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<base href="https://bugs.freedesktop.org/" />
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - systemd network: MTUBytes ignored for NetDev kind "gre""
href="https://bugs.freedesktop.org/show_bug.cgi?id=89506">89506</a>
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<th>Summary</th>
<td>systemd network: MTUBytes ignored for NetDev kind "gre"
</td>
</tr>
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<th>Product</th>
<td>systemd
</td>
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<th>Version</th>
<td>unspecified
</td>
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<th>Hardware</th>
<td>x86-64 (AMD64)
</td>
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<th>OS</th>
<td>Linux (All)
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>normal
</td>
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<th>Priority</th>
<td>medium
</td>
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<th>Component</th>
<td>general
</td>
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<th>Assignee</th>
<td>systemd-bugs@lists.freedesktop.org
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<th>Reporter</th>
<td>linus.luessing@c0d3.blue
</td>
</tr>
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<th>QA Contact</th>
<td>systemd-bugs@lists.freedesktop.org
</td>
</tr></table>
<p>
<div>
<pre>We are having a recent Arch Linux here, but unfortunately the MTUBytes option
seems to get ignored for GRE tunnels:
-----
$ cat /etc/systemd/network/31-somename.netdev
[NetDev]
Name=somename
Kind=gre
MTUBytes=1400
[Tunnel]
Local=xxx.xxx.xxx.xxx
Remote=yyy.yyy.yyy.yyy
TTL=64
-----
Even after a complete system reboot the MTU is set to 1476 instead of 1400.
Systemd packages:
-----
$ pacman -Qs "systemd"
local/libsystemd 218-2
systemd client libraries
local/systemd 218-2
system and service manager
local/systemd-sysvcompat 218-2 (base)
sysvinit compat for systemd
-----</pre>
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</p>
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