man: clarify different uses of MACAddress

Improve the networkd documentation to clarify that Match.MACAddress is for
selection, but Link.MACAddress describes an action to be taken.

diff --git a/man/systemd.network.xml b/man/systemd.network.xml
index 70e3804..35800be 100644 (file)
--- a/man/systemd.network.xml
+++ b/man/systemd.network.xml
@@ -105,7 +105,8 @@
         <varlistentry>
           <term><varname>MACAddress=</varname></term>
           <listitem>
-            <para>The hardware address.</para>
+            <para>The hardware address of the interface (use full colon-delimited hexadecimal, e.g.,
+            01:23:45:67:89:ab).</para>
           </listitem>
         </varlistentry>
         <varlistentry>
@@ -198,7 +199,7 @@
       <varlistentry>
         <term><varname>MACAddress=</varname></term>
         <listitem>
-          <para>The hardware address.</para>
+          <para>The hardware address to set for the device.</para>
         </listitem>
       </varlistentry>
       <varlistentry>