man/systemd.network.xml

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   2 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
   3         "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
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   6   This file is part of systemd.
   7
   8   Copyright 2013 Tom Gundersen
   9
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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 <filename>.network</filename>;
  62                 other extensions are ignored. Networks are applied to links whenever the links
  63                 appear.</para>
  64
  65                 <para>The <filename>.network</filename> files are read from the files located in the
  66                 system network directory <filename>/usr/lib/systemd/network</filename>,
  67                 the volatile runtime network directory
  68                 <filename>/run/systemd/network</filename> and the local administration
  69                 network directory <filename>/etc/systemd/network</filename>.
  70                 All configuration files are collectively sorted and processed in lexical order,
  71                 regardless of the directories in which they live. However, files with
  72                 identical filenames replace each other. Files in
  73                 <filename>/etc</filename> have the highest priority, files in
  74                 <filename>/run</filename> take precedence over files with the same
  75                 name in <filename>/usr/lib</filename>. This can be used to override a
  76                 system-supplied configuration file with a local file if needed; a symlink in
  77                 <filename>/etc</filename> with the same name as a configuration file in
  78                 <filename>/usr/lib</filename>, pointing to <filename>/dev/null</filename>,
  79                 disables the configuration file entirely.</para>
  80
  81         </refsect1>
  82
  83         <refsect1>
  84                 <title>[Match] Section Options</title>
  85
  86                         <para>The network file contains a <literal>[Match]</literal> section,
  87                         which determines if a given network file may be applied to a given device;
  88                         and a <literal>[Network]</literal> section specifying how the device should
  89                         be configured. The first (in lexical order) of the network files that
  90                         matches a given device is applied.</para>
  91
  92                         <para>A network file is said to match a device if each of the entries in the
  93                         <literal>[Match]</literal> section matches, or if the section is empty.
  94                         The following keys are accepted:</para>
  95
  96                         <variablelist class='network-directives'>
  97                                 <varlistentry>
  98                                         <term><varname>MACAddress=</varname></term>
  99                                         <listitem>
 100                                                 <para>The hardware address.</para>
 101                                         </listitem>
 102                                 </varlistentry>
 103                                 <varlistentry>
 104                                         <term><varname>Path=</varname></term>
 105                                         <listitem>
 106                                                 <para>The persistent path, as exposed by the udev
 107                                                 property <literal>ID_PATH</literal>. May contain shell
 108                                                 style globs.</para>
 109                                         </listitem>
 110                                 </varlistentry>
 111                                 <varlistentry>
 112                                         <term><varname>Driver=</varname></term>
 113                                         <listitem>
 114                                                 <para>The driver currently bound to the device, as
 115                                                 exposed by the udev property <literal>DRIVER</literal>
 116                                                 of its parent device, or if that is not set the driver
 117                                                 as exposed by <literal>ethtool -i</literal> of the
 118                                                 device itself.</para>
 119                                         </listitem>
 120                                 </varlistentry>
 121                                 <varlistentry>
 122                                         <term><varname>Type=</varname></term>
 123                                         <listitem>
 124                                                 <para>The device type, as exposed by the udev property
 125                                                 <literal>DEVTYPE</literal>.</para>
 126                                         </listitem>
 127                                 </varlistentry>
 128                                 <varlistentry>
 129                                         <term><varname>Name=</varname></term>
 130                                         <listitem>
 131                                                 <para>The device name, as exposed by the udev property
 132                                                 <literal>INTERFACE</literal>. May contain shell style
 133                                                 globs.</para>
 134                                         </listitem>
 135                                 </varlistentry>
 136                                 <varlistentry>
 137                                         <term><varname>Host=</varname></term>
 138                                         <listitem>
 139                                                 <para>Matches against the hostname or machine ID of the
 140                                                 host. See <literal>ConditionHost=</literal> in
 141                                                 <citerefentry><refentrytitle>systemd.unit</refentrytitle><manvolnum>5</manvolnum></citerefentry>
 142                                                 for details.
 143                                                 </para>
 144                                         </listitem>
 145                                 </varlistentry>
 146                                 <varlistentry>
 147                                         <term><varname>Virtualization=</varname></term>
 148                                         <listitem>
 149                                                 <para>Checks whether the system is executed in a virtualized
 150                                                 environment and optionally test whether it is a specific
 151                                                 implementation. See <literal>ConditionVirtualization=</literal> in
 152                                                 <citerefentry><refentrytitle>systemd.unit</refentrytitle><manvolnum>5</manvolnum></citerefentry>
 153                                                 for details.
 154                                                 </para>
 155                                         </listitem>
 156                                 </varlistentry>
 157                                 <varlistentry>
 158                                         <term><varname>KernelCommandLine=</varname></term>
 159                                         <listitem>
 160                                                 <para>Checks whether a specific kernel command line option is
 161                                                 set (or if prefixed with the exclamation mark unset). See
 162                                                 <literal>ConditionKernelCommandLine=</literal> in
 163                                                 <citerefentry><refentrytitle>systemd.unit</refentrytitle><manvolnum>5</manvolnum></citerefentry>
 164                                                 for details.
 165                                                 </para>
 166                                         </listitem>
 167                                 </varlistentry>
 168                                 <varlistentry>
 169                                         <term><varname>Architecture=</varname></term>
 170                                         <listitem>
 171                                                 <para>Checks whether the system is running on a specific
 172                                                 architecture. See <literal>ConditionArchitecture=</literal> in
 173                                                 <citerefentry><refentrytitle>systemd.unit</refentrytitle><manvolnum>5</manvolnum></citerefentry>
 174                                                 for details.
 175                                                 </para>
 176                                         </listitem>
 177                                 </varlistentry>
 178                         </variablelist>
 179
 180         </refsect1>
 181
 182         <refsect1>
 183                 <title>[Link] Section Options</title>
 184
 185                 <para> The <literal>[Link]</literal> section accepts the following keys:</para>
 186
 187                 <variablelist class='network-directives'>
 188                         <varlistentry>
 189                                 <term><varname>MACAddress=</varname></term>
 190                                 <listitem>
 191                                         <para>The hardware address.</para>
 192                                 </listitem>
 193                         </varlistentry>
 194                         <varlistentry>
 195                                 <term><varname>MTUBytes=</varname></term>
 196                                 <listitem>
 197                                         <para>The maximum transmission unit in bytes to
 198                                         set for the device. The usual suffixes K, M, G,
 199                                         are supported and are understood to the base of
 200                                         1024.</para>
 201                                 </listitem>
 202                         </varlistentry>
 203                 </variablelist>
 204         </refsect1>
 205
 206         <refsect1>
 207                 <title>[Network] Section Options</title>
 208
 209                         <para>The <literal>[Network]</literal> section accepts the following keys:</para>
 210
 211                         <variablelist class='network-directives'>
 212                                 <varlistentry>
 213                                         <term><varname>Description=</varname></term>
 214                                         <listitem>
 215                                                 <para>A description of the device. This is only used for
 216                                                 presentation purposes.</para>
 217                                         </listitem>
 218                                 </varlistentry>
 219                                 <varlistentry>
 220                                         <term><varname>DHCP=</varname></term>
 221                                         <listitem>
 222                                                 <para>Enables DHCPv4 and/or DHCPv6 support. Accepts
 223                                                 <literal>yes</literal>, <literal>no</literal>,
 224                                                 <literal>ipv4</literal> or <literal>ipv6</literal>.</para>
 225                                         </listitem>
 226                                 </varlistentry>
 227                                 <varlistentry>
 228                                         <term><varname>DHCPServer=</varname></term>
 229                                         <listitem>
 230                                                 <para>A boolean. Enables a basic DHCPv4 server on the
 231                                                 device. Mostly useful for handing out leases to container
 232                                                 instances.</para>
 233                                         </listitem>
 234                                 </varlistentry>
 235                                 <varlistentry>
 236                                         <term><varname>IPv4LL=</varname></term>
 237                                         <listitem>
 238                                                 <para>A boolean. When true, enables IPv4 link-local support.
 239                                                 </para>
 240                                         </listitem>
 241                                 </varlistentry>
 242                                 <varlistentry>
 243                                         <term><varname>IPv4LLRoute=</varname></term>
 244                                         <listitem>
 245                                                 <para>A boolean. When true, sets up the route needed for
 246                                                 non-IPv4LL hosts to communicate with IPv4LL-only hosts. Defaults
 247                                                 to false.
 248                                                 </para>
 249                                         </listitem>
 250                                 </varlistentry>
 251                                 <varlistentry>
 252                                         <term><varname>LLMNR=</varname></term>
 253                                         <listitem>
 254                                                 <para>A boolean or <literal>resolve</literal>. When true, enables
 255                                                 Link-Local Multicast Name Resolution on the link, when set to
 256                                                 <literal>resolve</literal> only resolution is enabled, but not
 257                                                 announcement. Defaults to true.</para>
 258                                         </listitem>
 259                                 </varlistentry>
 260                                 <varlistentry>
 261                                         <term><varname>LLDP=</varname></term>
 262                                         <listitem>
 263                                                 <para>A boolean. When true, enables LLDP link receive support.
 264                                                 </para>
 265                                         </listitem>
 266                                 </varlistentry>
 267                                 <varlistentry>
 268                                         <term><varname>Address=</varname></term>
 269                                         <listitem>
 270                                                 <para>A static IPv4 or IPv6 address and its prefix length,
 271                                                 separated by a <literal>/</literal> character. Specify this
 272                                                 key more than once to configure several addresses.
 273                                                 The format of the address must be as described in
 274                                                 <citerefentry><refentrytitle>inet_pton</refentrytitle><manvolnum>3</manvolnum></citerefentry>.
 275                                                 This is a short-hand for an [Address] section only containing
 276                                                 an Address key (see below). This option may be specified
 277                                                 more than once.
 278                                                 </para>
 279
 280                                                 <para>If the specified
 281                                                 address is 0.0.0.0
 282                                                 (for IPv4) or [::]
 283                                                 (for IPv6), a new
 284                                                 address range of the
 285                                                 requested size is
 286                                                 automatically
 287                                                 allocated from a
 288                                                 system-wide pool of
 289                                                 unused ranges. The
 290                                                 allocated range is
 291                                                 checked against all
 292                                                 current network
 293                                                 interfaces and all
 294                                                 known network
 295                                                 configuration files to
 296                                                 avoid address range
 297                                                 conflicts. The default
 298                                                 system-wide pool
 299                                                 consists of
 300                                                 192.168.0.0/16,
 301                                                 172.16.0.0/12 and
 302                                                 10.0.0.0/8 for IPv4,
 303                                                 and fc00::/7 for
 304                                                 IPv6. This
 305                                                 functionality is
 306                                                 useful to manage a
 307                                                 large number of
 308                                                 dynamically created
 309                                                 network interfaces
 310                                                 with the same network
 311                                                 configuration and
 312                                                 automatic address
 313                                                 range
 314                                                 assignment.</para>
 315
 316                                         </listitem>
 317                                 </varlistentry>
 318                                 <varlistentry>
 319                                         <term><varname>Gateway=</varname></term>
 320                                         <listitem>
 321                                                 <para>The gateway address, which must be in the format described in
 322                                                 <citerefentry><refentrytitle>inet_pton</refentrytitle><manvolnum>3</manvolnum></citerefentry>.
 323                                                 This is a short-hand for a [Route] section only containing a Gateway
 324                                                 key. This option may be specified more than once.</para>
 325                                         </listitem>
 326                                 </varlistentry>
 327                                 <varlistentry>
 328                                         <term><varname>DNS=</varname></term>
 329                                         <listitem>
 330                                                 <para>A DNS server address, which must be in the format described in
 331                                                 <citerefentry><refentrytitle>inet_pton</refentrytitle><manvolnum>3</manvolnum></citerefentry>.
 332                                                 This option may be specified more than once.</para>
 333                                         </listitem>
 334                                 </varlistentry>
 335                                 <varlistentry>
 336                                         <term><varname>Domains=</varname></term>
 337                                         <listitem>
 338                                                 <para>The domains used for DNS resolution over this link.</para>
 339                                         </listitem>
 340                                 </varlistentry>
 341                                 <varlistentry>
 342                                         <term><varname>NTP=</varname></term>
 343                                         <listitem>
 344                                                 <para>An NTP server address. This option may be specified more than once.</para>
 345                                         </listitem>
 346                                 </varlistentry>
 347                                 <varlistentry>
 348                                         <term><varname>IPForward=</varname></term>
 349                                         <listitem><para>Configures IP
 350                                         forwarding for the network
 351                                         interface. If enabled incoming
 352                                         packets on the network
 353                                         interface will be forwarded to
 354                                         other interfaces according to
 355                                         the routing table. Takes a
 356                                         boolean
 357                                         argument.</para></listitem>
 358                                 </varlistentry>
 359                                 <varlistentry>
 360                                         <term><varname>IPMasquerade=</varname></term>
 361                                         <listitem><para>Configures IP
 362                                         masquerading for the network
 363                                         interface. If enabled packets
 364                                         forwarded from the network
 365                                         interface will be appear as
 366                                         coming from the local
 367                                         host. Takes a boolean
 368                                         argument. Implies
 369                                         <varname>IPForward=yes</varname>.</para></listitem>
 370                                 </varlistentry>
 371                                 <varlistentry>
 372                                         <term><varname>Bridge=</varname></term>
 373                                         <listitem>
 374                                                 <para>The name of the bridge to add the link to.</para>
 375                                         </listitem>
 376                                 </varlistentry>
 377                                 <varlistentry>
 378                                         <term><varname>Bond=</varname></term>
 379                                         <listitem>
 380                                                 <para>The name of the bond to add the link to.</para>
 381                                         </listitem>
 382                                 </varlistentry>
 383                                 <varlistentry>
 384                                         <term><varname>VLAN=</varname></term>
 385                                         <listitem>
 386                                                 <para>The name of a VLAN to create on the link. This option
 387                                                 may be specified more than once.</para>
 388                                         </listitem>
 389                                 </varlistentry>
 390                                 <varlistentry>
 391                                         <term><varname>MACVLAN=</varname></term>
 392                                         <listitem>
 393                                                 <para>The name of a MACVLAN to create on the link. This option
 394                                                 may be specified more than once.</para>
 395                                         </listitem>
 396                                 </varlistentry>
 397                                 <varlistentry>
 398                                         <term><varname>VXLAN=</varname></term>
 399                                         <listitem>
 400                                                 <para>The name of a VXLAN to create on the link. This option
 401                                                 may be specified more than once.</para>
 402                                         </listitem>
 403                                 </varlistentry>
 404                                 <varlistentry>
 405                                         <term><varname>Tunnel=</varname></term>
 406                                         <listitem>
 407                                                 <para>The name of a Tunnel to create on the link. This option
 408                                                 may be specified more than once.</para>
 409                                         </listitem>
 410                                 </varlistentry>
 411                         </variablelist>
 412
 413         </refsect1>
 414
 415         <refsect1>
 416                 <title>[Address] Section Options</title>
 417
 418                         <para>An <literal>[Address]</literal> section accepts the following keys.
 419                         Specify several <literal>[Address]</literal> sections to configure several
 420                         addresses.</para>
 421
 422                         <variablelist class='network-directives'>
 423                                 <varlistentry>
 424                                         <term><varname>Address=</varname></term>
 425                                         <listitem>
 426                                                 <para>As in the <literal>[Network]</literal> section. This key is mandatory.</para>
 427                                         </listitem>
 428                                 </varlistentry>
 429                                 <varlistentry>
 430                                         <term><varname>Peer=</varname></term>
 431                                         <listitem>
 432                                                 <para>The peer address in a point-to-point connection. Accepts the same format as
 433                                                 the <literal>Address</literal> key.</para>
 434                                         </listitem>
 435                                 </varlistentry>
 436                                 <varlistentry>
 437                                         <term><varname>Broadcast=</varname></term>
 438                                         <listitem>
 439                                                 <para>The broadcast address, which must be in the format described in
 440                                                 <citerefentry><refentrytitle>inet_pton</refentrytitle><manvolnum>3</manvolnum></citerefentry>.
 441                                                 This key only applies to IPv4 addresses. If it is not given, it is
 442                                                 derived from the <literal>Address</literal> key.</para>
 443                                         </listitem>
 444                                 </varlistentry>
 445                                 <varlistentry>
 446                                         <term><varname>Label=</varname></term>
 447                                         <listitem>
 448                                                 <para>An address label.</para>
 449                                         </listitem>
 450                                 </varlistentry>
 451                         </variablelist>
 452         </refsect1>
 453
 454         <refsect1>
 455                 <title>[Route] Section Options</title>
 456                         <para>The <literal>[Route]</literal> section accepts the following keys. Specify
 457                         several <literal>[Route]</literal> sections to configure several routes.</para>
 458
 459                         <variablelist class='network-directives'>
 460                                 <varlistentry>
 461                                         <term><varname>Gateway=</varname></term>
 462                                         <listitem>
 463                                                 <para>As in the <literal>[Network]</literal> section.</para>
 464                                         </listitem>
 465                                 </varlistentry>
 466                                 <varlistentry>
 467                                         <term><varname>Destination=</varname></term>
 468                                         <listitem>
 469                                                 <para>The destination prefix of the route. Possibly followed by a slash and the
 470                                                 prefixlength. If omitted, a full-length host route is assumed.</para>
 471                                         </listitem>
 472                                 </varlistentry>
 473                                 <varlistentry>
 474                                         <term><varname>Source=</varname></term>
 475                                         <listitem>
 476                                                 <para>The source prefix of the route. Possibly followed by a slash and the
 477                                                 prefixlength. If omitted, a full-length host route is assumed.</para>
 478                                         </listitem>
 479                                 </varlistentry>
 480                                 <varlistentry>
 481                                         <term><varname>Metric=</varname></term>
 482                                         <listitem>
 483                                                 <para>The metric of the route. An unsigned integer</para>
 484                                         </listitem>
 485                                 </varlistentry>
 486                         </variablelist>
 487         </refsect1>
 488
 489         <refsect1>
 490                 <title>[DHCP] Section Options</title>
 491                         <para>The <literal>[DHCP]</literal> section accepts the following keys:</para>
 492
 493                         <variablelist class='network-directives'>
 494                                 <varlistentry>
 495                                         <term><varname>UseDNS=</varname></term>
 496                                         <listitem>
 497                                                 <para>When true (the default), the DNS servers received from the DHCP server will
 498                                                 be used and take precedence over any statically configured ones.</para>
 499                                         </listitem>
 500                                 </varlistentry>
 501                                 <varlistentry>
 502                                         <term><varname>UseMTU=</varname></term>
 503                                         <listitem>
 504                                                 <para>When true, the interface maximum transmission unit from the DHCP server will
 505                                                 be used on the current link. Defaults to false.</para>
 506                                         </listitem>
 507                                 </varlistentry>
 508                                 <varlistentry>
 509                                         <term><varname>SendHostname=</varname></term>
 510                                         <listitem>
 511                                                 <para>When true (the default), the machine's hostname will be sent to the DHCP
 512                                                 server</para>
 513                                         </listitem>
 514                                 </varlistentry>
 515                                 <varlistentry>
 516                                         <term><varname>UseHostname=</varname></term>
 517                                         <listitem>
 518                                                 <para>When true (the default), the hostname received from the DHCP server
 519                                                 will be used as the transient hostname.</para>
 520                                         </listitem>
 521                                 </varlistentry>
 522                                 <varlistentry>
 523                                         <term><varname>UseDomains=</varname></term>
 524                                         <listitem>
 525                                                 <para>When true (not the default), the domain name received from the DHCP server
 526                                                 will be used for DNS resolution over this link.</para>
 527                                         </listitem>
 528                                 </varlistentry>
 529                                 <varlistentry>
 530                                         <term><varname>UseRoutes=</varname></term>
 531                                         <listitem>
 532                                                 <para>When true (the default), the static routes will be requested from the DHCP server
 533                                                 and added to the routing table with metric of 1024.</para>
 534                                         </listitem>
 535                                 </varlistentry>
 536                                 <varlistentry>
 537                                         <term><varname>CriticalConnection=</varname></term>
 538                                         <listitem>
 539                                                 <para>When true, the connection will never be torn down even if the DHCP lease
 540                                                 expires. This is contrary to the DHCP specification, but may be the best choice
 541                                                 if, say, the root filesystem relies on this connection. Defaults to false.</para>
 542                                         </listitem>
 543                                 </varlistentry>
 544                                 <varlistentry>
 545                                         <term><varname>VendorClassIdentifier=</varname></term>
 546                                         <listitem>
 547                                                 <para>The vendor class identifier used to identify vendor type and configuration.</para>
 548                                         </listitem>
 549                                 </varlistentry>
 550                                 <varlistentry>
 551                                         <term><varname>RequestBroadcast=</varname></term>
 552                                         <listitem>
 553                                                 <para>Request the server to use broadcast messages before the IP address has been
 554                                                 configured. This is necessary for devices that cannot receive RAW packets, or that
 555                                                 cannot receive packets at all before an IP address has been configured. On the other
 556                                                 hand, this must not be enabled on networks where broadcasts are filtered out.</para>
 557                                         </listitem>
 558                                 </varlistentry>
 559                                 <varlistentry>
 560                                         <term><varname>RouteMetric=</varname></term>
 561                                         <listitem>
 562                                                 <para>Set the routing metric for routes specified by the DHCP server.</para>
 563                                         </listitem>
 564                                 </varlistentry>
 565                        </variablelist>
 566
 567         </refsect1>
 568
 569         <refsect1>
 570                 <title>[Bridge] Section Options</title>
 571                         <para>The <literal>[Bridge]</literal> section accepts the following keys.</para>
 572                         <variablelist class='network-directives'>
 573                                 <varlistentry>
 574                                         <term><varname>Cost=</varname></term>
 575                                         <listitem>
 576                                           <para>Each port in a bridge may have different speed. Cost is used to decide which link to use. Faster interfaces should have lower costs</para>
 577                                         </listitem>
 578                                 </varlistentry>
 579                         </variablelist>
 580         </refsect1>
 581
 582         <refsect1>
 583                 <title>[BridgeFDB] Section Options</title>
 584                         <para>The <literal>[BridgeFDB]</literal> section manages the forwarding database table of a port and accepts the following keys. Specify
 585                         several <literal>[BridgeFDB]</literal> sections to configure several static MAC table entries.</para>
 586
 587                         <variablelist class='network-directives'>
 588                                 <varlistentry>
 589                                         <term><varname>MACAddress=</varname></term>
 590                                         <listitem>
 591                                                 <para>As in the <literal>[Network]</literal> section. This key is mandatory.</para>
 592                                         </listitem>
 593                                 </varlistentry>
 594                                 <varlistentry>
 595                                         <term><varname>VLANId=</varname></term>
 596                                         <listitem>
 597                                                 <para>The VLAN Id for the new static MAC table entry.
 598                                                 If omitted, no VLAN Id info is appended to the new static MAC table entry.</para>
 599                                         </listitem>
 600                                 </varlistentry>
 601                         </variablelist>
 602         </refsect1>
 603
 604         <refsect1>
 605                 <title>Example</title>
 606                 <example>
 607                         <title>/etc/systemd/network/50-static.network</title>
 608
 609                         <programlisting>[Match]
 610 Name=enp2s0
 611
 612 [Network]
 613 Address=192.168.0.15/24
 614 Gateway=192.168.0.1</programlisting>
 615                 </example>
 616
 617                 <example>
 618                         <title>/etc/systemd/network/80-dhcp.network</title>
 619
 620                         <programlisting>[Match]
 621 Name=en*
 622
 623 [Network]
 624 DHCP=both</programlisting>
 625                 </example>
 626
 627                 <example>
 628                         <title>/etc/systemd/network/bridge-static.network</title>
 629
 630                         <programlisting>[Match]
 631 Name=bridge0
 632
 633 [Network]
 634 Address=192.168.0.15/24
 635 Gateway=192.168.0.1
 636 DNS=192.168.0.1</programlisting>
 637                 </example>
 638
 639                 <example>
 640                         <title>/etc/systemd/network/bridge-slave-interface.network</title>
 641
 642                         <programlisting>[Match]
 643 Name=enp2s0
 644
 645 [Network]
 646 Bridge=bridge0</programlisting>
 647                 </example>
 648                 <example>
 649                         <title>/etc/systemd/network/ipip.network</title>
 650
 651                         <programlisting>[Match]
 652 Name=em1
 653
 654 [Network]
 655 Tunnel=ipip-tun</programlisting>
 656                 </example>
 657
 658                 <example>
 659                         <title>/etc/systemd/network/sit.network</title>
 660
 661                         <programlisting>[Match]
 662 Name=em1
 663
 664 [Network]
 665 Tunnel=sit-tun</programlisting>
 666                 </example>
 667
 668                 <example>
 669                         <title>/etc/systemd/network/gre.network</title>
 670
 671                         <programlisting>[Match]
 672 Name=em1
 673
 674 [Network]
 675 Tunnel=gre-tun</programlisting>
 676                 </example>
 677
 678                 <example>
 679                         <title>/etc/systemd/network/vti.network</title>
 680
 681                         <programlisting>[Match]
 682 Name=em1
 683
 684 [Network]
 685 Tunnel=vti-tun</programlisting>
 686                 </example>
 687         </refsect1>
 688
 689         <refsect1>
 690                 <title>See Also</title>
 691                 <para>
 692                         <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
 693                         <citerefentry><refentrytitle>systemd-networkd</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
 694                         <citerefentry><refentrytitle>systemd.link</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
 695                         <citerefentry><refentrytitle>systemd.netdev</refentrytitle><manvolnum>5</manvolnum></citerefentry>
 696                 </para>
 697         </refsect1>
 698
 699 </refentry>