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