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-rw-r--r--man/systemd.netdev.xml5
1 files changed, 4 insertions, 1 deletions
diff --git a/man/systemd.netdev.xml b/man/systemd.netdev.xml
index acd845498c..275ee528a0 100644
--- a/man/systemd.netdev.xml
+++ b/man/systemd.netdev.xml
@@ -177,7 +177,9 @@
<para>The maximum transmission unit in bytes to
set for the device. The usual suffixes K, M, G,
are supported and are understood to the base of
- 1024.</para>
+ 1024. This key is not currently suported for
+ <literal>tun</literal> or <literal>tap</literal> devices.
+ </para>
</listitem>
</varlistentry>
<varlistentry>
@@ -187,6 +189,7 @@
If none is given, one is generated based on
the interface name and the
<citerefentry><refentrytitle>machine-id</refentrytitle><manvolnum>5</manvolnum></citerefentry>.
+ This key is not currently suported for <literal>tun</literal> or <literal>tap</literal> devices.
</para>
</listitem>
</varlistentry>