[systemd-devel] systemd-resolved cannot survive router reinstall

[Tom Gundersen]

On Tue, Aug 12, 2014 at 2:48 AM, Anatol Pomozov
<anatol.pomozov at gmail.com> wrote:
> Thanks for the instructions, here is the log
> https://gist.github.com/anatol/cb497118cfad6af3dc60
>
> The interesting entries are:
> Aug 11 17:30:25 theserver systemd-networkd[32648]: ICMPv6 CLIENT:
> Received Router Advertisment flags MANAGED/OTHER
> Aug 11 17:30:25 theserver systemd-networkd[32648]: ICMPv6 CLIENT:
> Received Router Advertisment flags MANAGED/OTHER
> Aug 11 17:30:30 theserver systemd-networkd[32648]: ICMPv6 CLIENT:
> Received Router Advertisment flags MANAGED/OTHER
>
> Is it the "heartbeat" message from the router?

This is IPv6 router advertisment. Not related to your DHCPv4 problems.

When the router is rebooted, we should expect to get -LOWER_UP
followed by +LOWER_UP in the logs (same as when unplugging the cable).
Could you try running "ip monitor link" when rebooting the rooter and
paste whatever events you get? How about when you unplug/replug the
cable?

> And here is my network config:
>
> $ cat /etc/systemd/network/dhcp.network
> [Match]
> Name=en*
>
> [Network]
> DHCP=yes
>
>
> The problem exists not only when I reinstall the router firmware but
> also when I just reboot it. But I believe openwrt does the same in
> both cases, it just drops all the leases and expects that device
> reacquire DHCP leases when router gets online. systemd-networkd
> restart "fixes" the problem but I expect that it should work without
> systemd-networkd restart.