Package: systemd Version: 232-25+deb9u9 Severity: important Dear Maintainer, this issue is a bit outside my confort zone but I still want to try to report this bug.
It is probably the same as Launchpad#1800836[0] and according to that ticket the issue fixed in a new version of systemd. But for all of us that are stuck with Stretch for some years to come it would be great if someone could look in to the issue and backport the fix. The problem seems to be that systemd-networkd doesn't expire or take note of the RA Default Lifetime. In older OSes (or Stretch without systemd-networkd) you could see the expiration of the default route: ``` $ ip -6 r 2001:6b0:5:1568::/64 dev ens192 proto kernel metric 256 expires 2591756sec pref medium fe80::/64 dev ens192 proto kernel metric 256 pref medium default via fe80::209:fff:fe09:5 dev ens192 proto ra metric 1024 expires 1556sec pref medium ``` but with systemd-networkd that information is lost: ``` ip -6 r 2001:6b0:5:1219::/64 dev ens33 proto ra metric 1024 pref medium fe80::/64 dev ens33 proto kernel metric 256 pref medium default via fe80::209:fff:fe09:5 dev ens33 proto ra metric 1024 mtu 1500 pref medium ``` My quess is that this is not an display issue since we can reproduce the same behavior as in Launchpad#1800836[0]: Multiple default routes after a firewall failover. Multiple default routes causes strange connection errors. After failover with systemd-networkd: ``` ip -6 r 2001:6b0:5:1219::/64 dev ens33 proto ra metric 1024 pref medium fe80::/64 dev ens33 proto kernel metric 256 pref medium default via fe80::209:fff:fe09:5 dev ens33 proto ra metric 1024 mtu 1500 pref medium default via fe80::724c:a5ff:fe58:42a2 dev ens33 proto ra metric 1024 mtu 1500 pref medium ``` After failover without systemd-networkd: ``` ip -6 r 2001:6b0:5:1568::/64 dev ens192 proto kernel metric 256 expires 2591536sec pref medium fe80::/64 dev ens192 proto kernel metric 256 pref medium default via fe80::209:fff:fe09:5 dev ens192 proto ra metric 1024 expires 1336sec pref medium ``` Let me know if there is any other information I can provide to help out. [0] https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1800836 -- Package-specific info: -- System Information: Debian Release: 9.8 APT prefers stretch-updates-test APT policy: (500, 'stretch-updates-test'), (500, 'stretch-security-test'), (500, 'stable') Architecture: amd64 (x86_64) Kernel: Linux 4.9.0-8-amd64 (SMP w/8 CPU cores) Locale: LANG=en_GB.UTF-8, LC_CTYPE=UTF-8 (charmap=UTF-8) (ignored: LC_ALL set to en_US.UTF-8), LANGUAGE=en_GB:en (charmap=UTF-8) (ignored: LC_ALL set to en_US.UTF-8) Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) Versions of packages systemd depends on: ii adduser 3.115 ii libacl1 2.2.52-3+b1 ii libapparmor1 2.11.0-3+deb9u2 ii libaudit1 1:2.6.7-2 ii libblkid1 2.29.2-1+deb9u1 ii libc6 2.24-11+deb9u4 ii libcap2 1:2.25-1 ii libcryptsetup4 2:1.7.3-4 ii libgcrypt20 1.7.6-2+deb9u3 ii libgpg-error0 1.26-2 ii libidn11 1.33-1 ii libip4tc0 1.6.0+snapshot20161117-6 ii libkmod2 23-2 ii liblz4-1 0.0~r131-2+b1 ii liblzma5 5.2.2-1.2+b1 ii libmount1 2.29.2-1+deb9u1 ii libpam0g 1.1.8-3.6 ii libseccomp2 2.3.1-2.1+deb9u1 ii libselinux1 2.6-3+b3 ii libsystemd0 232-25+deb9u9 ii mount 2.29.2-1+deb9u1 ii procps 2:3.3.12-3+deb9u1 ii util-linux 2.29.2-1+deb9u1 Versions of packages systemd recommends: ii dbus 1.10.26-0+deb9u1 ii libpam-systemd 232-25+deb9u9 Versions of packages systemd suggests: pn policykit-1 <none> pn systemd-container <none> pn systemd-ui <none> Versions of packages systemd is related to: pn dracut <none> ii initramfs-tools 0.130 ii udev 232-25+deb9u9 -- no debconf information
