From mboxrd@z Thu Jan  1 00:00:00 1970
From: David Ahern <dsahern@gmail.com>
Subject: Re: [PATCH net] net/ipv6: Only update MTU metric if it set
Date: Thu, 30 Aug 2018 16:13:38 -0600
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To: Jan Janssen <medhefgo@web.de>
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On 8/30/18 3:49 PM, Jan Janssen wrote:
> You mentioned that systemd-networkd is doing something silly here, so I was 
> wondering if you could make a bug report to fix the underlying issue? I don't 
> mind doing it myself but you're the expert and can explain things better.

It is silly in the sense that systemd-networkd installs a default route
with an MTU and then pushes down updates (route replace) without the MTU.