+ <example>
+ <title>/etc/systemd/network/ipip.network</title>
+
+ <programlisting>[Match]
+Name=em1
+
+[Network]
+Tunnel=ipip-tun</programlisting>
+ </example>
+
+ <example>
+ <title>/etc/systemd/network/sit.network</title>
+
+ <programlisting>[Match]
+Name=em1
+
+[Network]
+Tunnel=sit-tun</programlisting>
+ </example>
+
+ <example>
+ <title>/etc/systemd/network/gre.network</title>
+
+ <programlisting>[Match]
+Name=em1
+
+[Network]
+Tunnel=gre-tun</programlisting>
+ </example>
+
+ <example>
+ <title>/etc/systemd/network/vti.network</title>
+
+ <programlisting>[Match]
+Name=em1
+
+[Network]
+Tunnel=vti-tun</programlisting>
+ </example>