Public bug reported:
[impact]
interfaces configured with .network file [Link] section specifying
MTUBytes will not be successfully brought up.
[test case]
configure interface e.g.
Name=ens3
[Network]
DHCP=ipv4
LinkLocalAddressing=ipv6
[Link]
MTUBytes=1550
start/restart networkd, the interface will never reach 'routable' stage
and will not get an IPv4 address.
[regression potential]
regressions will likely occur during networkd
configuration/startup/restart, and would likely cause failure to
successfully setup the interface.
[other info]
this is a regression-proposed caused by incomplete backport for bug
1850704
** Affects: systemd
Importance: Unknown
Status: Unknown
** Affects: systemd (Ubuntu)
Importance: Undecided
Status: Fix Released
** Affects: systemd (Ubuntu Bionic)
Importance: Critical
Assignee: Dan Streetman (ddstreet)
Status: In Progress
** Tags: bionic ddstreet regression-proposed systemd
** Also affects: systemd (Ubuntu Bionic)
Importance: Undecided
Status: New
** Changed in: systemd (Ubuntu)
Status: New => Fix Released
** Bug watch added: github.com/systemd/systemd/issues #9831
https://github.com/systemd/systemd/issues/9831
** Also affects: systemd via
https://github.com/systemd/systemd/issues/9831
Importance: Unknown
Status: Unknown
** Changed in: systemd (Ubuntu Bionic)
Status: New => In Progress
** Changed in: systemd (Ubuntu Bionic)
Importance: Undecided => Critical
** Changed in: systemd (Ubuntu Bionic)
Assignee: (unassigned) => Dan Streetman (ddstreet)
** Tags added: bionic ddstreet regression-proposed systemd
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https://bugs.launchpad.net/bugs/1852754
Title:
networkd does not complete interface configuration if Link MTUBytes is
set
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