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1 | <?xml version='1.0'?> <!--*-nxml-*--> | |
2 | <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" | |
3 | "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"> | |
4 | ||
5 | <!-- | |
6 | SPDX-License-Identifier: LGPL-2.1+ | |
7 | --> | |
8 | ||
9 | <refentry id="systemd.netdev" conditional='ENABLE_NETWORKD'> | |
10 | ||
11 | <refentryinfo> | |
12 | <title>systemd.network</title> | |
13 | <productname>systemd</productname> | |
14 | </refentryinfo> | |
15 | ||
16 | <refmeta> | |
17 | <refentrytitle>systemd.netdev</refentrytitle> | |
18 | <manvolnum>5</manvolnum> | |
19 | </refmeta> | |
20 | ||
21 | <refnamediv> | |
22 | <refname>systemd.netdev</refname> | |
23 | <refpurpose>Virtual Network Device configuration</refpurpose> | |
24 | </refnamediv> | |
25 | ||
26 | <refsynopsisdiv> | |
27 | <para><filename><replaceable>netdev</replaceable>.netdev</filename></para> | |
28 | </refsynopsisdiv> | |
29 | ||
30 | <refsect1> | |
31 | <title>Description</title> | |
32 | ||
33 | <para>Network setup is performed by | |
34 | <citerefentry><refentrytitle>systemd-networkd</refentrytitle><manvolnum>8</manvolnum></citerefentry>. | |
35 | </para> | |
36 | ||
37 | <para>The main Virtual Network Device file must have the extension <filename>.netdev</filename>; | |
38 | other extensions are ignored. Virtual network devices are created as soon as networkd is | |
39 | started. If a netdev with the specified name already exists, networkd will use that as-is rather | |
40 | than create its own. Note that the settings of the pre-existing netdev will not be changed by | |
41 | networkd.</para> | |
42 | ||
43 | <para>The <filename>.netdev</filename> files are read from the files located in the system | |
44 | network directory <filename>/usr/lib/systemd/network</filename>, the volatile runtime network | |
45 | directory <filename>/run/systemd/network</filename> and the local administration network | |
46 | directory <filename>/etc/systemd/network</filename>. All configuration files are collectively | |
47 | sorted and processed in lexical order, regardless of the directories in which they live. | |
48 | However, files with identical filenames replace each other. Files in <filename>/etc</filename> | |
49 | have the highest priority, files in <filename>/run</filename> take precedence over files with | |
50 | the same name in <filename>/usr/lib</filename>. This can be used to override a system-supplied | |
51 | configuration file with a local file if needed. As a special case, an empty file (file size 0) | |
52 | or symlink with the same name pointing to <filename>/dev/null</filename> disables the | |
53 | configuration file entirely (it is "masked").</para> | |
54 | ||
55 | <para>Along with the netdev file <filename>foo.netdev</filename>, a "drop-in" directory | |
56 | <filename>foo.netdev.d/</filename> may exist. All files with the suffix <literal>.conf</literal> | |
57 | from this directory will be parsed after the file itself is parsed. This is useful to alter or | |
58 | add configuration settings, without having to modify the main configuration file. Each drop-in | |
59 | file must have appropriate section headers.</para> | |
60 | ||
61 | <para>In addition to <filename>/etc/systemd/network</filename>, drop-in <literal>.d</literal> | |
62 | directories can be placed in <filename>/usr/lib/systemd/network</filename> or | |
63 | <filename>/run/systemd/network</filename> directories. Drop-in files in | |
64 | <filename>/etc</filename> take precedence over those in <filename>/run</filename> which in turn | |
65 | take precedence over those in <filename>/usr/lib</filename>. Drop-in files under any of these | |
66 | directories take precedence over the main netdev file wherever located. (Of course, since | |
67 | <filename>/run</filename> is temporary and <filename>/usr/lib</filename> is for vendors, it is | |
68 | unlikely drop-ins should be used in either of those places.)</para> | |
69 | </refsect1> | |
70 | ||
71 | <refsect1> | |
72 | <title>Supported netdev kinds</title> | |
73 | ||
74 | <para>The following kinds of virtual network devices may be | |
75 | configured in <filename>.netdev</filename> files:</para> | |
76 | ||
77 | <table> | |
78 | <title>Supported kinds of virtual network devices</title> | |
79 | ||
80 | <tgroup cols='2'> | |
81 | <colspec colname='kind' /> | |
82 | <colspec colname='explanation' /> | |
83 | <thead><row> | |
84 | <entry>Kind</entry> | |
85 | <entry>Description</entry> | |
86 | </row></thead> | |
87 | <tbody> | |
88 | <row><entry><varname>bond</varname></entry> | |
89 | <entry>A bond device is an aggregation of all its slave devices. See <ulink url="https://www.kernel.org/doc/Documentation/networking/bonding.txt">Linux Ethernet Bonding Driver HOWTO</ulink> for details.Local configuration</entry></row> | |
90 | ||
91 | <row><entry><varname>bridge</varname></entry> | |
92 | <entry>A bridge device is a software switch, and each of its slave devices and the bridge itself are ports of the switch.</entry></row> | |
93 | ||
94 | <row><entry><varname>dummy</varname></entry> | |
95 | <entry>A dummy device drops all packets sent to it.</entry></row> | |
96 | ||
97 | <row><entry><varname>gre</varname></entry> | |
98 | <entry>A Level 3 GRE tunnel over IPv4. See <ulink url="https://tools.ietf.org/html/rfc2784">RFC 2784</ulink> for details.</entry></row> | |
99 | ||
100 | <row><entry><varname>gretap</varname></entry> | |
101 | <entry>A Level 2 GRE tunnel over IPv4.</entry></row> | |
102 | ||
103 | <row><entry><varname>ip6gre</varname></entry> | |
104 | <entry>A Level 3 GRE tunnel over IPv6.</entry></row> | |
105 | ||
106 | <row><entry><varname>ip6tnl</varname></entry> | |
107 | <entry>An IPv4 or IPv6 tunnel over IPv6</entry></row> | |
108 | ||
109 | <row><entry><varname>ip6gretap</varname></entry> | |
110 | <entry>A Level 2 GRE tunnel over IPv6.</entry></row> | |
111 | ||
112 | <row><entry><varname>ipip</varname></entry> | |
113 | <entry>An IPv4 over IPv4 tunnel.</entry></row> | |
114 | ||
115 | <row><entry><varname>ipvlan</varname></entry> | |
116 | <entry>An ipvlan device is a stacked device which receives packets from its underlying device based on IP address filtering.</entry></row> | |
117 | ||
118 | <row><entry><varname>macvlan</varname></entry> | |
119 | <entry>A macvlan device is a stacked device which receives packets from its underlying device based on MAC address filtering.</entry></row> | |
120 | ||
121 | <row><entry><varname>macvtap</varname></entry> | |
122 | <entry>A macvtap device is a stacked device which receives packets from its underlying device based on MAC address filtering.</entry></row> | |
123 | ||
124 | <row><entry><varname>sit</varname></entry> | |
125 | <entry>An IPv6 over IPv4 tunnel.</entry></row> | |
126 | ||
127 | <row><entry><varname>tap</varname></entry> | |
128 | <entry>A persistent Level 2 tunnel between a network device and a device node.</entry></row> | |
129 | ||
130 | <row><entry><varname>tun</varname></entry> | |
131 | <entry>A persistent Level 3 tunnel between a network device and a device node.</entry></row> | |
132 | ||
133 | <row><entry><varname>veth</varname></entry> | |
134 | <entry>An Ethernet tunnel between a pair of network devices.</entry></row> | |
135 | ||
136 | <row><entry><varname>vlan</varname></entry> | |
137 | <entry>A VLAN is a stacked device which receives packets from its underlying device based on VLAN tagging. See <ulink url="http://www.ieee802.org/1/pages/802.1Q.html">IEEE 802.1Q</ulink> for details.</entry></row> | |
138 | ||
139 | <row><entry><varname>vti</varname></entry> | |
140 | <entry>An IPv4 over IPSec tunnel.</entry></row> | |
141 | ||
142 | <row><entry><varname>vti6</varname></entry> | |
143 | <entry>An IPv6 over IPSec tunnel.</entry></row> | |
144 | ||
145 | <row><entry><varname>vxlan</varname></entry> | |
146 | <entry>A virtual extensible LAN (vxlan), for connecting Cloud computing deployments.</entry></row> | |
147 | ||
148 | <row><entry><varname>geneve</varname></entry> | |
149 | <entry>A GEneric NEtwork Virtualization Encapsulation (GENEVE) netdev driver.</entry></row> | |
150 | ||
151 | <row><entry><varname>vrf</varname></entry> | |
152 | <entry>A Virtual Routing and Forwarding (<ulink url="https://www.kernel.org/doc/Documentation/networking/vrf.txt">VRF</ulink>) interface to create separate routing and forwarding domains.</entry></row> | |
153 | ||
154 | <row><entry><varname>vcan</varname></entry> | |
155 | <entry>The virtual CAN driver (vcan). Similar to the network loopback devices, vcan offers a virtual local CAN interface.</entry></row> | |
156 | ||
157 | <row><entry><varname>vxcan</varname></entry> | |
158 | <entry>The virtual CAN tunnel driver (vxcan). Similar to the virtual ethernet driver veth, vxcan implements a local CAN traffic tunnel between two virtual CAN network devices. When creating a vxcan, two vxcan devices are created as pair. When one end receives the packet it appears on its pair and vice versa. The vxcan can be used for cross namespace communication. | |
159 | </entry></row> | |
160 | ||
161 | <row><entry><varname>wireguard</varname></entry> | |
162 | <entry>WireGuard Secure Network Tunnel.</entry></row> | |
163 | ||
164 | <row><entry><varname>netdevsim</varname></entry> | |
165 | <entry> A simulator. This simulated networking device is used for testing various networking APIs and at this time is particularly focused on testing hardware offloading related interfaces.</entry></row> | |
166 | ||
167 | <row><entry><varname>fou</varname></entry> | |
168 | <entry>Foo-over-UDP tunneling.</entry></row> | |
169 | ||
170 | </tbody> | |
171 | </tgroup> | |
172 | </table> | |
173 | ||
174 | </refsect1> | |
175 | ||
176 | <refsect1> | |
177 | <title>[Match] Section Options</title> | |
178 | ||
179 | <para>A virtual network device is only created if the | |
180 | <literal>[Match]</literal> section matches the current | |
181 | environment, or if the section is empty. The following keys are | |
182 | accepted:</para> | |
183 | ||
184 | <variablelist class='network-directives'> | |
185 | <varlistentry> | |
186 | <term><varname>Host=</varname></term> | |
187 | <listitem> | |
188 | <para>Matches against the hostname or machine ID of the | |
189 | host. See <literal>ConditionHost=</literal> in | |
190 | <citerefentry><refentrytitle>systemd.unit</refentrytitle><manvolnum>5</manvolnum></citerefentry> | |
191 | for details. | |
192 | </para> | |
193 | </listitem> | |
194 | </varlistentry> | |
195 | <varlistentry> | |
196 | <term><varname>Virtualization=</varname></term> | |
197 | <listitem> | |
198 | <para>Checks whether the system is executed in a virtualized | |
199 | environment and optionally test whether it is a specific | |
200 | implementation. See | |
201 | <literal>ConditionVirtualization=</literal> in | |
202 | <citerefentry><refentrytitle>systemd.unit</refentrytitle><manvolnum>5</manvolnum></citerefentry> | |
203 | for details. | |
204 | </para> | |
205 | </listitem> | |
206 | </varlistentry> | |
207 | <varlistentry> | |
208 | <term><varname>KernelCommandLine=</varname></term> | |
209 | <listitem> | |
210 | <para>Checks whether a specific kernel command line option | |
211 | is set (or if prefixed with the exclamation mark unset). See | |
212 | <literal>ConditionKernelCommandLine=</literal> in | |
213 | <citerefentry><refentrytitle>systemd.unit</refentrytitle><manvolnum>5</manvolnum></citerefentry> | |
214 | for details. | |
215 | </para> | |
216 | </listitem> | |
217 | </varlistentry> | |
218 | <varlistentry> | |
219 | <term><varname>KernelVersion=</varname></term> | |
220 | <listitem> | |
221 | <para>Checks whether the kernel version (as reported by <command>uname -r</command>) matches a certain | |
222 | expression (or if prefixed with the exclamation mark does not match it). See | |
223 | <literal>ConditionKernelVersion=</literal> in | |
224 | <citerefentry><refentrytitle>systemd.unit</refentrytitle><manvolnum>5</manvolnum></citerefentry> for details. | |
225 | </para> | |
226 | </listitem> | |
227 | </varlistentry> | |
228 | <varlistentry> | |
229 | <term><varname>Architecture=</varname></term> | |
230 | <listitem> | |
231 | <para>Checks whether the system is running on a specific | |
232 | architecture. See <literal>ConditionArchitecture=</literal> in | |
233 | <citerefentry><refentrytitle>systemd.unit</refentrytitle><manvolnum>5</manvolnum></citerefentry> | |
234 | for details. | |
235 | </para> | |
236 | </listitem> | |
237 | </varlistentry> | |
238 | </variablelist> | |
239 | ||
240 | </refsect1> | |
241 | ||
242 | <refsect1> | |
243 | <title>[NetDev] Section Options</title> | |
244 | ||
245 | <para>The <literal>[NetDev]</literal> section accepts the | |
246 | following keys:</para> | |
247 | ||
248 | <variablelist class='network-directives'> | |
249 | <varlistentry> | |
250 | <term><varname>Description=</varname></term> | |
251 | <listitem> | |
252 | <para>A free-form description of the netdev.</para> | |
253 | </listitem> | |
254 | </varlistentry> | |
255 | <varlistentry> | |
256 | <term><varname>Name=</varname></term> | |
257 | <listitem> | |
258 | <para>The interface name used when creating the netdev. | |
259 | This option is compulsory.</para> | |
260 | </listitem> | |
261 | </varlistentry> | |
262 | <varlistentry> | |
263 | <term><varname>Kind=</varname></term> | |
264 | <listitem> | |
265 | <para>The netdev kind. This option is compulsory. See the | |
266 | <literal>Supported netdev kinds</literal> section for the | |
267 | valid keys.</para> | |
268 | </listitem> | |
269 | </varlistentry> | |
270 | <varlistentry> | |
271 | <term><varname>MTUBytes=</varname></term> | |
272 | <listitem> | |
273 | <para>The maximum transmission unit in bytes to set for the device. The usual suffixes K, M, G, | |
274 | are supported and are understood to the base of 1024. For <literal>tun</literal> or | |
275 | <literal>tap</literal> devices, <varname>MTUBytes=</varname> setting is not currently supported in | |
276 | <literal>[NetDev]</literal> section. Please specify it in <literal>[Link]</literal> section of | |
277 | corresponding | |
278 | <citerefentry><refentrytitle>systemd.network</refentrytitle><manvolnum>5</manvolnum></citerefentry> | |
279 | files.</para> | |
280 | </listitem> | |
281 | </varlistentry> | |
282 | <varlistentry> | |
283 | <term><varname>MACAddress=</varname></term> | |
284 | <listitem> | |
285 | <para>The MAC address to use for the device. If none is | |
286 | given, one is generated based on the interface name and | |
287 | the | |
288 | <citerefentry><refentrytitle>machine-id</refentrytitle><manvolnum>5</manvolnum></citerefentry>. | |
289 | For <literal>tun</literal> or <literal>tap</literal> devices, <varname>MACAddress=</varname> setting | |
290 | is not currently supported in <literal>[NetDev]</literal> section. Please specify it in | |
291 | <literal>[Link]</literal> section of corresponding | |
292 | <citerefentry><refentrytitle>systemd.network</refentrytitle><manvolnum>5</manvolnum></citerefentry> | |
293 | files.</para> | |
294 | </listitem> | |
295 | </varlistentry> | |
296 | </variablelist> | |
297 | </refsect1> | |
298 | ||
299 | <refsect1> | |
300 | <title>[Bridge] Section Options</title> | |
301 | ||
302 | <para>The <literal>[Bridge]</literal> section only applies for | |
303 | netdevs of kind <literal>bridge</literal>, and accepts the | |
304 | following keys:</para> | |
305 | ||
306 | <variablelist class='network-directives'> | |
307 | <varlistentry> | |
308 | <term><varname>HelloTimeSec=</varname></term> | |
309 | <listitem> | |
310 | <para>HelloTimeSec specifies the number of seconds between two hello packets | |
311 | sent out by the root bridge and the designated bridges. Hello packets are | |
312 | used to communicate information about the topology throughout the entire | |
313 | bridged local area network.</para> | |
314 | </listitem> | |
315 | </varlistentry> | |
316 | <varlistentry> | |
317 | <term><varname>MaxAgeSec=</varname></term> | |
318 | <listitem> | |
319 | <para>MaxAgeSec specifies the number of seconds of maximum message age. | |
320 | If the last seen (received) hello packet is more than this number of | |
321 | seconds old, the bridge in question will start the takeover procedure | |
322 | in attempt to become the Root Bridge itself.</para> | |
323 | </listitem> | |
324 | </varlistentry> | |
325 | <varlistentry> | |
326 | <term><varname>ForwardDelaySec=</varname></term> | |
327 | <listitem> | |
328 | <para>ForwardDelaySec specifies the number of seconds spent in each | |
329 | of the Listening and Learning states before the Forwarding state is entered.</para> | |
330 | </listitem> | |
331 | </varlistentry> | |
332 | <varlistentry> | |
333 | <term><varname>AgeingTimeSec=</varname></term> | |
334 | <listitem> | |
335 | <para>This specifies the number of seconds a MAC Address will be kept in | |
336 | the forwarding database after having a packet received from this MAC Address.</para> | |
337 | </listitem> | |
338 | </varlistentry> | |
339 | <varlistentry> | |
340 | <term><varname>Priority=</varname></term> | |
341 | <listitem> | |
342 | <para>The priority of the bridge. An integer between 0 and 65535. A lower value | |
343 | means higher priority. The bridge having the lowest priority will be elected as root bridge.</para> | |
344 | </listitem> | |
345 | </varlistentry> | |
346 | <varlistentry> | |
347 | <term><varname>GroupForwardMask=</varname></term> | |
348 | <listitem> | |
349 | <para>A 16-bit bitmask represented as an integer which allows forwarding of link | |
350 | local frames with 802.1D reserved addresses (01:80:C2:00:00:0X). A logical AND | |
351 | is performed between the specified bitmask and the exponentiation of 2^X, the | |
352 | lower nibble of the last octet of the MAC address. For example, a value of 8 | |
353 | would allow forwarding of frames addressed to 01:80:C2:00:00:03 (802.1X PAE).</para> | |
354 | </listitem> | |
355 | </varlistentry> | |
356 | <varlistentry> | |
357 | <term><varname>DefaultPVID=</varname></term> | |
358 | <listitem> | |
359 | <para>This specifies the default port VLAN ID of a newly attached bridge port. | |
360 | Set this to an integer in the range 1–4094 or <literal>none</literal> to disable the PVID.</para> | |
361 | </listitem> | |
362 | </varlistentry> | |
363 | <varlistentry> | |
364 | <term><varname>MulticastQuerier=</varname></term> | |
365 | <listitem> | |
366 | <para>A boolean. This setting controls the IFLA_BR_MCAST_QUERIER option in the kernel. | |
367 | If enabled, the kernel will send general ICMP queries from a zero source address. | |
368 | This feature should allow faster convergence on startup, but it causes some | |
369 | multicast-aware switches to misbehave and disrupt forwarding of multicast packets. | |
370 | When unset, the kernel's default setting applies. | |
371 | </para> | |
372 | </listitem> | |
373 | </varlistentry> | |
374 | <varlistentry> | |
375 | <term><varname>MulticastSnooping=</varname></term> | |
376 | <listitem> | |
377 | <para>A boolean. This setting controls the IFLA_BR_MCAST_SNOOPING option in the kernel. | |
378 | If enabled, IGMP snooping monitors the Internet Group Management Protocol (IGMP) traffic | |
379 | between hosts and multicast routers. When unset, the kernel's default setting applies. | |
380 | </para> | |
381 | </listitem> | |
382 | </varlistentry> | |
383 | <varlistentry> | |
384 | <term><varname>VLANFiltering=</varname></term> | |
385 | <listitem> | |
386 | <para>A boolean. This setting controls the IFLA_BR_VLAN_FILTERING option in the kernel. | |
387 | If enabled, the bridge will be started in VLAN-filtering mode. When unset, the kernel's | |
388 | default setting applies. | |
389 | </para> | |
390 | </listitem> | |
391 | </varlistentry> | |
392 | <varlistentry> | |
393 | <term><varname>STP=</varname></term> | |
394 | <listitem> | |
395 | <para>A boolean. This enables the bridge's Spanning Tree Protocol (STP). When unset, | |
396 | the kernel's default setting applies. | |
397 | </para> | |
398 | </listitem> | |
399 | </varlistentry> | |
400 | </variablelist> | |
401 | </refsect1> | |
402 | ||
403 | <refsect1> | |
404 | <title>[VLAN] Section Options</title> | |
405 | ||
406 | <para>The <literal>[VLAN]</literal> section only applies for | |
407 | netdevs of kind <literal>vlan</literal>, and accepts the | |
408 | following key:</para> | |
409 | ||
410 | <variablelist class='network-directives'> | |
411 | <varlistentry> | |
412 | <term><varname>Id=</varname></term> | |
413 | <listitem> | |
414 | <para>The VLAN ID to use. An integer in the range 0–4094. | |
415 | This option is compulsory.</para> | |
416 | </listitem> | |
417 | </varlistentry> | |
418 | <varlistentry> | |
419 | <term><varname>GVRP=</varname></term> | |
420 | <listitem> | |
421 | <para>The Generic VLAN Registration Protocol (GVRP) is a protocol that | |
422 | allows automatic learning of VLANs on a network. A boolean. When unset, | |
423 | the kernel's default setting applies.</para> | |
424 | </listitem> | |
425 | </varlistentry> | |
426 | <varlistentry> | |
427 | <term><varname>MVRP=</varname></term> | |
428 | <listitem> | |
429 | <para>Multiple VLAN Registration Protocol (MVRP) formerly known as GARP VLAN | |
430 | Registration Protocol (GVRP) is a standards-based Layer 2 network protocol, | |
431 | for automatic configuration of VLAN information on switches. It was defined | |
432 | in the 802.1ak amendment to 802.1Q-2005. A boolean. When unset, the kernel's | |
433 | default setting applies.</para> | |
434 | </listitem> | |
435 | </varlistentry> | |
436 | <varlistentry> | |
437 | <term><varname>LooseBinding=</varname></term> | |
438 | <listitem> | |
439 | <para>The VLAN loose binding mode, in which only the operational state is passed | |
440 | from the parent to the associated VLANs, but the VLAN device state is not changed. | |
441 | A boolean. When unset, the kernel's default setting applies.</para> | |
442 | </listitem> | |
443 | </varlistentry> | |
444 | <varlistentry> | |
445 | <term><varname>ReorderHeader=</varname></term> | |
446 | <listitem> | |
447 | <para>The VLAN reorder header is set VLAN interfaces behave like physical interfaces. | |
448 | A boolean. When unset, the kernel's default setting applies.</para> | |
449 | </listitem> | |
450 | </varlistentry> | |
451 | </variablelist> | |
452 | </refsect1> | |
453 | ||
454 | <refsect1> | |
455 | <title>[MACVLAN] Section Options</title> | |
456 | ||
457 | <para>The <literal>[MACVLAN]</literal> section only applies for | |
458 | netdevs of kind <literal>macvlan</literal>, and accepts the | |
459 | following key:</para> | |
460 | ||
461 | <variablelist class='network-directives'> | |
462 | <varlistentry> | |
463 | <term><varname>Mode=</varname></term> | |
464 | <listitem> | |
465 | <para>The MACVLAN mode to use. The supported options are | |
466 | <literal>private</literal>, | |
467 | <literal>vepa</literal>, | |
468 | <literal>bridge</literal>, and | |
469 | <literal>passthru</literal>. | |
470 | </para> | |
471 | </listitem> | |
472 | </varlistentry> | |
473 | </variablelist> | |
474 | ||
475 | </refsect1> | |
476 | ||
477 | <refsect1> | |
478 | <title>[MACVTAP] Section Options</title> | |
479 | ||
480 | <para>The <literal>[MACVTAP]</literal> section applies for | |
481 | netdevs of kind <literal>macvtap</literal> and accepts the | |
482 | same key as <literal>[MACVLAN]</literal>.</para> | |
483 | ||
484 | </refsect1> | |
485 | ||
486 | <refsect1> | |
487 | <title>[IPVLAN] Section Options</title> | |
488 | ||
489 | <para>The <literal>[IPVLAN]</literal> section only applies for | |
490 | netdevs of kind <literal>ipvlan</literal>, and accepts the | |
491 | following key:</para> | |
492 | ||
493 | <variablelist class='network-directives'> | |
494 | <varlistentry> | |
495 | <term><varname>Mode=</varname></term> | |
496 | <listitem> | |
497 | <para>The IPVLAN mode to use. The supported options are | |
498 | <literal>L2</literal>,<literal>L3</literal> and <literal>L3S</literal>. | |
499 | </para> | |
500 | </listitem> | |
501 | </varlistentry> | |
502 | <varlistentry> | |
503 | <term><varname>Flags=</varname></term> | |
504 | <listitem> | |
505 | <para>The IPVLAN flags to use. The supported options are | |
506 | <literal>bridge</literal>,<literal>private</literal> and <literal>vepa</literal>. | |
507 | </para> | |
508 | </listitem> | |
509 | </varlistentry> | |
510 | </variablelist> | |
511 | ||
512 | </refsect1> | |
513 | ||
514 | <refsect1> | |
515 | <title>[VXLAN] Section Options</title> | |
516 | <para>The <literal>[VXLAN]</literal> section only applies for | |
517 | netdevs of kind <literal>vxlan</literal>, and accepts the | |
518 | following keys:</para> | |
519 | ||
520 | <variablelist class='network-directives'> | |
521 | <varlistentry> | |
522 | <term><varname>Id=</varname></term> | |
523 | <listitem> | |
524 | <para>The VXLAN ID to use.</para> | |
525 | </listitem> | |
526 | </varlistentry> | |
527 | <varlistentry> | |
528 | <term><varname>Remote=</varname></term> | |
529 | <listitem> | |
530 | <para>Configures destination IP address.</para> | |
531 | </listitem> | |
532 | </varlistentry> | |
533 | <varlistentry> | |
534 | <term><varname>Local=</varname></term> | |
535 | <listitem> | |
536 | <para>Configures local IP address.</para> | |
537 | </listitem> | |
538 | </varlistentry> | |
539 | <varlistentry> | |
540 | <term><varname>TOS=</varname></term> | |
541 | <listitem> | |
542 | <para>The Type Of Service byte value for a vxlan interface.</para> | |
543 | </listitem> | |
544 | </varlistentry> | |
545 | <varlistentry> | |
546 | <term><varname>TTL=</varname></term> | |
547 | <listitem> | |
548 | <para>A fixed Time To Live N on Virtual eXtensible Local | |
549 | Area Network packets. N is a number in the range 1–255. 0 | |
550 | is a special value meaning that packets inherit the TTL | |
551 | value.</para> | |
552 | </listitem> | |
553 | </varlistentry> | |
554 | <varlistentry> | |
555 | <term><varname>MacLearning=</varname></term> | |
556 | <listitem> | |
557 | <para>A boolean. When true, enables dynamic MAC learning | |
558 | to discover remote MAC addresses.</para> | |
559 | </listitem> | |
560 | </varlistentry> | |
561 | <varlistentry> | |
562 | <term><varname>FDBAgeingSec=</varname></term> | |
563 | <listitem> | |
564 | <para>The lifetime of Forwarding Database entry learnt by | |
565 | the kernel, in seconds.</para> | |
566 | </listitem> | |
567 | </varlistentry> | |
568 | <varlistentry> | |
569 | <term><varname>MaximumFDBEntries=</varname></term> | |
570 | <listitem> | |
571 | <para>Configures maximum number of FDB entries.</para> | |
572 | </listitem> | |
573 | </varlistentry> | |
574 | <varlistentry> | |
575 | <term><varname>ReduceARPProxy=</varname></term> | |
576 | <listitem> | |
577 | <para>A boolean. When true, bridge-connected VXLAN tunnel | |
578 | endpoint answers ARP requests from the local bridge on behalf | |
579 | of remote Distributed Overlay Virtual Ethernet | |
580 | <ulink url="https://en.wikipedia.org/wiki/Distributed_Overlay_Virtual_Ethernet"> | |
581 | (DVOE)</ulink> clients. Defaults to false.</para> | |
582 | </listitem> | |
583 | </varlistentry> | |
584 | <varlistentry> | |
585 | <term><varname>L2MissNotification=</varname></term> | |
586 | <listitem> | |
587 | <para>A boolean. When true, enables netlink LLADDR miss | |
588 | notifications.</para> | |
589 | </listitem> | |
590 | </varlistentry> | |
591 | <varlistentry> | |
592 | <term><varname>L3MissNotification=</varname></term> | |
593 | <listitem> | |
594 | <para>A boolean. When true, enables netlink IP address miss | |
595 | notifications.</para> | |
596 | </listitem> | |
597 | </varlistentry> | |
598 | <varlistentry> | |
599 | <term><varname>RouteShortCircuit=</varname></term> | |
600 | <listitem> | |
601 | <para>A boolean. When true, route short circuiting is turned | |
602 | on.</para> | |
603 | </listitem> | |
604 | </varlistentry> | |
605 | <varlistentry> | |
606 | <term><varname>UDPChecksum=</varname></term> | |
607 | <listitem> | |
608 | <para>A boolean. When true, transmitting UDP checksums when doing VXLAN/IPv4 is turned on.</para> | |
609 | </listitem> | |
610 | </varlistentry> | |
611 | <varlistentry> | |
612 | <term><varname>UDP6ZeroChecksumTx=</varname></term> | |
613 | <listitem> | |
614 | <para>A boolean. When true, sending zero checksums in VXLAN/IPv6 is turned on.</para> | |
615 | </listitem> | |
616 | </varlistentry> | |
617 | <varlistentry> | |
618 | <term><varname>UDP6ZeroChecksumRx=</varname></term> | |
619 | <listitem> | |
620 | <para>A boolean. When true, receiving zero checksums in VXLAN/IPv6 is turned on.</para> | |
621 | </listitem> | |
622 | </varlistentry> | |
623 | <varlistentry> | |
624 | <term><varname>RemoteChecksumTx=</varname></term> | |
625 | <listitem> | |
626 | <para>A boolean. When true, remote transmit checksum offload of VXLAN is turned on.</para> | |
627 | </listitem> | |
628 | </varlistentry> | |
629 | <varlistentry> | |
630 | <term><varname>RemoteChecksumRx=</varname></term> | |
631 | <listitem> | |
632 | <para>A boolean. When true, remote receive checksum offload in VXLAN is turned on.</para> | |
633 | </listitem> | |
634 | </varlistentry> | |
635 | <varlistentry> | |
636 | <term><varname>GroupPolicyExtension=</varname></term> | |
637 | <listitem> | |
638 | <para>A boolean. When true, it enables Group Policy VXLAN extension security label mechanism | |
639 | across network peers based on VXLAN. For details about the Group Policy VXLAN, see the | |
640 | <ulink url="https://tools.ietf.org/html/draft-smith-vxlan-group-policy"> | |
641 | VXLAN Group Policy </ulink> document. Defaults to false.</para> | |
642 | </listitem> | |
643 | </varlistentry> | |
644 | <varlistentry> | |
645 | <term><varname>DestinationPort=</varname></term> | |
646 | <listitem> | |
647 | <para>Configures the default destination UDP port on a per-device basis. | |
648 | If destination port is not specified then Linux kernel default will be used. | |
649 | Set destination port 4789 to get the IANA assigned value. If not set or if the | |
650 | destination port is assigned the empty string the default port of 4789 is used.</para> | |
651 | </listitem> | |
652 | </varlistentry> | |
653 | <varlistentry> | |
654 | <term><varname>PortRange=</varname></term> | |
655 | <listitem> | |
656 | <para>Configures VXLAN port range. VXLAN bases source | |
657 | UDP port based on flow to help the receiver to be able | |
658 | to load balance based on outer header flow. It | |
659 | restricts the port range to the normal UDP local | |
660 | ports, and allows overriding via configuration.</para> | |
661 | </listitem> | |
662 | </varlistentry> | |
663 | <varlistentry> | |
664 | <term><varname>FlowLabel=</varname></term> | |
665 | <listitem> | |
666 | <para>Specifies the flow label to use in outgoing packets. | |
667 | The valid range is 0-1048575. | |
668 | </para> | |
669 | </listitem> | |
670 | </varlistentry> | |
671 | </variablelist> | |
672 | </refsect1> | |
673 | <refsect1> | |
674 | <title>[GENEVE] Section Options</title> | |
675 | <para>The <literal>[GENEVE]</literal> section only applies for | |
676 | netdevs of kind <literal>geneve</literal>, and accepts the | |
677 | following keys:</para> | |
678 | ||
679 | <variablelist class='network-directives'> | |
680 | <varlistentry> | |
681 | <term><varname>Id=</varname></term> | |
682 | <listitem> | |
683 | <para>Specifies the Virtual Network Identifier (VNI) to use. Ranges [0-16777215].</para> | |
684 | </listitem> | |
685 | </varlistentry> | |
686 | <varlistentry> | |
687 | <term><varname>Remote=</varname></term> | |
688 | <listitem> | |
689 | <para>Specifies the unicast destination IP address to use in outgoing packets.</para> | |
690 | </listitem> | |
691 | </varlistentry> | |
692 | <varlistentry> | |
693 | <term><varname>TOS=</varname></term> | |
694 | <listitem> | |
695 | <para>Specifies the TOS value to use in outgoing packets. Ranges [1-255].</para> | |
696 | </listitem> | |
697 | </varlistentry> | |
698 | <varlistentry> | |
699 | <term><varname>TTL=</varname></term> | |
700 | <listitem> | |
701 | <para>Specifies the TTL value to use in outgoing packets. Ranges [1-255].</para> | |
702 | </listitem> | |
703 | </varlistentry> | |
704 | <varlistentry> | |
705 | <term><varname>UDPChecksum=</varname></term> | |
706 | <listitem> | |
707 | <para>A boolean. When true, specifies if UDP checksum is calculated for transmitted packets over IPv4.</para> | |
708 | </listitem> | |
709 | </varlistentry> | |
710 | <varlistentry> | |
711 | <term><varname>UDP6ZeroChecksumTx=</varname></term> | |
712 | <listitem> | |
713 | <para>A boolean. When true, skip UDP checksum calculation for transmitted packets over IPv6.</para> | |
714 | </listitem> | |
715 | </varlistentry> | |
716 | <varlistentry> | |
717 | <term><varname>UDP6ZeroChecksumRx=</varname></term> | |
718 | <listitem> | |
719 | <para>A boolean. When true, allows incoming UDP packets over IPv6 with zero checksum field.</para> | |
720 | </listitem> | |
721 | </varlistentry> | |
722 | <varlistentry> | |
723 | <term><varname>DestinationPort=</varname></term> | |
724 | <listitem> | |
725 | <para>Specifies destination port. Defaults to 6081. If not set or assigned the empty string, the default | |
726 | port of 6081 is used.</para> | |
727 | </listitem> | |
728 | </varlistentry> | |
729 | <varlistentry> | |
730 | <term><varname>FlowLabel=</varname></term> | |
731 | <listitem> | |
732 | <para>Specifies the flow label to use in outgoing packets.</para> | |
733 | </listitem> | |
734 | </varlistentry> | |
735 | </variablelist> | |
736 | </refsect1> | |
737 | <refsect1> | |
738 | <title>[Tunnel] Section Options</title> | |
739 | ||
740 | <para>The <literal>[Tunnel]</literal> section only applies for | |
741 | netdevs of kind | |
742 | <literal>ipip</literal>, | |
743 | <literal>sit</literal>, | |
744 | <literal>gre</literal>, | |
745 | <literal>gretap</literal>, | |
746 | <literal>ip6gre</literal>, | |
747 | <literal>ip6gretap</literal>, | |
748 | <literal>vti</literal>, | |
749 | <literal>vti6</literal>, and | |
750 | <literal>ip6tnl</literal> and accepts | |
751 | the following keys:</para> | |
752 | ||
753 | <variablelist class='network-directives'> | |
754 | <varlistentry> | |
755 | <term><varname>Local=</varname></term> | |
756 | <listitem> | |
757 | <para>A static local address for tunneled packets. It must | |
758 | be an address on another interface of this host.</para> | |
759 | </listitem> | |
760 | </varlistentry> | |
761 | <varlistentry> | |
762 | <term><varname>Remote=</varname></term> | |
763 | <listitem> | |
764 | <para>The remote endpoint of the tunnel.</para> | |
765 | </listitem> | |
766 | </varlistentry> | |
767 | <varlistentry> | |
768 | <term><varname>TOS=</varname></term> | |
769 | <listitem> | |
770 | <para>The Type Of Service byte value for a tunnel interface. | |
771 | For details about the TOS, see the | |
772 | <ulink url="http://tools.ietf.org/html/rfc1349"> Type of | |
773 | Service in the Internet Protocol Suite </ulink> document. | |
774 | </para> | |
775 | </listitem> | |
776 | </varlistentry> | |
777 | <varlistentry> | |
778 | <term><varname>TTL=</varname></term> | |
779 | <listitem> | |
780 | <para>A fixed Time To Live N on tunneled packets. N is a | |
781 | number in the range 1–255. 0 is a special value meaning that | |
782 | packets inherit the TTL value. The default value for IPv4 | |
783 | tunnels is: inherit. The default value for IPv6 tunnels is | |
784 | 64.</para> | |
785 | </listitem> | |
786 | </varlistentry> | |
787 | <varlistentry> | |
788 | <term><varname>DiscoverPathMTU=</varname></term> | |
789 | <listitem> | |
790 | <para>A boolean. When true, enables Path MTU Discovery on | |
791 | the tunnel.</para> | |
792 | </listitem> | |
793 | </varlistentry> | |
794 | <varlistentry> | |
795 | <term><varname>IPv6FlowLabel=</varname></term> | |
796 | <listitem> | |
797 | <para>Configures the 20-bit flow label (see <ulink url="https://tools.ietf.org/html/rfc6437"> | |
798 | RFC 6437</ulink>) field in the IPv6 header (see <ulink url="https://tools.ietf.org/html/rfc2460"> | |
799 | RFC 2460</ulink>), which is used by a node to label packets of a flow. | |
800 | It is only used for IPv6 tunnels. | |
801 | A flow label of zero is used to indicate packets that have | |
802 | not been labeled. | |
803 | It can be configured to a value in the range 0–0xFFFFF, or be | |
804 | set to <literal>inherit</literal>, in which case the original flowlabel is used.</para> | |
805 | </listitem> | |
806 | </varlistentry> | |
807 | <varlistentry> | |
808 | <term><varname>CopyDSCP=</varname></term> | |
809 | <listitem> | |
810 | <para>A boolean. When true, the Differentiated Service Code | |
811 | Point (DSCP) field will be copied to the inner header from | |
812 | outer header during the decapsulation of an IPv6 tunnel | |
813 | packet. DSCP is a field in an IP packet that enables different | |
814 | levels of service to be assigned to network traffic. | |
815 | Defaults to <literal>no</literal>. | |
816 | </para> | |
817 | </listitem> | |
818 | </varlistentry> | |
819 | <varlistentry> | |
820 | <term><varname>EncapsulationLimit=</varname></term> | |
821 | <listitem> | |
822 | <para>The Tunnel Encapsulation Limit option specifies how many additional | |
823 | levels of encapsulation are permitted to be prepended to the packet. | |
824 | For example, a Tunnel Encapsulation Limit option containing a limit | |
825 | value of zero means that a packet carrying that option may not enter | |
826 | another tunnel before exiting the current tunnel. | |
827 | (see <ulink url="https://tools.ietf.org/html/rfc2473#section-4.1.1"> RFC 2473</ulink>). | |
828 | The valid range is 0–255 and <literal>none</literal>. Defaults to 4. | |
829 | </para> | |
830 | </listitem> | |
831 | </varlistentry> | |
832 | <varlistentry> | |
833 | <term><varname>Key=</varname></term> | |
834 | <listitem> | |
835 | <para>The <varname>Key=</varname> parameter specifies the same key to use in | |
836 | both directions (<varname>InputKey=</varname> and <varname>OutputKey=</varname>). | |
837 | The <varname>Key=</varname> is either a number or an IPv4 address-like dotted quad. | |
838 | It is used as mark-configured SAD/SPD entry as part of the lookup key (both in data | |
839 | and control path) in ip xfrm (framework used to implement IPsec protocol). | |
840 | See <ulink url="http://man7.org/linux/man-pages/man8/ip-xfrm.8.html"> | |
841 | ip-xfrm — transform configuration</ulink> for details. It is only used for VTI/VTI6 | |
842 | tunnels.</para> | |
843 | </listitem> | |
844 | </varlistentry> | |
845 | <varlistentry> | |
846 | <term><varname>InputKey=</varname></term> | |
847 | <listitem> | |
848 | <para>The <varname>InputKey=</varname> parameter specifies the key to use for input. | |
849 | The format is same as <varname>Key=</varname>. It is only used for VTI/VTI6 tunnels.</para> | |
850 | </listitem> | |
851 | </varlistentry> | |
852 | <varlistentry> | |
853 | <term><varname>OutputKey=</varname></term> | |
854 | <listitem> | |
855 | <para>The <varname>OutputKey=</varname> parameter specifies the key to use for output. | |
856 | The format is same as <varname>Key=</varname>. It is only used for VTI/VTI6 tunnels.</para> | |
857 | </listitem> | |
858 | </varlistentry> | |
859 | <varlistentry> | |
860 | <term><varname>Mode=</varname></term> | |
861 | <listitem> | |
862 | <para>An <literal>ip6tnl</literal> tunnel can be in one of three | |
863 | modes | |
864 | <literal>ip6ip6</literal> for IPv6 over IPv6, | |
865 | <literal>ipip6</literal> for IPv4 over IPv6 or | |
866 | <literal>any</literal> for either. | |
867 | </para> | |
868 | </listitem> | |
869 | </varlistentry> | |
870 | <varlistentry> | |
871 | <term><varname>Independent=</varname></term> | |
872 | <listitem> | |
873 | <para>A boolean. When true tunnel does not require .network file. Created as "tunnel@NONE". | |
874 | Defaults to <literal>false</literal>. | |
875 | </para> | |
876 | </listitem> | |
877 | </varlistentry> | |
878 | <varlistentry> | |
879 | <term><varname>AllowLocalRemote=</varname></term> | |
880 | <listitem> | |
881 | <para>A boolean. When true allows tunnel traffic on <varname>ip6tnl</varname> devices where the remote endpoint is a local host address. | |
882 | Defaults to unset. | |
883 | </para> | |
884 | </listitem> | |
885 | </varlistentry> | |
886 | <varlistentry> | |
887 | <term><varname>FooOverUDP=</varname></term> | |
888 | <listitem> | |
889 | <para>A boolean. Specifies whether <varname>FooOverUDP=</varname> tunnel is to be configured. | |
890 | Defaults to false. For more detail information see | |
891 | <ulink url="https://lwn.net/Articles/614348">Foo over UDP</ulink></para> | |
892 | </listitem> | |
893 | </varlistentry> | |
894 | <varlistentry> | |
895 | <term><varname>FOUDestinationPort=</varname></term> | |
896 | <listitem> | |
897 | <para>The <varname>FOUDestinationPort=</varname> specifies the UDP destination port for encapsulation. | |
898 | This field is mandatory and is not set by default.</para> | |
899 | </listitem> | |
900 | </varlistentry> | |
901 | <varlistentry> | |
902 | <term><varname>FOUSourcePort=</varname></term> | |
903 | <listitem> | |
904 | <para>The <constant>FOUSourcePort=</constant> specifies the UDP source port for encapsulation. Defaults to <varname>0</varname>, | |
905 | that is, the source port for packets is left to the network stack to decide.</para> | |
906 | </listitem> | |
907 | </varlistentry> | |
908 | <varlistentry> | |
909 | <term><varname>Encapsulation=</varname></term> | |
910 | <listitem> | |
911 | <para>Accepts the same key as <literal>[FooOverUDP]</literal></para> | |
912 | </listitem> | |
913 | </varlistentry> | |
914 | <varlistentry> | |
915 | <term><varname>IPv6RapidDeploymentPrefix=</varname></term> | |
916 | <listitem> | |
917 | <para>Reconfigure the tunnel for <ulink url="https://tools.ietf.org/html/rfc5569">IPv6 Rapid | |
918 | Deployment</ulink>, also known as 6rd. The value is an ISP-specific IPv6 prefix with a non-zero length. Only | |
919 | applicable to SIT tunnels.</para> | |
920 | </listitem> | |
921 | </varlistentry> | |
922 | </variablelist> | |
923 | </refsect1> | |
924 | ||
925 | <refsect1> | |
926 | <title>[FooOverUDP] Section Options</title> | |
927 | ||
928 | <para>The <literal>[FooOverUDP]</literal> section only applies for | |
929 | netdevs of kind <literal>fou</literal> and accepts the | |
930 | following keys:</para> | |
931 | ||
932 | <variablelist class='network-directives'> | |
933 | <varlistentry> | |
934 | <term><varname>Protocol=</varname></term> | |
935 | <listitem> | |
936 | <para>The <varname>Protocol=</varname> specifies the protocol number of the | |
937 | packets arriving at the UDP port. This field is mandatory and is not set by default. Valid range is 1-255.</para> | |
938 | </listitem> | |
939 | </varlistentry> | |
940 | <varlistentry> | |
941 | <term><varname>Encapsulation=</varname></term> | |
942 | <listitem> | |
943 | <para>Specifies the encapsulation mechanism used to store networking packets of various protocols inside the UDP packets. Supports the following values: | |
944 | ||
945 | <literal>FooOverUDP</literal> provides the simplest no frills model of UDP encapsulation, it simply encapsulates | |
946 | packets directly in the UDP payload. | |
947 | <literal>GenericUDPEncapsulation</literal> is a generic and extensible encapsulation, it allows encapsulation of packets for any IP | |
948 | protocol and optional data as part of the encapsulation. | |
949 | For more detailed information see <ulink url="https://lwn.net/Articles/615044">Generic UDP Encapsulation</ulink>. | |
950 | Defaults to <literal>FooOverUDP</literal>. | |
951 | </para> | |
952 | </listitem> | |
953 | </varlistentry> | |
954 | <varlistentry> | |
955 | <term><varname>Port=</varname></term> | |
956 | <listitem> | |
957 | <para>Specifies the port number, where the IP encapsulation packets will arrive. Please take note that the packets | |
958 | will arrive with the encapsulation will be removed. Then they will be manually fed back into the network stack, and sent ahead | |
959 | for delivery to the real destination. This option is mandatory.</para> | |
960 | </listitem> | |
961 | </varlistentry> | |
962 | </variablelist> | |
963 | </refsect1> | |
964 | <refsect1> | |
965 | <title>[Peer] Section Options</title> | |
966 | ||
967 | <para>The <literal>[Peer]</literal> section only applies for | |
968 | netdevs of kind <literal>veth</literal> and accepts the | |
969 | following keys:</para> | |
970 | ||
971 | <variablelist class='network-directives'> | |
972 | <varlistentry> | |
973 | <term><varname>Name=</varname></term> | |
974 | <listitem> | |
975 | <para>The interface name used when creating the netdev. | |
976 | This option is compulsory.</para> | |
977 | </listitem> | |
978 | </varlistentry> | |
979 | <varlistentry> | |
980 | <term><varname>MACAddress=</varname></term> | |
981 | <listitem> | |
982 | <para>The peer MACAddress, if not set, it is generated in | |
983 | the same way as the MAC address of the main | |
984 | interface.</para> | |
985 | </listitem> | |
986 | </varlistentry> | |
987 | </variablelist> | |
988 | </refsect1> | |
989 | <refsect1> | |
990 | <title>[VXCAN] Section Options</title> | |
991 | <para>The <literal>[VXCAN]</literal> section only applies for | |
992 | netdevs of kind <literal>vxcan</literal> and accepts the | |
993 | following key:</para> | |
994 | ||
995 | <variablelist class='network-directives'> | |
996 | <varlistentry> | |
997 | <term><varname>Peer=</varname></term> | |
998 | <listitem> | |
999 | <para>The peer interface name used when creating the netdev. | |
1000 | This option is compulsory.</para> | |
1001 | </listitem> | |
1002 | </varlistentry> | |
1003 | </variablelist> | |
1004 | </refsect1> | |
1005 | <refsect1> | |
1006 | <title>[Tun] Section Options</title> | |
1007 | ||
1008 | <para>The <literal>[Tun]</literal> section only applies for | |
1009 | netdevs of kind <literal>tun</literal>, and accepts the following | |
1010 | keys:</para> | |
1011 | ||
1012 | <variablelist class='network-directives'> | |
1013 | <varlistentry> | |
1014 | <term><varname>OneQueue=</varname></term> | |
1015 | <listitem><para>Takes a boolean argument. Configures whether | |
1016 | all packets are queued at the device (enabled), or a fixed | |
1017 | number of packets are queued at the device and the rest at the | |
1018 | <literal>qdisc</literal>. Defaults to | |
1019 | <literal>no</literal>.</para> | |
1020 | </listitem> | |
1021 | </varlistentry> | |
1022 | <varlistentry> | |
1023 | <term><varname>MultiQueue=</varname></term> | |
1024 | <listitem><para>Takes a boolean argument. Configures whether | |
1025 | to use multiple file descriptors (queues) to parallelize | |
1026 | packets sending and receiving. Defaults to | |
1027 | <literal>no</literal>.</para> | |
1028 | </listitem> | |
1029 | </varlistentry> | |
1030 | <varlistentry> | |
1031 | <term><varname>PacketInfo=</varname></term> | |
1032 | <listitem><para>Takes a boolean argument. Configures whether | |
1033 | packets should be prepended with four extra bytes (two flag | |
1034 | bytes and two protocol bytes). If disabled, it indicates that | |
1035 | the packets will be pure IP packets. Defaults to | |
1036 | <literal>no</literal>.</para> | |
1037 | </listitem> | |
1038 | </varlistentry> | |
1039 | <varlistentry> | |
1040 | <term><varname>VNetHeader=</varname></term> | |
1041 | <listitem><para>Takes a boolean argument. Configures | |
1042 | IFF_VNET_HDR flag for a tap device. It allows sending | |
1043 | and receiving larger Generic Segmentation Offload (GSO) | |
1044 | packets. This may increase throughput significantly. | |
1045 | Defaults to | |
1046 | <literal>no</literal>.</para> | |
1047 | </listitem> | |
1048 | </varlistentry> | |
1049 | <varlistentry> | |
1050 | <term><varname>User=</varname></term> | |
1051 | <listitem><para>User to grant access to the | |
1052 | <filename>/dev/net/tun</filename> device.</para> | |
1053 | </listitem> | |
1054 | </varlistentry> | |
1055 | <varlistentry> | |
1056 | <term><varname>Group=</varname></term> | |
1057 | <listitem><para>Group to grant access to the | |
1058 | <filename>/dev/net/tun</filename> device.</para> | |
1059 | </listitem> | |
1060 | </varlistentry> | |
1061 | ||
1062 | </variablelist> | |
1063 | ||
1064 | </refsect1> | |
1065 | ||
1066 | <refsect1> | |
1067 | <title>[Tap] Section Options</title> | |
1068 | ||
1069 | <para>The <literal>[Tap]</literal> section only applies for | |
1070 | netdevs of kind <literal>tap</literal>, and accepts the same keys | |
1071 | as the <literal>[Tun]</literal> section.</para> | |
1072 | </refsect1> | |
1073 | ||
1074 | <refsect1> | |
1075 | <title>[WireGuard] Section Options</title> | |
1076 | ||
1077 | <para>The <literal>[WireGuard]</literal> section accepts the following | |
1078 | keys:</para> | |
1079 | ||
1080 | <variablelist class='network-directives'> | |
1081 | <varlistentry> | |
1082 | <term><varname>PrivateKey=</varname></term> | |
1083 | <listitem> | |
1084 | <para>The Base64 encoded private key for the interface. It can be | |
1085 | generated using the <command>wg genkey</command> command | |
1086 | (see <citerefentry project="wireguard"><refentrytitle>wg</refentrytitle><manvolnum>8</manvolnum></citerefentry>). | |
1087 | This option is mandatory to use WireGuard. | |
1088 | Note that because this information is secret, you may want to set | |
1089 | the permissions of the .netdev file to be owned by <literal>root:systemd-network</literal> | |
1090 | with a <literal>0640</literal> file mode.</para> | |
1091 | </listitem> | |
1092 | </varlistentry> | |
1093 | <varlistentry> | |
1094 | <term><varname>ListenPort=</varname></term> | |
1095 | <listitem> | |
1096 | <para>Sets UDP port for listening. Takes either value between 1 and 65535 | |
1097 | or <literal>auto</literal>. If <literal>auto</literal> is specified, | |
1098 | the port is automatically generated based on interface name. | |
1099 | Defaults to <literal>auto</literal>.</para> | |
1100 | </listitem> | |
1101 | </varlistentry> | |
1102 | <varlistentry> | |
1103 | <term><varname>FwMark=</varname></term> | |
1104 | <listitem> | |
1105 | <para>Sets a firewall mark on outgoing WireGuard packets from this interface.</para> | |
1106 | </listitem> | |
1107 | </varlistentry> | |
1108 | </variablelist> | |
1109 | </refsect1> | |
1110 | ||
1111 | <refsect1> | |
1112 | <title>[WireGuardPeer] Section Options</title> | |
1113 | ||
1114 | <para>The <literal>[WireGuardPeer]</literal> section accepts the following | |
1115 | keys:</para> | |
1116 | ||
1117 | <variablelist class='network-directives'> | |
1118 | <varlistentry> | |
1119 | <term><varname>PublicKey=</varname></term> | |
1120 | <listitem> | |
1121 | <para>Sets a Base64 encoded public key calculated by <command>wg pubkey</command> | |
1122 | (see <citerefentry project="wireguard"><refentrytitle>wg</refentrytitle><manvolnum>8</manvolnum></citerefentry>) | |
1123 | from a private key, and usually transmitted out of band to the | |
1124 | author of the configuration file. This option is mandatory for this | |
1125 | section.</para> | |
1126 | </listitem> | |
1127 | </varlistentry> | |
1128 | <varlistentry> | |
1129 | <term><varname>PresharedKey=</varname></term> | |
1130 | <listitem> | |
1131 | <para>Optional preshared key for the interface. It can be generated | |
1132 | by the <command>wg genpsk</command> command. This option adds an | |
1133 | additional layer of symmetric-key cryptography to be mixed into the | |
1134 | already existing public-key cryptography, for post-quantum | |
1135 | resistance. | |
1136 | Note that because this information is secret, you may want to set | |
1137 | the permissions of the .netdev file to be owned by <literal>root:systemd-networkd</literal> | |
1138 | with a <literal>0640</literal> file mode.</para> | |
1139 | </listitem> | |
1140 | </varlistentry> | |
1141 | <varlistentry> | |
1142 | <term><varname>AllowedIPs=</varname></term> | |
1143 | <listitem> | |
1144 | <para>Sets a comma-separated list of IP (v4 or v6) addresses with CIDR masks | |
1145 | from which this peer is allowed to send incoming traffic and to | |
1146 | which outgoing traffic for this peer is directed. The catch-all | |
1147 | 0.0.0.0/0 may be specified for matching all IPv4 addresses, and | |
1148 | ::/0 may be specified for matching all IPv6 addresses. </para> | |
1149 | </listitem> | |
1150 | </varlistentry> | |
1151 | <varlistentry> | |
1152 | <term><varname>Endpoint=</varname></term> | |
1153 | <listitem> | |
1154 | <para>Sets an endpoint IP address or hostname, followed by a colon, and then | |
1155 | a port number. This endpoint will be updated automatically once to | |
1156 | the most recent source IP address and port of correctly | |
1157 | authenticated packets from the peer at configuration time.</para> | |
1158 | </listitem> | |
1159 | </varlistentry> | |
1160 | <varlistentry> | |
1161 | <term><varname>PersistentKeepalive=</varname></term> | |
1162 | <listitem> | |
1163 | <para>Sets a seconds interval, between 1 and 65535 inclusive, of how often | |
1164 | to send an authenticated empty packet to the peer for the purpose | |
1165 | of keeping a stateful firewall or NAT mapping valid persistently. | |
1166 | For example, if the interface very rarely sends traffic, but it | |
1167 | might at anytime receive traffic from a peer, and it is behind NAT, | |
1168 | the interface might benefit from having a persistent keepalive | |
1169 | interval of 25 seconds. If set to 0 or "off", this option is | |
1170 | disabled. By default or when unspecified, this option is off. | |
1171 | Most users will not need this.</para> | |
1172 | </listitem> | |
1173 | </varlistentry> | |
1174 | </variablelist> | |
1175 | </refsect1> | |
1176 | ||
1177 | <refsect1> | |
1178 | <title>[Bond] Section Options</title> | |
1179 | ||
1180 | <para>The <literal>[Bond]</literal> section accepts the following | |
1181 | key:</para> | |
1182 | ||
1183 | <variablelist class='network-directives'> | |
1184 | <varlistentry> | |
1185 | <term><varname>Mode=</varname></term> | |
1186 | <listitem> | |
1187 | <para>Specifies one of the bonding policies. The default is | |
1188 | <literal>balance-rr</literal> (round robin). Possible values are | |
1189 | <literal>balance-rr</literal>, | |
1190 | <literal>active-backup</literal>, | |
1191 | <literal>balance-xor</literal>, | |
1192 | <literal>broadcast</literal>, | |
1193 | <literal>802.3ad</literal>, | |
1194 | <literal>balance-tlb</literal>, and | |
1195 | <literal>balance-alb</literal>. | |
1196 | </para> | |
1197 | </listitem> | |
1198 | </varlistentry> | |
1199 | ||
1200 | <varlistentry> | |
1201 | <term><varname>TransmitHashPolicy=</varname></term> | |
1202 | <listitem> | |
1203 | <para>Selects the transmit hash policy to use for slave | |
1204 | selection in balance-xor, 802.3ad, and tlb modes. Possible | |
1205 | values are | |
1206 | <literal>layer2</literal>, | |
1207 | <literal>layer3+4</literal>, | |
1208 | <literal>layer2+3</literal>, | |
1209 | <literal>encap2+3</literal>, and | |
1210 | <literal>encap3+4</literal>. | |
1211 | </para> | |
1212 | </listitem> | |
1213 | </varlistentry> | |
1214 | ||
1215 | <varlistentry> | |
1216 | <term><varname>LACPTransmitRate=</varname></term> | |
1217 | <listitem> | |
1218 | <para>Specifies the rate with which link partner transmits | |
1219 | Link Aggregation Control Protocol Data Unit packets in | |
1220 | 802.3ad mode. Possible values are <literal>slow</literal>, | |
1221 | which requests partner to transmit LACPDUs every 30 seconds, | |
1222 | and <literal>fast</literal>, which requests partner to | |
1223 | transmit LACPDUs every second. The default value is | |
1224 | <literal>slow</literal>.</para> | |
1225 | </listitem> | |
1226 | </varlistentry> | |
1227 | ||
1228 | <varlistentry> | |
1229 | <term><varname>MIIMonitorSec=</varname></term> | |
1230 | <listitem> | |
1231 | <para>Specifies the frequency that Media Independent | |
1232 | Interface link monitoring will occur. A value of zero | |
1233 | disables MII link monitoring. This value is rounded down to | |
1234 | the nearest millisecond. The default value is 0.</para> | |
1235 | </listitem> | |
1236 | </varlistentry> | |
1237 | ||
1238 | <varlistentry> | |
1239 | <term><varname>UpDelaySec=</varname></term> | |
1240 | <listitem> | |
1241 | <para>Specifies the delay before a link is enabled after a | |
1242 | link up status has been detected. This value is rounded down | |
1243 | to a multiple of MIIMonitorSec. The default value is | |
1244 | 0.</para> | |
1245 | </listitem> | |
1246 | </varlistentry> | |
1247 | ||
1248 | <varlistentry> | |
1249 | <term><varname>DownDelaySec=</varname></term> | |
1250 | <listitem> | |
1251 | <para>Specifies the delay before a link is disabled after a | |
1252 | link down status has been detected. This value is rounded | |
1253 | down to a multiple of MIIMonitorSec. The default value is | |
1254 | 0.</para> | |
1255 | </listitem> | |
1256 | </varlistentry> | |
1257 | ||
1258 | <varlistentry> | |
1259 | <term><varname>LearnPacketIntervalSec=</varname></term> | |
1260 | <listitem> | |
1261 | <para>Specifies the number of seconds between instances where the bonding | |
1262 | driver sends learning packets to each slave peer switch. | |
1263 | The valid range is 1–0x7fffffff; the default value is 1. This option | |
1264 | has an effect only for the balance-tlb and balance-alb modes.</para> | |
1265 | </listitem> | |
1266 | </varlistentry> | |
1267 | ||
1268 | <varlistentry> | |
1269 | <term><varname>AdSelect=</varname></term> | |
1270 | <listitem> | |
1271 | <para>Specifies the 802.3ad aggregation selection logic to use. Possible values are | |
1272 | <literal>stable</literal>, | |
1273 | <literal>bandwidth</literal> and | |
1274 | <literal>count</literal>. | |
1275 | </para> | |
1276 | </listitem> | |
1277 | </varlistentry> | |
1278 | ||
1279 | <varlistentry> | |
1280 | <term><varname>AdActorSystemPriority=</varname></term> | |
1281 | <listitem> | |
1282 | <para>Specifies the 802.3ad actor system priority. Ranges [1-65535].</para> | |
1283 | </listitem> | |
1284 | </varlistentry> | |
1285 | ||
1286 | <varlistentry> | |
1287 | <term><varname>AdUserPortKey=</varname></term> | |
1288 | <listitem> | |
1289 | <para>Specifies the 802.3ad user defined portion of the port key. Ranges [0-1023].</para> | |
1290 | </listitem> | |
1291 | </varlistentry> | |
1292 | ||
1293 | <varlistentry> | |
1294 | <term><varname>AdActorSystem=</varname></term> | |
1295 | <listitem> | |
1296 | <para>Specifies the 802.3ad system mac address. This can not be either NULL or Multicast.</para> | |
1297 | </listitem> | |
1298 | </varlistentry> | |
1299 | ||
1300 | <varlistentry> | |
1301 | <term><varname>FailOverMACPolicy=</varname></term> | |
1302 | <listitem> | |
1303 | <para>Specifies whether the active-backup mode should set all slaves to | |
1304 | the same MAC address at the time of enslavement or, when enabled, to perform special handling of the | |
1305 | bond's MAC address in accordance with the selected policy. The default policy is none. | |
1306 | Possible values are | |
1307 | <literal>none</literal>, | |
1308 | <literal>active</literal> and | |
1309 | <literal>follow</literal>. | |
1310 | </para> | |
1311 | </listitem> | |
1312 | </varlistentry> | |
1313 | ||
1314 | <varlistentry> | |
1315 | <term><varname>ARPValidate=</varname></term> | |
1316 | <listitem> | |
1317 | <para>Specifies whether or not ARP probes and replies should be | |
1318 | validated in any mode that supports ARP monitoring, or whether | |
1319 | non-ARP traffic should be filtered (disregarded) for link | |
1320 | monitoring purposes. Possible values are | |
1321 | <literal>none</literal>, | |
1322 | <literal>active</literal>, | |
1323 | <literal>backup</literal> and | |
1324 | <literal>all</literal>. | |
1325 | </para> | |
1326 | </listitem> | |
1327 | </varlistentry> | |
1328 | ||
1329 | <varlistentry> | |
1330 | <term><varname>ARPIntervalSec=</varname></term> | |
1331 | <listitem> | |
1332 | <para>Specifies the ARP link monitoring frequency in milliseconds. | |
1333 | A value of 0 disables ARP monitoring. The default value is 0. | |
1334 | </para> | |
1335 | </listitem> | |
1336 | </varlistentry> | |
1337 | ||
1338 | <varlistentry> | |
1339 | <term><varname>ARPIPTargets=</varname></term> | |
1340 | <listitem> | |
1341 | <para>Specifies the IP addresses to use as ARP monitoring peers when | |
1342 | ARPIntervalSec is greater than 0. These are the targets of the ARP request | |
1343 | sent to determine the health of the link to the targets. | |
1344 | Specify these values in IPv4 dotted decimal format. At least one IP | |
1345 | address must be given for ARP monitoring to function. The | |
1346 | maximum number of targets that can be specified is 16. The | |
1347 | default value is no IP addresses. | |
1348 | </para> | |
1349 | </listitem> | |
1350 | </varlistentry> | |
1351 | ||
1352 | <varlistentry> | |
1353 | <term><varname>ARPAllTargets=</varname></term> | |
1354 | <listitem> | |
1355 | <para>Specifies the quantity of ARPIPTargets that must be reachable | |
1356 | in order for the ARP monitor to consider a slave as being up. | |
1357 | This option affects only active-backup mode for slaves with | |
1358 | ARPValidate enabled. Possible values are | |
1359 | <literal>any</literal> and | |
1360 | <literal>all</literal>. | |
1361 | </para> | |
1362 | </listitem> | |
1363 | </varlistentry> | |
1364 | ||
1365 | <varlistentry> | |
1366 | <term><varname>PrimaryReselectPolicy=</varname></term> | |
1367 | <listitem> | |
1368 | <para>Specifies the reselection policy for the primary slave. This | |
1369 | affects how the primary slave is chosen to become the active slave | |
1370 | when failure of the active slave or recovery of the primary slave | |
1371 | occurs. This option is designed to prevent flip-flopping between | |
1372 | the primary slave and other slaves. Possible values are | |
1373 | <literal>always</literal>, | |
1374 | <literal>better</literal> and | |
1375 | <literal>failure</literal>. | |
1376 | </para> | |
1377 | </listitem> | |
1378 | </varlistentry> | |
1379 | ||
1380 | <varlistentry> | |
1381 | <term><varname>ResendIGMP=</varname></term> | |
1382 | <listitem> | |
1383 | <para>Specifies the number of IGMP membership reports to be issued after | |
1384 | a failover event. One membership report is issued immediately after | |
1385 | the failover, subsequent packets are sent in each 200ms interval. | |
1386 | The valid range is 0–255. Defaults to 1. A value of 0 | |
1387 | prevents the IGMP membership report from being issued in response | |
1388 | to the failover event. | |
1389 | </para> | |
1390 | </listitem> | |
1391 | </varlistentry> | |
1392 | ||
1393 | <varlistentry> | |
1394 | <term><varname>PacketsPerSlave=</varname></term> | |
1395 | <listitem> | |
1396 | <para>Specify the number of packets to transmit through a slave before | |
1397 | moving to the next one. When set to 0, then a slave is chosen at | |
1398 | random. The valid range is 0–65535. Defaults to 1. This option | |
1399 | only has effect when in balance-rr mode. | |
1400 | </para> | |
1401 | </listitem> | |
1402 | </varlistentry> | |
1403 | ||
1404 | <varlistentry> | |
1405 | <term><varname>GratuitousARP=</varname></term> | |
1406 | <listitem> | |
1407 | <para>Specify the number of peer notifications (gratuitous ARPs and | |
1408 | unsolicited IPv6 Neighbor Advertisements) to be issued after a | |
1409 | failover event. As soon as the link is up on the new slave, | |
1410 | a peer notification is sent on the bonding device and each | |
1411 | VLAN sub-device. This is repeated at each link monitor interval | |
1412 | (ARPIntervalSec or MIIMonitorSec, whichever is active) if the number is | |
1413 | greater than 1. The valid range is 0–255. The default value is 1. | |
1414 | These options affect only the active-backup mode. | |
1415 | </para> | |
1416 | </listitem> | |
1417 | </varlistentry> | |
1418 | ||
1419 | <varlistentry> | |
1420 | <term><varname>AllSlavesActive=</varname></term> | |
1421 | <listitem> | |
1422 | <para>A boolean. Specifies that duplicate frames (received on inactive ports) | |
1423 | should be dropped when false, or delivered when true. Normally, bonding will drop | |
1424 | duplicate frames (received on inactive ports), which is desirable for | |
1425 | most users. But there are some times it is nice to allow duplicate | |
1426 | frames to be delivered. The default value is false (drop duplicate frames | |
1427 | received on inactive ports). | |
1428 | </para> | |
1429 | </listitem> | |
1430 | </varlistentry> | |
1431 | ||
1432 | <varlistentry> | |
1433 | <term><varname>MinLinks=</varname></term> | |
1434 | <listitem> | |
1435 | <para>Specifies the minimum number of links that must be active before | |
1436 | asserting carrier. The default value is 0. | |
1437 | </para> | |
1438 | </listitem> | |
1439 | </varlistentry> | |
1440 | </variablelist> | |
1441 | ||
1442 | <para>For more detail information see | |
1443 | <ulink url="https://www.kernel.org/doc/Documentation/networking/bonding.txt"> | |
1444 | Linux Ethernet Bonding Driver HOWTO</ulink></para> | |
1445 | ||
1446 | </refsect1> | |
1447 | ||
1448 | <refsect1> | |
1449 | <title>Examples</title> | |
1450 | <example> | |
1451 | <title>/etc/systemd/network/25-bridge.netdev</title> | |
1452 | ||
1453 | <programlisting>[NetDev] | |
1454 | Name=bridge0 | |
1455 | Kind=bridge</programlisting> | |
1456 | </example> | |
1457 | ||
1458 | <example> | |
1459 | <title>/etc/systemd/network/25-vlan1.netdev</title> | |
1460 | ||
1461 | <programlisting>[Match] | |
1462 | Virtualization=no | |
1463 | ||
1464 | [NetDev] | |
1465 | Name=vlan1 | |
1466 | Kind=vlan | |
1467 | ||
1468 | [VLAN] | |
1469 | Id=1</programlisting> | |
1470 | </example> | |
1471 | <example> | |
1472 | <title>/etc/systemd/network/25-ipip.netdev</title> | |
1473 | <programlisting>[NetDev] | |
1474 | Name=ipip-tun | |
1475 | Kind=ipip | |
1476 | MTUBytes=1480 | |
1477 | ||
1478 | [Tunnel] | |
1479 | Local=192.168.223.238 | |
1480 | Remote=192.169.224.239 | |
1481 | TTL=64</programlisting> | |
1482 | </example> | |
1483 | <example> | |
1484 | <title>/etc/systemd/network/1-fou-tunnel.netdev</title> | |
1485 | <programlisting>[NetDev] | |
1486 | Name=fou-tun | |
1487 | Kind=fou | |
1488 | ||
1489 | [FooOverUDP] | |
1490 | Port=5555 | |
1491 | Protocol=4 | |
1492 | </programlisting> | |
1493 | </example> | |
1494 | <example> | |
1495 | <title>/etc/systemd/network/25-fou-ipip.netdev</title> | |
1496 | <programlisting>[NetDev] | |
1497 | Name=ipip-tun | |
1498 | Kind=ipip | |
1499 | ||
1500 | [Tunnel] | |
1501 | Independent=yes | |
1502 | Local=10.65.208.212 | |
1503 | Remote=10.65.208.211 | |
1504 | FooOverUDP=yes | |
1505 | FOUDestinationPort=5555 | |
1506 | </programlisting> | |
1507 | </example> | |
1508 | <example> | |
1509 | <title>/etc/systemd/network/25-tap.netdev</title> | |
1510 | <programlisting>[NetDev] | |
1511 | Name=tap-test | |
1512 | Kind=tap | |
1513 | ||
1514 | [Tap] | |
1515 | MultiQueue=yes | |
1516 | PacketInfo=yes</programlisting> </example> | |
1517 | ||
1518 | <example> | |
1519 | <title>/etc/systemd/network/25-sit.netdev</title> | |
1520 | <programlisting>[NetDev] | |
1521 | Name=sit-tun | |
1522 | Kind=sit | |
1523 | MTUBytes=1480 | |
1524 | ||
1525 | [Tunnel] | |
1526 | Local=10.65.223.238 | |
1527 | Remote=10.65.223.239</programlisting> | |
1528 | </example> | |
1529 | ||
1530 | <example> | |
1531 | <title>/etc/systemd/network/25-6rd.netdev</title> | |
1532 | <programlisting>[NetDev] | |
1533 | Name=6rd-tun | |
1534 | Kind=sit | |
1535 | MTUBytes=1480 | |
1536 | ||
1537 | [Tunnel] | |
1538 | Local=10.65.223.238 | |
1539 | IPv6RapidDeploymentPrefix=2602::/24</programlisting> | |
1540 | </example> | |
1541 | ||
1542 | <example> | |
1543 | <title>/etc/systemd/network/25-gre.netdev</title> | |
1544 | <programlisting>[NetDev] | |
1545 | Name=gre-tun | |
1546 | Kind=gre | |
1547 | MTUBytes=1480 | |
1548 | ||
1549 | [Tunnel] | |
1550 | Local=10.65.223.238 | |
1551 | Remote=10.65.223.239</programlisting> | |
1552 | </example> | |
1553 | ||
1554 | <example> | |
1555 | <title>/etc/systemd/network/25-vti.netdev</title> | |
1556 | ||
1557 | <programlisting>[NetDev] | |
1558 | Name=vti-tun | |
1559 | Kind=vti | |
1560 | MTUBytes=1480 | |
1561 | ||
1562 | [Tunnel] | |
1563 | Local=10.65.223.238 | |
1564 | Remote=10.65.223.239</programlisting> | |
1565 | </example> | |
1566 | ||
1567 | <example> | |
1568 | <title>/etc/systemd/network/25-veth.netdev</title> | |
1569 | <programlisting>[NetDev] | |
1570 | Name=veth-test | |
1571 | Kind=veth | |
1572 | ||
1573 | [Peer] | |
1574 | Name=veth-peer</programlisting> | |
1575 | </example> | |
1576 | ||
1577 | <example> | |
1578 | <title>/etc/systemd/network/25-bond.netdev</title> | |
1579 | <programlisting>[NetDev] | |
1580 | Name=bond1 | |
1581 | Kind=bond | |
1582 | ||
1583 | [Bond] | |
1584 | Mode=802.3ad | |
1585 | TransmitHashPolicy=layer3+4 | |
1586 | MIIMonitorSec=1s | |
1587 | LACPTransmitRate=fast | |
1588 | </programlisting> | |
1589 | </example> | |
1590 | ||
1591 | <example> | |
1592 | <title>/etc/systemd/network/25-dummy.netdev</title> | |
1593 | <programlisting>[NetDev] | |
1594 | Name=dummy-test | |
1595 | Kind=dummy | |
1596 | MACAddress=12:34:56:78:9a:bc</programlisting> | |
1597 | </example> | |
1598 | <example> | |
1599 | <title>/etc/systemd/network/25-vrf.netdev</title> | |
1600 | <para>Create a VRF interface with table 42.</para> | |
1601 | <programlisting>[NetDev] | |
1602 | Name=vrf-test | |
1603 | Kind=vrf | |
1604 | ||
1605 | [VRF] | |
1606 | Table=42</programlisting> | |
1607 | </example> | |
1608 | ||
1609 | <example> | |
1610 | <title>/etc/systemd/network/25-macvtap.netdev</title> | |
1611 | <para>Create a MacVTap device.</para> | |
1612 | <programlisting>[NetDev] | |
1613 | Name=macvtap-test | |
1614 | Kind=macvtap | |
1615 | </programlisting> | |
1616 | </example> | |
1617 | <example> | |
1618 | <title>/etc/systemd/network/25-wireguard.netdev</title> | |
1619 | <programlisting>[NetDev] | |
1620 | Name=wg0 | |
1621 | Kind=wireguard | |
1622 | ||
1623 | [WireGuard] | |
1624 | PrivateKey=EEGlnEPYJV//kbvvIqxKkQwOiS+UENyPncC4bF46ong= | |
1625 | ListenPort=51820 | |
1626 | ||
1627 | [WireGuardPeer] | |
1628 | PublicKey=RDf+LSpeEre7YEIKaxg+wbpsNV7du+ktR99uBEtIiCA= | |
1629 | AllowedIPs=fd31:bf08:57cb::/48,192.168.26.0/24 | |
1630 | Endpoint=wireguard.example.com:51820</programlisting> | |
1631 | </example> | |
1632 | </refsect1> | |
1633 | <refsect1> | |
1634 | <title>See Also</title> | |
1635 | <para> | |
1636 | <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>, | |
1637 | <citerefentry><refentrytitle>systemd-networkd</refentrytitle><manvolnum>8</manvolnum></citerefentry>, | |
1638 | <citerefentry><refentrytitle>systemd.link</refentrytitle><manvolnum>5</manvolnum></citerefentry>, | |
1639 | <citerefentry><refentrytitle>systemd.network</refentrytitle><manvolnum>5</manvolnum></citerefentry> | |
1640 | </para> | |
1641 | </refsect1> | |
1642 | ||
1643 | </refentry> |