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Message #09012
[Bug 1639754] Re: Ethernet devices have higher metric than wlan or wwan ones
This bug was fixed in the package nplan - 0.14~16.04
---------------
nplan (0.14~16.04) xenial; urgency=medium
* Update to 0.14 for xenial.
* tests/integration.py: Re-enable search domain check, that fix landed in
xenial.
nplan (0.14) zesty; urgency=medium
* tests/generate.py: Introduce macros for commonly expected networkd output
* networkd: Use NetworkManager compatible DHCP route metrics (LP: #1639754)
* doc/netplan.md: Fix wrong wifi reference in "br0" example
* doc/netplan.md: Clarify introduction
* tests/integration.py: Fix race condition with waiting for networkd
-- Martin Pitt <martin.pitt@xxxxxxxxxx> Wed, 09 Nov 2016 17:00:31
+0100
** Changed in: nplan (Ubuntu Xenial)
Status: Fix Committed => Fix Released
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https://bugs.launchpad.net/bugs/1639754
Title:
Ethernet devices have higher metric than wlan or wwan ones
Status in snappy-hwe-snaps:
New
Status in nplan package in Ubuntu:
Fix Released
Status in nplan source package in Xenial:
Fix Released
Bug description:
In Ubuntu Core, in all supported devices ethernet devices have higher
metric than wlan or wwan devices, so packets get routed to the latter
always. The metric is 1024, while for instance network-manager assigns
these numbers:
ethernet -> 100
wlan -> 600
wwan -> 700
This happens because ethernet devices are managed by default by
networkd in ubuntu-core, while wlan and wwan are managed by network-
manager if installed. It would make sense to either assign a metric of
100 in networkd configuration file or change network-manager snap so
it handles ethernet in all cases when installed.
SRU TEST CASE:
* Set up an ethernet and wifi connection using netplan, and check metrics in "ip route". With the current version they have "1024", with the proposed update the ethernet one will have 100, the wifi one 600.
REGRESSION POTENTIAL: It could in principle happen that someone relies
on the current high metric and this interferes with some custom
routing. However, netplan has only been used in snappy on xenial since
recently, and there is no other official way to configure routing on
snappy than netplan. So in practice this should be very low.
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