man/systemd.network.xml

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   8   Copyright 2013 Tom Gundersen
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  23
  24 <refentry id="systemd.network" conditional='ENABLE_NETWORKD'>
  25
  26   <refentryinfo>
  27     <title>systemd.network</title>
  28     <productname>systemd</productname>
  29
  30     <authorgroup>
  31       <author>
  32         <contrib>Developer</contrib>
  33         <firstname>Tom</firstname>
  34         <surname>Gundersen</surname>
  35         <email>teg@jklm.no</email>
  36       </author>
  37     </authorgroup>
  38   </refentryinfo>
  39
  40   <refmeta>
  41     <refentrytitle>systemd.network</refentrytitle>
  42     <manvolnum>5</manvolnum>
  43   </refmeta>
  44
  45   <refnamediv>
  46     <refname>systemd.network</refname>
  47     <refpurpose>Network configuration</refpurpose>
  48   </refnamediv>
  49
  50   <refsynopsisdiv>
  51     <para><filename><replaceable>network</replaceable>.network</filename></para>
  52   </refsynopsisdiv>
  53
  54   <refsect1>
  55     <title>Description</title>
  56
  57     <para>Network setup is performed by
  58     <citerefentry><refentrytitle>systemd-networkd</refentrytitle><manvolnum>8</manvolnum></citerefentry>.
  59     </para>
  60
  61     <para>Network files must have the extension
  62     <filename>.network</filename>; other extensions are ignored.
  63     Networks are applied to links whenever the links appear.</para>
  64
  65     <para>The <filename>.network</filename> files are read from the
  66     files located in the system network directory
  67     <filename>/usr/lib/systemd/network</filename>, the volatile
  68     runtime network directory
  69     <filename>/run/systemd/network</filename> and the local
  70     administration network directory
  71     <filename>/etc/systemd/network</filename>. All configuration files
  72     are collectively sorted and processed in lexical order, regardless
  73     of the directories in which they live. However, files with
  74     identical filenames replace each other. Files in
  75     <filename>/etc</filename> have the highest priority, files in
  76     <filename>/run</filename> take precedence over files with the same
  77     name in <filename>/usr/lib</filename>. This can be used to
  78     override a system-supplied configuration file with a local file if
  79     needed; a symlink in <filename>/etc</filename> with the same name
  80     as a configuration file in <filename>/usr/lib</filename>, pointing
  81     to <filename>/dev/null</filename>, disables the configuration file
  82     entirely.</para>
  83
  84   </refsect1>
  85
  86   <refsect1>
  87     <title>[Match] Section Options</title>
  88
  89       <para>The network file contains a <literal>[Match]</literal>
  90       section, which determines if a given network file may be applied
  91       to a given device; and a <literal>[Network]</literal> section
  92       specifying how the device should be configured. The first (in
  93       lexical order) of the network files that matches a given device
  94       is applied.</para>
  95
  96       <para>A network file is said to match a device if each of the
  97       entries in the <literal>[Match]</literal> section matches, or if
  98       the section is empty. The following keys are accepted:</para>
  99
 100       <variablelist class='network-directives'>
 101         <varlistentry>
 102           <term><varname>MACAddress=</varname></term>
 103           <listitem>
 104             <para>The hardware address.</para>
 105           </listitem>
 106         </varlistentry>
 107         <varlistentry>
 108           <term><varname>Path=</varname></term>
 109           <listitem>
 110             <para>A whitespace-separated list of shell-style globs
 111             matching the persistent path, as exposed by the udev
 112             property <literal>ID_PATH</literal>.</para>
 113           </listitem>
 114         </varlistentry>
 115         <varlistentry>
 116           <term><varname>Driver=</varname></term>
 117           <listitem>
 118             <para>A whitespace-separated list of shell-style globs
 119             matching the driver currently bound to the device, as
 120             exposed by the udev property <literal>DRIVER</literal>
 121             of its parent device, or if that is not set the driver
 122             as exposed by <literal>ethtool -i</literal> of the
 123             device itself.</para>
 124           </listitem>
 125         </varlistentry>
 126         <varlistentry>
 127           <term><varname>Type=</varname></term>
 128           <listitem>
 129             <para>A whitespace-separated list of shell-style globs
 130             matching the device type, as exposed by the udev property
 131             <literal>DEVTYPE</literal>.</para>
 132           </listitem>
 133         </varlistentry>
 134         <varlistentry>
 135           <term><varname>Name=</varname></term>
 136           <listitem>
 137             <para>A whitespace-separated list of shell-style globs
 138             matching the device name, as exposed by the udev property
 139             <literal>INTERFACE</literal>.</para>
 140           </listitem>
 141         </varlistentry>
 142         <varlistentry>
 143           <term><varname>Host=</varname></term>
 144           <listitem>
 145             <para>Matches against the hostname or machine ID of the
 146             host. See <literal>ConditionHost=</literal> in
 147             <citerefentry><refentrytitle>systemd.unit</refentrytitle><manvolnum>5</manvolnum></citerefentry>
 148             for details.
 149             </para>
 150           </listitem>
 151         </varlistentry>
 152         <varlistentry>
 153           <term><varname>Virtualization=</varname></term>
 154           <listitem>
 155             <para>Checks whether the system is executed in a virtualized
 156             environment and optionally test whether it is a specific
 157             implementation. See <literal>ConditionVirtualization=</literal> in
 158             <citerefentry><refentrytitle>systemd.unit</refentrytitle><manvolnum>5</manvolnum></citerefentry>
 159             for details.
 160             </para>
 161           </listitem>
 162         </varlistentry>
 163         <varlistentry>
 164           <term><varname>KernelCommandLine=</varname></term>
 165           <listitem>
 166             <para>Checks whether a specific kernel command line option is
 167             set (or if prefixed with the exclamation mark unset). See
 168             <literal>ConditionKernelCommandLine=</literal> in
 169             <citerefentry><refentrytitle>systemd.unit</refentrytitle><manvolnum>5</manvolnum></citerefentry>
 170             for details.
 171             </para>
 172           </listitem>
 173         </varlistentry>
 174         <varlistentry>
 175           <term><varname>Architecture=</varname></term>
 176           <listitem>
 177             <para>Checks whether the system is running on a specific
 178             architecture. See <literal>ConditionArchitecture=</literal> in
 179             <citerefentry><refentrytitle>systemd.unit</refentrytitle><manvolnum>5</manvolnum></citerefentry>
 180             for details.
 181             </para>
 182           </listitem>
 183         </varlistentry>
 184       </variablelist>
 185
 186   </refsect1>
 187
 188   <refsect1>
 189     <title>[Link] Section Options</title>
 190
 191     <para> The <literal>[Link]</literal> section accepts the following keys:</para>
 192
 193     <variablelist class='network-directives'>
 194       <varlistentry>
 195         <term><varname>MACAddress=</varname></term>
 196         <listitem>
 197           <para>The hardware address.</para>
 198         </listitem>
 199       </varlistentry>
 200       <varlistentry>
 201         <term><varname>MTUBytes=</varname></term>
 202         <listitem>
 203           <para>The maximum transmission unit in bytes to set for the
 204           device. The usual suffixes K, M, G, are supported and are
 205           understood to the base of 1024.</para>
 206         </listitem>
 207       </varlistentry>
 208     </variablelist>
 209   </refsect1>
 210
 211   <refsect1>
 212     <title>[Network] Section Options</title>
 213
 214       <para>The <literal>[Network]</literal> section accepts the following keys:</para>
 215
 216       <variablelist class='network-directives'>
 217         <varlistentry>
 218           <term><varname>Description=</varname></term>
 219           <listitem>
 220             <para>A description of the device. This is only used for
 221             presentation purposes.</para>
 222           </listitem>
 223         </varlistentry>
 224         <varlistentry>
 225           <term><varname>DHCP=</varname></term>
 226           <listitem>
 227             <para>Enables DHCPv4 and/or DHCPv6 support. Accepts
 228             <literal>yes</literal>, <literal>no</literal>,
 229             <literal>ipv4</literal>, or <literal>ipv6</literal>.</para>
 230           </listitem>
 231         </varlistentry>
 232         <varlistentry>
 233           <term><varname>DHCPServer=</varname></term>
 234           <listitem>
 235             <para>A boolean. Enables a basic DHCPv4 server on the
 236             device. Mostly useful for handing out leases to container
 237             instances.</para>
 238           </listitem>
 239         </varlistentry>
 240         <varlistentry>
 241           <term><varname>LinkLocalAddressing=</varname></term>
 242           <listitem>
 243             <para>Enables link-local address autoconfiguration. Accepts
 244             <literal>yes</literal>, <literal>no</literal>,
 245             <literal>ipv4</literal>, or <literal>ipv6</literal>. Defaults to
 246             <literal>ipv6</literal>.</para>
 247           </listitem>
 248         </varlistentry>
 249         <varlistentry>
 250           <term><varname>IPv4LLRoute=</varname></term>
 251           <listitem>
 252             <para>A boolean. When true, sets up the route needed for
 253             non-IPv4LL hosts to communicate with IPv4LL-only hosts. Defaults
 254             to false.
 255             </para>
 256           </listitem>
 257         </varlistentry>
 258         <varlistentry>
 259           <term><varname>IPv6Token=</varname></term>
 260           <listitem>
 261             <para>An IPv6 address with the top 64 bits unset. When set, indicates the
 262             64 bits interface part of SLAAC IPv6 addresses for this link. By default
 263             it is autogenerated.</para>
 264           </listitem>
 265         </varlistentry>
 266         <varlistentry>
 267           <term><varname>LLMNR=</varname></term>
 268           <listitem>
 269             <para>A boolean or <literal>resolve</literal>. When true, enables
 270             Link-Local Multicast Name Resolution on the link, when set to
 271             <literal>resolve</literal> only resolution is enabled, but not
 272             announcement. Defaults to true.</para>
 273           </listitem>
 274         </varlistentry>
 275         <varlistentry>
 276           <term><varname>LLDP=</varname></term>
 277           <listitem>
 278             <para>A boolean. When true, enables LLDP link receive support.
 279             </para>
 280           </listitem>
 281         </varlistentry>
 282         <varlistentry>
 283           <term><varname>Address=</varname></term>
 284           <listitem>
 285             <para>A static IPv4 or IPv6 address and its prefix length,
 286             separated by a <literal>/</literal> character. Specify
 287             this key more than once to configure several addresses.
 288             The format of the address must be as described in
 289             <citerefentry><refentrytitle>inet_pton</refentrytitle><manvolnum>3</manvolnum></citerefentry>.
 290             This is a short-hand for an [Address] section only
 291             containing an Address key (see below). This option may be
 292             specified more than once.
 293             </para>
 294
 295             <para>If the specified address is 0.0.0.0 (for IPv4) or
 296             [::] (for IPv6), a new address range of the requested size
 297             is automatically allocated from a system-wide pool of
 298             unused ranges. The allocated range is checked against all
 299             current network interfaces and all known network
 300             configuration files to avoid address range conflicts. The
 301             default system-wide pool consists of 192.168.0.0/16,
 302             172.16.0.0/12 and 10.0.0.0/8 for IPv4, and fc00::/7 for
 303             IPv6. This functionality is useful to manage a large
 304             number of dynamically created network interfaces with the
 305             same network configuration and automatic address range
 306             assignment.</para>
 307
 308           </listitem>
 309         </varlistentry>
 310         <varlistentry>
 311           <term><varname>Gateway=</varname></term>
 312           <listitem>
 313             <para>The gateway address, which must be in the format
 314             described in
 315             <citerefentry><refentrytitle>inet_pton</refentrytitle><manvolnum>3</manvolnum></citerefentry>.
 316             This is a short-hand for a [Route] section only containing
 317             a Gateway key. This option may be specified more than
 318             once.</para>
 319           </listitem>
 320         </varlistentry>
 321         <varlistentry>
 322           <term><varname>DNS=</varname></term>
 323           <listitem>
 324             <para>A DNS server address, which must be in the format
 325             described in
 326             <citerefentry><refentrytitle>inet_pton</refentrytitle><manvolnum>3</manvolnum></citerefentry>.
 327             This option may be specified more than once.</para>
 328           </listitem>
 329         </varlistentry>
 330         <varlistentry>
 331           <term><varname>Domains=</varname></term>
 332           <listitem>
 333             <para>The domains used for DNS resolution over this link.</para>
 334           </listitem>
 335         </varlistentry>
 336         <varlistentry>
 337           <term><varname>NTP=</varname></term>
 338           <listitem>
 339             <para>An NTP server address. This option may be specified more than once.</para>
 340           </listitem>
 341         </varlistentry>
 342         <varlistentry>
 343           <term><varname>IPForward=</varname></term>
 344           <listitem><para>Configures IP forwarding for the network
 345           interface. If enabled incoming packets on the network
 346           interface will be forwarded to other interfaces according to
 347           the routing table. Takes either a boolean argument, or the
 348           values <literal>ipv4</literal> or <literal>ipv6</literal>,
 349           which only enables IP forwarding for the specified address
 350           family.</para></listitem>
 351         </varlistentry>
 352         <varlistentry>
 353           <term><varname>IPMasquerade=</varname></term>
 354           <listitem><para>Configures IP masquerading for the network
 355           interface. If enabled packets forwarded from the network
 356           interface will be appear as coming from the local host.
 357           Takes a boolean argument. Implies
 358           <varname>IPForward=yes</varname>.</para></listitem>
 359         </varlistentry>
 360         <varlistentry>
 361           <term><varname>Bridge=</varname></term>
 362           <listitem>
 363             <para>The name of the bridge to add the link to.</para>
 364           </listitem>
 365         </varlistentry>
 366         <varlistentry>
 367           <term><varname>Bond=</varname></term>
 368           <listitem>
 369             <para>The name of the bond to add the link to.</para>
 370           </listitem>
 371         </varlistentry>
 372         <varlistentry>
 373           <term><varname>VLAN=</varname></term>
 374           <listitem>
 375             <para>The name of a VLAN to create on the link. This
 376             option may be specified more than once.</para>
 377           </listitem>
 378         </varlistentry>
 379         <varlistentry>
 380           <term><varname>MACVLAN=</varname></term>
 381           <listitem>
 382             <para>The name of a MACVLAN to create on the link. This
 383             option may be specified more than once.</para>
 384           </listitem>
 385         </varlistentry>
 386         <varlistentry>
 387           <term><varname>VXLAN=</varname></term>
 388           <listitem>
 389             <para>The name of a VXLAN to create on the link. This
 390             option may be specified more than once.</para>
 391           </listitem>
 392         </varlistentry>
 393         <varlistentry>
 394           <term><varname>Tunnel=</varname></term>
 395           <listitem>
 396             <para>The name of a Tunnel to create on the link. This
 397             option may be specified more than once.</para>
 398           </listitem>
 399         </varlistentry>
 400       </variablelist>
 401
 402   </refsect1>
 403
 404   <refsect1>
 405     <title>[Address] Section Options</title>
 406
 407       <para>An <literal>[Address]</literal> section accepts the
 408       following keys. Specify several <literal>[Address]</literal>
 409       sections to configure several addresses.</para>
 410
 411       <variablelist class='network-directives'>
 412         <varlistentry>
 413           <term><varname>Address=</varname></term>
 414           <listitem>
 415             <para>As in the <literal>[Network]</literal> section. This
 416             key is mandatory.</para>
 417           </listitem>
 418         </varlistentry>
 419         <varlistentry>
 420           <term><varname>Peer=</varname></term>
 421           <listitem>
 422             <para>The peer address in a point-to-point connection.
 423             Accepts the same format as the <literal>Address</literal>
 424             key.</para>
 425           </listitem>
 426         </varlistentry>
 427         <varlistentry>
 428           <term><varname>Broadcast=</varname></term>
 429           <listitem>
 430             <para>The broadcast address, which must be in the format
 431             described in
 432             <citerefentry><refentrytitle>inet_pton</refentrytitle><manvolnum>3</manvolnum></citerefentry>.
 433             This key only applies to IPv4 addresses. If it is not
 434             given, it is derived from the <literal>Address</literal>
 435             key.</para>
 436           </listitem>
 437         </varlistentry>
 438         <varlistentry>
 439           <term><varname>Label=</varname></term>
 440           <listitem>
 441             <para>An address label.</para>
 442           </listitem>
 443         </varlistentry>
 444       </variablelist>
 445   </refsect1>
 446
 447   <refsect1>
 448     <title>[Route] Section Options</title>
 449       <para>The <literal>[Route]</literal> section accepts the
 450       following keys. Specify several <literal>[Route]</literal>
 451       sections to configure several routes.</para>
 452
 453       <variablelist class='network-directives'>
 454         <varlistentry>
 455           <term><varname>Gateway=</varname></term>
 456           <listitem>
 457             <para>As in the <literal>[Network]</literal> section.</para>
 458           </listitem>
 459         </varlistentry>
 460         <varlistentry>
 461           <term><varname>Destination=</varname></term>
 462           <listitem>
 463             <para>The destination prefix of the route. Possibly
 464             followed by a slash and the prefixlength. If omitted, a
 465             full-length host route is assumed.</para>
 466           </listitem>
 467         </varlistentry>
 468         <varlistentry>
 469           <term><varname>Source=</varname></term>
 470           <listitem>
 471             <para>The source prefix of the route. Possibly followed by
 472             a slash and the prefixlength. If omitted, a full-length
 473             host route is assumed.</para>
 474           </listitem>
 475         </varlistentry>
 476         <varlistentry>
 477           <term><varname>Metric=</varname></term>
 478           <listitem>
 479             <para>The metric of the route. An unsigned integer</para>
 480           </listitem>
 481         </varlistentry>
 482         <varlistentry>
 483           <term><varname>Scope=</varname></term>
 484           <listitem>
 485             <para>The scope of the route. One of the values <literal>global</literal>,
 486             <literal>link</literal> or <literal>host</literal>. Defaults to
 487             <literal>global</literal>.</para>
 488           </listitem>
 489         </varlistentry>
 490       </variablelist>
 491   </refsect1>
 492
 493   <refsect1>
 494     <title>[DHCP] Section Options</title>
 495       <para>The <literal>[DHCP]</literal> section accepts the following keys:</para>
 496
 497       <variablelist class='network-directives'>
 498         <varlistentry>
 499           <term><varname>UseDNS=</varname></term>
 500           <listitem>
 501             <para>When true (the default), the DNS servers received
 502             from the DHCP server will be used and take precedence over
 503             any statically configured ones.</para>
 504           </listitem>
 505         </varlistentry>
 506         <varlistentry>
 507           <term><varname>UseMTU=</varname></term>
 508           <listitem>
 509             <para>When true, the interface maximum transmission unit
 510             from the DHCP server will be used on the current link.
 511             Defaults to false.</para>
 512           </listitem>
 513         </varlistentry>
 514         <varlistentry>
 515           <term><varname>SendHostname=</varname></term>
 516           <listitem>
 517             <para>When true (the default), the machine's hostname will be sent to the DHCP
 518             server</para>
 519           </listitem>
 520         </varlistentry>
 521         <varlistentry>
 522           <term><varname>UseHostname=</varname></term>
 523           <listitem>
 524             <para>When true (the default), the hostname received from
 525             the DHCP server will be used as the transient
 526             hostname.</para>
 527           </listitem>
 528         </varlistentry>
 529         <varlistentry>
 530           <term><varname>UseDomains=</varname></term>
 531           <listitem>
 532             <para>When true (not the default), the domain name
 533             received from the DHCP server will be used for DNS
 534             resolution over this link.</para>
 535           </listitem>
 536         </varlistentry>
 537         <varlistentry>
 538           <term><varname>UseRoutes=</varname></term>
 539           <listitem>
 540             <para>When true (the default), the static routes will be
 541             requested from the DHCP server and added to the routing
 542             table with metric of 1024.</para>
 543           </listitem>
 544         </varlistentry>
 545         <varlistentry>
 546           <term><varname>CriticalConnection=</varname></term>
 547           <listitem>
 548             <para>When true, the connection will never be torn down
 549             even if the DHCP lease expires. This is contrary to the
 550             DHCP specification, but may be the best choice if, say,
 551             the root filesystem relies on this connection. Defaults to
 552             false.</para>
 553           </listitem>
 554         </varlistentry>
 555         <varlistentry>
 556           <term><varname>VendorClassIdentifier=</varname></term>
 557           <listitem>
 558             <para>The vendor class identifier used to identify vendor
 559             type and configuration.</para>
 560           </listitem>
 561         </varlistentry>
 562         <varlistentry>
 563           <term><varname>RequestBroadcast=</varname></term>
 564           <listitem>
 565             <para>Request the server to use broadcast messages before
 566             the IP address has been configured. This is necessary for
 567             devices that cannot receive RAW packets, or that cannot
 568             receive packets at all before an IP address has been
 569             configured. On the other hand, this must not be enabled on
 570             networks where broadcasts are filtered out.</para>
 571           </listitem>
 572         </varlistentry>
 573         <varlistentry>
 574           <term><varname>RouteMetric=</varname></term>
 575           <listitem>
 576             <para>Set the routing metric for routes specified by the
 577             DHCP server.</para>
 578           </listitem>
 579         </varlistentry>
 580            </variablelist>
 581
 582   </refsect1>
 583
 584   <refsect1>
 585     <title>[Bridge] Section Options</title>
 586       <para>The <literal>[Bridge]</literal> section accepts the
 587       following keys.</para>
 588       <variablelist class='network-directives'>
 589         <varlistentry>
 590           <term><varname>Cost=</varname></term>
 591           <listitem>
 592             <para>Each port in a bridge may have different speed. Cost
 593             is used to decide which link to use. Faster interfaces
 594             should have lower costs</para>
 595           </listitem>
 596         </varlistentry>
 597       </variablelist>
 598   </refsect1>
 599
 600   <refsect1>
 601     <title>[BridgeFDB] Section Options</title>
 602       <para>The <literal>[BridgeFDB]</literal> section manages the
 603       forwarding database table of a port and accepts the following
 604       keys. Specify several <literal>[BridgeFDB]</literal> sections to
 605       configure several static MAC table entries.</para>
 606
 607       <variablelist class='network-directives'>
 608         <varlistentry>
 609           <term><varname>MACAddress=</varname></term>
 610           <listitem>
 611             <para>As in the <literal>[Network]</literal> section. This
 612             key is mandatory.</para>
 613           </listitem>
 614         </varlistentry>
 615         <varlistentry>
 616           <term><varname>VLANId=</varname></term>
 617           <listitem>
 618             <para>The VLAN Id for the new static MAC table entry. If
 619             omitted, no VLAN Id info is appended to the new static MAC
 620             table entry.</para>
 621           </listitem>
 622         </varlistentry>
 623       </variablelist>
 624   </refsect1>
 625
 626   <refsect1>
 627     <title>Example</title>
 628     <example>
 629       <title>/etc/systemd/network/50-static.network</title>
 630
 631       <programlisting>[Match]
 632 Name=enp2s0
 633
 634 [Network]
 635 Address=192.168.0.15/24
 636 Gateway=192.168.0.1</programlisting>
 637     </example>
 638
 639     <example>
 640       <title>/etc/systemd/network/80-dhcp.network</title>
 641
 642       <programlisting>[Match]
 643 Name=en*
 644
 645 [Network]
 646 DHCP=both</programlisting>
 647     </example>
 648
 649     <example>
 650       <title>/etc/systemd/network/bridge-static.network</title>
 651
 652       <programlisting>[Match]
 653 Name=bridge0
 654
 655 [Network]
 656 Address=192.168.0.15/24
 657 Gateway=192.168.0.1
 658 DNS=192.168.0.1</programlisting>
 659     </example>
 660
 661     <example>
 662       <title>/etc/systemd/network/bridge-slave-interface.network</title>
 663
 664       <programlisting>[Match]
 665 Name=enp2s0
 666
 667 [Network]
 668 Bridge=bridge0</programlisting>
 669     </example>
 670     <example>
 671       <title>/etc/systemd/network/ipip.network</title>
 672
 673       <programlisting>[Match]
 674 Name=em1
 675
 676 [Network]
 677 Tunnel=ipip-tun</programlisting>
 678     </example>
 679
 680     <example>
 681       <title>/etc/systemd/network/sit.network</title>
 682
 683       <programlisting>[Match]
 684 Name=em1
 685
 686 [Network]
 687 Tunnel=sit-tun</programlisting>
 688     </example>
 689
 690     <example>
 691       <title>/etc/systemd/network/gre.network</title>
 692
 693       <programlisting>[Match]
 694 Name=em1
 695
 696 [Network]
 697 Tunnel=gre-tun</programlisting>
 698     </example>
 699
 700     <example>
 701       <title>/etc/systemd/network/vti.network</title>
 702
 703       <programlisting>[Match]
 704 Name=em1
 705
 706 [Network]
 707 Tunnel=vti-tun</programlisting>
 708     </example>
 709   </refsect1>
 710
 711   <refsect1>
 712     <title>See Also</title>
 713     <para>
 714       <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
 715       <citerefentry><refentrytitle>systemd-networkd</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
 716       <citerefentry><refentrytitle>systemd.link</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
 717       <citerefentry><refentrytitle>systemd.netdev</refentrytitle><manvolnum>5</manvolnum></citerefentry>
 718     </para>
 719   </refsect1>
 720
 721 </refentry>