man/systemd.netdev.xml

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   2 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
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   8   Copyright 2013 Tom Gundersen
   9
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  23
  24 <refentry id="systemd.netdev" 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.netdev</refentrytitle>
  42                 <manvolnum>5</manvolnum>
  43         </refmeta>
  44
  45         <refnamediv>
  46                 <refname>systemd.netdev</refname>
  47                 <refpurpose>Virtual Network Device configuration</refpurpose>
  48         </refnamediv>
  49
  50         <refsynopsisdiv>
  51                 <para><filename><replaceable>netdev</replaceable>.netdev</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>Virtual Network Device files must have the extension
  62                 <filename>.netdev</filename>; other extensions are ignored. Virtual
  63                 network devices are created as soon as networkd is started. If a netdev
  64                 with the specified name already exists, networkd will use that as-is
  65                 rather than create its own. Note that the settings of the pre-existing
  66                 netdev will not be changed by networkd.</para>
  67
  68                 <para>The <filename>.netdev</filename> files are read from the files located in the
  69                 system network directory <filename>/usr/lib/systemd/network</filename>,
  70                 the volatile runtime network directory
  71                 <filename>/run/systemd/network</filename> and the local administration
  72                 network directory <filename>/etc/systemd/network</filename>.
  73                 All configuration files are collectively sorted and processed in lexical order,
  74                 regardless of the directories in which they live. However, files with
  75                 identical filenames replace each other. Files in
  76                 <filename>/etc</filename> have the highest priority, files in
  77                 <filename>/run</filename> take precedence over files with the same
  78                 name in <filename>/usr/lib</filename>. This can be used to override a
  79                 system-supplied configuration file with a local file if needed; a symlink in
  80                 <filename>/etc</filename> with the same name as a configuration file in
  81                 <filename>/usr/lib</filename>, pointing to <filename>/dev/null</filename>,
  82                 disables the configuration file entirely.</para>
  83
  84         </refsect1>
  85
  86         <refsect1>
  87                 <title>[Match] Section Options</title>
  88
  89                 <para>A virtual network device is only created if the
  90                 <literal>[Match]</literal> section matches the current
  91                 environment, or if the section is empty. The following keys are accepted:</para>
  92
  93                         <variablelist class='network-directives'>
  94                                 <varlistentry>
  95                                         <term><varname>Host=</varname></term>
  96                                         <listitem>
  97                                                 <para>Matches against the hostname or machine ID of the
  98                                                 host. See <literal>ConditionHost=</literal> in
  99                                                 <citerefentry><refentrytitle>systemd.unit</refentrytitle><manvolnum>5</manvolnum></citerefentry>
 100                                                 for details.
 101                                                 </para>
 102                                         </listitem>
 103                                 </varlistentry>
 104                                 <varlistentry>
 105                                         <term><varname>Virtualization=</varname></term>
 106                                         <listitem>
 107                                                 <para>Checks whether the system is executed in a virtualized
 108                                                 environment and optionally test whether it is a specific
 109                                                 implementation. See <literal>ConditionVirtualization=</literal> in
 110                                                 <citerefentry><refentrytitle>systemd.unit</refentrytitle><manvolnum>5</manvolnum></citerefentry>
 111                                                 for details.
 112                                                 </para>
 113                                         </listitem>
 114                                 </varlistentry>
 115                                 <varlistentry>
 116                                         <term><varname>KernelCommandLine=</varname></term>
 117                                         <listitem>
 118                                                 <para>Checks whether a specific kernel command line option is
 119                                                 set (or if prefixed with the exclamation mark unset). See
 120                                                 <literal>ConditionKernelCommandLine=</literal> in
 121                                                 <citerefentry><refentrytitle>systemd.unit</refentrytitle><manvolnum>5</manvolnum></citerefentry>
 122                                                 for details.
 123                                                 </para>
 124                                         </listitem>
 125                                 </varlistentry>
 126                                 <varlistentry>
 127                                         <term><varname>Architecture=</varname></term>
 128                                         <listitem>
 129                                                 <para>Checks whether the system is running on a specific
 130                                                 architecture. See <literal>ConditionArchitecture=</literal> in
 131                                                 <citerefentry><refentrytitle>systemd.unit</refentrytitle><manvolnum>5</manvolnum></citerefentry>
 132                                                 for details.
 133                                                 </para>
 134                                         </listitem>
 135                                 </varlistentry>
 136                         </variablelist>
 137
 138         </refsect1>
 139
 140         <refsect1>
 141                 <title>[NetDev] Section Options</title>
 142
 143                         <para>The <literal>[NetDev]</literal> section accepts the following
 144                         keys:</para>
 145
 146                         <variablelist class='network-directives'>
 147                                 <varlistentry>
 148                                         <term><varname>Description=</varname></term>
 149                                         <listitem>
 150                                                 <para>A free-form description of the netdev.
 151                                                 </para>
 152                                         </listitem>
 153                                 </varlistentry>
 154                                 <varlistentry>
 155                                         <term><varname>Name=</varname></term>
 156                                         <listitem>
 157                                                 <para>The interface name used when creating the
 158                                                 netdev. This option is compulsory.</para>
 159                                         </listitem>
 160                                 </varlistentry>
 161                                 <varlistentry>
 162                                         <term><varname>Kind=</varname></term>
 163                                         <listitem>
 164                                                 <para>The netdev kind. Currently, <literal>bridge</literal>,
 165                                                 <literal>bond</literal>, <literal>vlan</literal>,
 166                                                 <literal>macvlan</literal>,
 167                                                 <literal>ipvlan</literal>, <literal>vxlan</literal>,
 168                                                 <literal>ipip</literal>, <literal>gre</literal>,
 169                                                 <literal>gretap</literal>, <literal>sit</literal>,
 170                                                 <literal>vti</literal>, <literal>veth</literal>,
 171                                                 <literal>tun</literal>, <literal>tap</literal> and
 172                                                 <literal>dummy</literal>
 173                                                 are supported. This option is compulsory.</para>
 174                                         </listitem>
 175                                 </varlistentry>
 176                                 <varlistentry>
 177                                         <term><varname>MTUBytes=</varname></term>
 178                                         <listitem>
 179                                                 <para>The maximum transmission unit in bytes to
 180                                                 set for the device. The usual suffixes K, M, G,
 181                                                 are supported and are understood to the base of
 182                                                 1024. This key is not currently suported for
 183                                                 <literal>tun</literal> or <literal>tap</literal> devices.
 184                                                 </para>
 185                                         </listitem>
 186                                 </varlistentry>
 187                                 <varlistentry>
 188                                         <term><varname>MACAddress=</varname></term>
 189                                         <listitem>
 190                                                 <para>The MAC address to use for the device.
 191                                                 If none is given, one is generated based on
 192                                                 the interface name and the
 193                                                 <citerefentry><refentrytitle>machine-id</refentrytitle><manvolnum>5</manvolnum></citerefentry>.
 194                                                 This key is not currently suported for <literal>tun</literal> or <literal>tap</literal> devices.
 195                                                 </para>
 196                                         </listitem>
 197                                 </varlistentry>
 198                         </variablelist>
 199         </refsect1>
 200
 201         <refsect1>
 202                 <title>[VLAN] Section Options</title>
 203
 204                         <para>The <literal>[VLAN]</literal> section only applies for netdevs of kind <literal>vlan</literal>,
 205                         and accepts the following key:</para>
 206
 207                         <variablelist class='network-directives'>
 208                                 <varlistentry>
 209                                         <term><varname>Id=</varname></term>
 210                                         <listitem>
 211                                                 <para>The VLAN ID to use. An integer in the range 0–4094.
 212                                                 This option is compulsory.</para>
 213                                         </listitem>
 214                                 </varlistentry>
 215                         </variablelist>
 216
 217         </refsect1>
 218
 219         <refsect1>
 220                 <title>[MACVLAN] Section Options</title>
 221
 222                         <para>The <literal>[MACVLAN]</literal> section only applies for netdevs of kind
 223                         <literal>macvlan</literal>, and accepts the following key:</para>
 224
 225                         <variablelist class='network-directives'>
 226                                 <varlistentry>
 227                                         <term><varname>Mode=</varname></term>
 228                                         <listitem>
 229                                                 <para>The MACVLAN mode to use. The supported options are
 230                                                 <literal>private</literal>, <literal>vepa</literal>,
 231                                                 <literal>bridge</literal> and <literal>passthru</literal>.
 232                                                 </para>
 233                                         </listitem>
 234                                 </varlistentry>
 235                         </variablelist>
 236
 237         </refsect1>
 238
 239         <refsect1>
 240                 <title>[IPVLAN] Section Options</title>
 241
 242                         <para>The <literal>[IPVLAN]</literal> section only applies for netdevs of kind
 243                         <literal>ipvlan</literal>, and accepts the following key:</para>
 244
 245                         <variablelist class='network-directives'>
 246                                 <varlistentry>
 247                                         <term><varname>Mode=</varname></term>
 248                                         <listitem>
 249                                                 <para>The IPVLAN mode to use. The supported options are
 250                                                 <literal>L2</literal> and <literal>L3</literal>.
 251                                                 </para>
 252                                         </listitem>
 253                                 </varlistentry>
 254                         </variablelist>
 255
 256         </refsect1>
 257
 258         <refsect1>
 259                 <title>[VXLAN] Section Options</title>
 260                         <para>The <literal>[VXLAN]</literal> section only applies for netdevs of kind
 261                         <literal>vxlan</literal>, and accepts the following key:</para>
 262
 263                         <variablelist class='network-directives'>
 264                                 <varlistentry>
 265                                         <term><varname>Id=</varname></term>
 266                                         <listitem>
 267                                                 <para>The VXLAN ID to use.</para>
 268                                         </listitem>
 269                                 </varlistentry>
 270                                 <varlistentry>
 271                                         <term><varname>Group=</varname></term>
 272                                         <listitem>
 273                                                 <para>An assigned multicast group IP address.</para>
 274                                         </listitem>
 275                                 </varlistentry>
 276                                 <varlistentry>
 277                                         <term><varname>TOS=</varname></term>
 278                                         <listitem>
 279                                                 <para>The Type Of Service byte value for a vxlan interface.</para>
 280                                         </listitem>
 281                                 </varlistentry>
 282                                 <varlistentry>
 283                                         <term><varname>TTL=</varname></term>
 284                                         <listitem>
 285                                                 <para>A fixed Time To Live N on Virtual eXtensible Local Area Network packets.
 286                                                 N is a number in the range 1-255. 0 is a special value meaning that packets
 287                                                 inherit the TTL value.</para>
 288                                         </listitem>
 289                                 </varlistentry>
 290                                 <varlistentry>
 291                                         <term><varname>MacLearning=</varname></term>
 292                                         <listitem>
 293                                                 <para>A boolean. When true, enables dynamic MAC learning
 294                                                 to discover remote MAC addresses.</para>
 295                                         </listitem>
 296                                 </varlistentry>
 297                                 <varlistentry>
 298                                         <term><varname>FDBAgeingSec=</varname></term>
 299                                         <listitem>
 300                                                 <para>The lifetime of Forwarding Database entry learnt by the kernel in seconds.</para>
 301                                         </listitem>
 302                                 </varlistentry>
 303                                 <varlistentry>
 304                                         <term><varname>ARPProxy=</varname></term>
 305                                         <listitem>
 306                                                 <para>A boolean. When true, enables ARP proxy.</para>
 307                                         </listitem>
 308                                 </varlistentry>
 309                                 <varlistentry>
 310                                         <term><varname>L2MissNotification=</varname></term>
 311                                         <listitem>
 312                                                 <para>A boolean. When true, enables netlink LLADDR miss notifications.</para>
 313                                         </listitem>
 314                                 </varlistentry>
 315                                 <varlistentry>
 316                                         <term><varname>L3MissNotification=</varname></term>
 317                                         <listitem>
 318                                                 <para>A boolean. When true, enables netlink IP ADDR miss notifications.</para>
 319                                         </listitem>
 320                                 </varlistentry>
 321                                 <varlistentry>
 322                                         <term><varname>RouteShortCircuit=</varname></term>
 323                                         <listitem>
 324                                                 <para>A boolean. When true route short circuit is turned on.</para>
 325                                         </listitem>
 326                                 </varlistentry>
 327                         </variablelist>
 328         </refsect1>
 329         <refsect1>
 330                 <title>[Tunnel] Section Options</title>
 331
 332                         <para>The <literal>[Tunnel]</literal> section only applies for netdevs of kind
 333                         <literal>ipip</literal>, <literal>sit</literal>, <literal>gre</literal>, <literal>gretap</literal>,
 334                         <literal>ip6gre</literal>, <literal>ip6gretap</literal>, <literal>vti</literal> and <literal>ip6tnl</literal>
 335                         and accepts the following keys:</para>
 336
 337                         <variablelist class='network-directives'>
 338                                 <varlistentry>
 339                                         <term><varname>Local=</varname></term>
 340                                         <listitem>
 341                                                 <para>A static local address for tunneled packets.
 342                                                 It must be an address on another interface of this host.</para>
 343                                         </listitem>
 344                                 </varlistentry>
 345                                 <varlistentry>
 346                                         <term><varname>Remote=</varname></term>
 347                                         <listitem>
 348                                                 <para>The remote endpoint of the tunnel.</para>
 349                                         </listitem>
 350                                 </varlistentry>
 351                                 <varlistentry>
 352                                         <term><varname>TOS=</varname></term>
 353                                         <listitem>
 354                                                 <para>The Type Of Service byte value for a tunnel interface.
 355                                                 For details about the TOS see the
 356                                                 <ulink url="http://tools.ietf.org/html/rfc1349">
 357                                                 Type of Service in the Internet Protocol Suite
 358                                                 </ulink> document.
 359                                                 </para>
 360                                         </listitem>
 361                                 </varlistentry>
 362                                 <varlistentry>
 363                                         <term><varname>TTL=</varname></term>
 364                                         <listitem>
 365                                                 <para>A fixed Time To Live N on tunneled packets.
 366                                                 N is a number in the range 1-255. 0 is a special value meaning that packets
 367                                                 inherit the TTL value. The default value for IPv4 tunnels is: inherit.
 368                                                 The default value for IPv6 tunnels is: 64.</para>
 369                                         </listitem>
 370                                 </varlistentry>
 371                                 <varlistentry>
 372                                         <term><varname>DiscoverPathMTU=</varname></term>
 373                                         <listitem>
 374                                                 <para>A boolean. When true, enables Path MTU Discovery on the tunnel.</para>
 375                                         </listitem>
 376                                 </varlistentry>
 377                                 <varlistentry>
 378                                   <term><varname>Mode=</varname></term>
 379                                   <listitem>
 380                                     <para>IPv6 tunnels can have three modes:
 381                                     <literal>ip6ip6</literal>,
 382                                     <literal>ip4ipv6</literal>,
 383                                     <literal>any</literal>
 384                                     </para>
 385                                   </listitem>
 386                                 </varlistentry>
 387
 388                                    <varlistentry>
 389                                         <term><varname>Mode=</varname></term>
 390                                         <listitem>
 391                                                 <para>The mode specifies the ip6 tunnel protocol. Supported type are </para>
 392                                         </listitem>
 393                                 </varlistentry>
 394                         </variablelist>
 395         </refsect1>
 396         <refsect1>
 397                 <title>[Peer] Section Options</title>
 398
 399                         <para>The <literal>[Peer]</literal> section only applies for netdevs of kind <literal>veth</literal>
 400                         and accepts the following key:</para>
 401
 402                         <variablelist class='network-directives'>
 403                                 <varlistentry>
 404                                         <term><varname>Name=</varname></term>
 405                                         <listitem>
 406                                                 <para>The interface name used when creating the netdev.
 407                                                 This option is compulsory.</para>
 408                                         </listitem>
 409                                 </varlistentry>
 410                                 <varlistentry>
 411                                         <term><varname>MACAddress=</varname></term>
 412                                         <listitem>
 413                                                 <para>The peer MACAddress, if not set it is generated in the same
 414                                                 way as the MAC address of the main interface.</para>
 415                                         </listitem>
 416                                 </varlistentry>
 417                         </variablelist>
 418         </refsect1>
 419         <refsect1>
 420                 <title>[Tun] Section Options</title>
 421
 422                         <para>The <literal>[Tun]</literal> section only applies for netdevs of kind
 423                         <literal>tun</literal>, and accepts the following keys:</para>
 424
 425                         <variablelist class='network-directives'>
 426                                 <varlistentry>
 427                                         <term><varname>OneQueue=</varname></term>
 428                                         <listitem><para>Takes a boolean argument. Configures whether
 429                                         all packets are queued at the device (enabled), or a fixed number
 430                                         of packets are queued at the device and the rest at the
 431                                         <literal>qdisc</literal>. Defaults to <literal>no</literal>.</para>
 432                                         </listitem>
 433                                 </varlistentry>
 434                                 <varlistentry>
 435                                         <term><varname>MultiQueue=</varname></term>
 436                                         <listitem><para>Takes a boolean argument. Configures whether to
 437                                         use multiple file descriptors (queues) to parallelize packets
 438                                         sending and receiving. Defaults to <literal>no</literal>.</para>
 439                                         </listitem>
 440                                 </varlistentry>
 441                                 <varlistentry>
 442                                         <term><varname>PacketInfo=</varname></term>
 443                                         <listitem><para>Takes a boolean argument. Configures whether packets
 444                                         should be prepened with four extra bytes (two flag bytes and two
 445                                         protocol bytes). If disabled it indicates that the packets will be
 446                                         pure IP packets. Defaults to <literal>no</literal>.</para>
 447                                         </listitem>
 448                                 </varlistentry>
 449                                 <varlistentry>
 450                                         <term><varname>User=</varname></term>
 451                                         <listitem><para>User to grant access to the <filename>/dev/net/tun</filename>
 452                                         device.</para>
 453                                         </listitem>
 454                                 </varlistentry>
 455                                 <varlistentry>
 456                                         <term><varname>Group=</varname></term>
 457                                         <listitem><para>Group to grant access to the <filename>/dev/net/tun</filename>
 458                                         device.</para>
 459                                         </listitem>
 460                                 </varlistentry>
 461
 462                         </variablelist>
 463
 464         </refsect1>
 465
 466         <refsect1>
 467                 <title>[Tap] Section Options</title>
 468
 469                         <para>The <literal>[Tap]</literal> section only applies for netdevs of kind
 470                         <literal>tap</literal>, and accepts the same keys as the
 471                         <literal>[Tun]</literal> section.</para>
 472         </refsect1>
 473
 474         <refsect1>
 475                 <title>[Bond] Section Options</title>
 476
 477                         <para>The <literal>[Bond]</literal> section accepts the following
 478                         key:</para>
 479
 480                         <variablelist class='network-directives'>
 481                                 <varlistentry>
 482                                         <term><varname>Mode=</varname></term>
 483                                         <listitem>
 484                                           <para>Specifies one of the bonding policies. The default is
 485                                           <literal>balance-rr</literal> (round robin). Possible values are
 486                                                 <literal>balance-rr</literal>,
 487                                                 <literal>active-backup</literal>,
 488                                                 <literal>balance-xor</literal>,
 489                                                 <literal>broadcast</literal>,
 490                                                 <literal>802.3ad</literal>,
 491                                                 <literal>balance-tlb</literal>, and
 492                                                 <literal>balance-alb</literal>.
 493                                           </para>
 494                                         </listitem>
 495                                 </varlistentry>
 496
 497                                 <varlistentry>
 498                                   <term><varname>TransmitHashPolicy=</varname></term>
 499                                   <listitem>
 500                                     <para>Selects the transmit hash policy to use for slave selection in
 501                                     balance-xor, 802.3ad, and tlb modes. Possible values are
 502                                     <literal>layer2</literal>,
 503                                     <literal>layer3+4</literal>,
 504                                     <literal>layer2+3</literal>,
 505                                     <literal>encap2+3</literal>,
 506                                     <literal>802.3ad</literal>, and
 507                                     <literal>encap3+4</literal>.
 508                                     </para>
 509                                   </listitem>
 510                                 </varlistentry>
 511
 512                                 <varlistentry>
 513                                   <term><varname>LACPTransmitRate=</varname></term>
 514                                   <listitem>
 515                                     <para>Specifies the rate with which link partner
 516                                     transmits Link Aggregation Control Protocol Data Unit packets
 517                                     in 802.3ad mode. Possible values are
 518                                     <literal>slow</literal>, which requests partner to transmit LACPDUs every 30 seconds, and
 519                                     <literal>fast</literal>, which requests partner to transmit LACPDUs every second.
 520                                     The default value is <literal>slow</literal>.</para>
 521                                   </listitem>
 522                                 </varlistentry>
 523
 524                                 <varlistentry>
 525                                   <term><varname>MIIMonitorSec=</varname></term>
 526                                   <listitem>
 527                                     <para>Specifies the frequency that Media Independent Interface link
 528                                     monitoring will occur. A value of zero disables MII link monitoring.
 529                                     This values is rounded down to the nearest millisecond. The default
 530                                     value is 0.</para>
 531                                   </listitem>
 532                                 </varlistentry>
 533
 534                                 <varlistentry>
 535                                   <term><varname>UpDelaySec=</varname></term>
 536                                   <listitem>
 537                                     <para>Specifies the delay before a link is enabled after a link up
 538                                     status has been detected. This value is rounded down to a multiple of
 539                                     MIIMonitorSec. The default value is 0.</para>
 540                                   </listitem>
 541                                 </varlistentry>
 542
 543                                 <varlistentry>
 544                                   <term><varname>DownDelaySec=</varname></term>
 545                                   <listitem>
 546                                     <para>Specifies the delay before a link is disabled after a link down
 547                                     status has been detected. This value is rounded down to a multiple of
 548                                     MIIMonitorSec. The default value is 0.</para>
 549                                   </listitem>
 550                                 </varlistentry>
 551
 552                         </variablelist>
 553         </refsect1>
 554
 555         <refsect1>
 556                 <title>Example</title>
 557                 <example>
 558                         <title>/etc/systemd/network/bridge.netdev</title>
 559
 560                         <programlisting>[NetDev]
 561 Name=bridge0
 562 Kind=bridge</programlisting>
 563                 </example>
 564
 565                 <example>
 566                         <title>/etc/systemd/network/vlan1.netdev</title>
 567
 568                         <programlisting>[Match]
 569 Virtualization=no
 570
 571 [NetDev]
 572 Name=vlan1
 573 Kind=vlan
 574
 575 [VLAN]
 576 Id=1</programlisting>
 577                 </example>
 578                 <example>
 579                         <title>/etc/systemd/network/ipip.netdev</title>
 580                         <programlisting>[NetDev]
 581 Name=ipip-tun
 582 Kind=ipip
 583 MTUBytes=1480
 584
 585 [Tunnel]
 586 Local=192.168.223.238
 587 Remote=192.169.224.239
 588 TTL=64</programlisting>
 589                 </example>
 590                 <example>
 591                   <title>/etc/systemd/network/tap.netdev</title>
 592                   <programlisting>[NetDev]
 593 Name=tap-test
 594 Kind=tap
 595
 596 [Tap]
 597 MultiQueue=true
 598 PacketInfo=true</programlisting> </example>
 599
 600                 <example>
 601                         <title>/etc/systemd/network/sit.netdev</title>
 602                         <programlisting>[NetDev]
 603 Name=sit-tun
 604 Kind=sit
 605 MTUBytes=1480
 606
 607 [Tunnel]
 608 Local=10.65.223.238
 609 Remote=10.65.223.239</programlisting>
 610                 </example>
 611
 612                 <example>
 613                         <title>/etc/systemd/network/gre.netdev</title>
 614                         <programlisting>[NetDev]
 615 Name=gre-tun
 616 Kind=gre
 617 MTUBytes=1480
 618
 619 [Tunnel]
 620 Local=10.65.223.238
 621 Remote=10.65.223.239</programlisting>
 622                 </example>
 623
 624                 <example>
 625                         <title>/etc/systemd/network/vti.netdev</title>
 626
 627                         <programlisting>[NetDev]
 628 Name=vti-tun
 629 Kind=vti
 630 MTUBytes=1480
 631
 632 [Tunnel]
 633 Local=10.65.223.238
 634 Remote=10.65.223.239</programlisting>
 635                 </example>
 636
 637                 <example>
 638                         <title>/etc/systemd/network/veth.netdev</title>
 639                         <programlisting>[NetDev]
 640 Name=veth-test
 641 Kind=veth
 642
 643 [Peer]
 644 Name=veth-peer</programlisting>
 645                 </example>
 646
 647                 <example>
 648                         <title>/etc/systemd/network/dummy.netdev</title>
 649                         <programlisting>[NetDev]
 650 Name=dummy-test
 651 Kind=dummy
 652 MACAddress=12:34:56:78:9a:bc</programlisting>
 653                 </example>
 654
 655         </refsect1>
 656         <refsect1>
 657                 <title>See Also</title>
 658                 <para>
 659                         <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
 660                         <citerefentry><refentrytitle>systemd-networkd</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
 661                         <citerefentry><refentrytitle>systemd.link</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
 662                         <citerefentry><refentrytitle>systemd.network</refentrytitle><manvolnum>5</manvolnum></citerefentry>
 663                 </para>
 664         </refsect1>
 665
 666 </refentry>