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Commit | Line | Data |
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77987911 | 1 | .TH IP\-LINK 8 "13 Dec 2012" "iproute2" "Linux" |
761a1e60 CT |
2 | .SH "NAME" |
3 | ip-link \- network device configuration | |
4 | .SH "SYNOPSIS" | |
5 | .sp | |
6 | .ad l | |
7 | .in +8 | |
8 | .ti -8 | |
9 | .B ip | |
10 | .RI "[ " OPTIONS " ]" | |
11 | .B link | |
12 | .RI " { " COMMAND " | " | |
13 | .BR help " }" | |
14 | .sp | |
15 | ||
16 | .ti -8 | |
17 | .IR OPTIONS " := { " | |
18 | \fB\-V\fR[\fIersion\fR] | | |
19 | \fB\-s\fR[\fItatistics\fR] | | |
20 | \fB\-r\fR[\fIesolve\fR] | | |
21 | \fB\-f\fR[\fIamily\fR] { | |
22 | .BR inet " | " inet6 " | " ipx " | " dnet " | " link " } | " | |
23 | \fB\-o\fR[\fIneline\fR] } | |
24 | ||
25 | .ti -8 | |
9fc56974 AH |
26 | .BI "ip link add" |
27 | .RB "[ " link | |
28 | .IR DEVICE " ]" | |
761a1e60 CT |
29 | .RB "[ " name " ]" |
30 | .I NAME | |
31 | .br | |
32 | .RB "[ " txqueuelen | |
33 | .IR PACKETS " ]" | |
34 | .br | |
35 | .RB "[ " address | |
36 | .IR LLADDR " ]" | |
37 | .RB "[ " broadcast | |
38 | .IR LLADDR " ]" | |
39 | .br | |
40 | .RB "[ " mtu | |
41 | .IR MTU " ]" | |
4de8d885 PE |
42 | .RB "[ " index |
43 | .IR IDX " ]" | |
761a1e60 | 44 | .br |
d992f3e6 JP |
45 | .RB "[ " numtxqueues |
46 | .IR QUEUE_COUNT " ]" | |
47 | .RB "[ " numrxqueues | |
48 | .IR QUEUE_COUNT " ]" | |
49 | .br | |
761a1e60 CT |
50 | .BR type " TYPE" |
51 | .RI "[ " ARGS " ]" | |
52 | ||
53 | .ti -8 | |
54 | .IR TYPE " := [ " | |
f1a6f4e9 | 55 | .BR bridge " | " |
cc26a890 | 56 | .BR bond " ]" |
f1a6f4e9 SH |
57 | .BR can " | " |
58 | .BR dummy " | " | |
5c0aec93 | 59 | .BR hsr " | " |
f1a6f4e9 SH |
60 | .BR ifb " | " |
61 | .BR ipoib " |" | |
62 | .BR macvlan " | " | |
63 | .BR vcan " | " | |
64 | .BR veth " | " | |
65 | .BR vlan " | " | |
77987911 ND |
66 | .BR vxlan " |" |
67 | .BR ip6tnl " |" | |
68 | .BR ipip " |" | |
9abde37c | 69 | .BR sit " |" |
70 | .BR gre " |" | |
71 | .BR gretap " |" | |
72 | .BR ip6gre " |" | |
73 | .BR ip6gretap " ]" | |
761a1e60 CT |
74 | |
75 | .ti -8 | |
76 | .BI "ip link delete " DEVICE | |
77 | .BI type " TYPE" | |
78 | .RI "[ " ARGS " ]" | |
79 | ||
80 | .ti -8 | |
81 | .BR "ip link set " { | |
82 | .IR DEVICE " | " | |
83 | .BI "group " GROUP | |
84 | .RB "} { " up " | " down " | " arp " { " on " | " off " } |" | |
85 | .br | |
86 | .BR promisc " { " on " | " off " } |" | |
87 | .br | |
88 | .BR allmulticast " { " on " | " off " } |" | |
89 | .br | |
90 | .BR dynamic " { " on " | " off " } |" | |
91 | .br | |
92 | .BR multicast " { " on " | " off " } |" | |
93 | .br | |
94 | .B txqueuelen | |
95 | .IR PACKETS " |" | |
96 | .br | |
97 | .B name | |
98 | .IR NEWNAME " |" | |
99 | .br | |
100 | .B address | |
101 | .IR LLADDR " |" | |
102 | .B broadcast | |
103 | .IR LLADDR " |" | |
104 | .br | |
105 | .B mtu | |
106 | .IR MTU " |" | |
107 | .br | |
108 | .B netns | |
109 | .IR PID " |" | |
110 | .br | |
111 | .B netns | |
112 | .IR NETNSNAME " |" | |
113 | .br | |
114 | .B alias | |
115 | .IR NAME " |" | |
116 | .br | |
117 | .B vf | |
118 | .IR NUM " [" | |
119 | .B mac | |
120 | .IR LLADDR " ] [" | |
121 | .B vlan | |
122 | .IR VLANID " [ " | |
123 | .B qos | |
124 | .IR VLAN-QOS " ] ] [" | |
125 | .B rate | |
126 | .IR TXRATE " ] [" | |
63f60e3a OG |
127 | .B spoofchk { on | off } ] [ |
128 | .B state { auto | enable | disable} | |
761a1e60 CT |
129 | ] | |
130 | .br | |
131 | .B master | |
132 | .IR DEVICE | |
133 | .br | |
134 | .B nomaster | |
135 | .BR " }" | |
136 | ||
137 | ||
138 | .ti -8 | |
139 | .B ip link show | |
140 | .RI "[ " DEVICE " | " | |
141 | .B group | |
142 | .IR GROUP " ]" | |
143 | ||
144 | .SH "DESCRIPTION" | |
145 | .SS ip link add - add virtual link | |
146 | ||
147 | .TP | |
148 | .BI link " DEVICE " | |
149 | specifies the physical device to act operate on. | |
150 | ||
151 | .I NAME | |
152 | specifies the name of the new virtual device. | |
153 | ||
154 | .I TYPE | |
155 | specifies the type of the new device. | |
156 | .sp | |
157 | Link types: | |
158 | ||
159 | .in +8 | |
f1a6f4e9 SH |
160 | .B bridge |
161 | - Ethernet Bridge device | |
761a1e60 | 162 | .sp |
cc26a890 JP |
163 | .B bond |
164 | - Bonding device | |
165 | .sp | |
761a1e60 CT |
166 | .B dummy |
167 | - Dummy network interface | |
168 | .sp | |
169 | .B ifb | |
170 | - Intermediate Functional Block device | |
171 | .sp | |
f1a6f4e9 SH |
172 | .B ipoib |
173 | - IP over Infiniband device | |
174 | .sp | |
761a1e60 | 175 | .B macvlan |
f1a6f4e9 | 176 | - Virtual interface base on link layer address (MAC) |
761a1e60 | 177 | .sp |
f1a6f4e9 | 178 | .B vcan |
2b70fe15 | 179 | - Virtual Controller Area Network interface |
761a1e60 | 180 | .sp |
f1a6f4e9 SH |
181 | .B veth |
182 | - Virtual ethernet interface | |
de038993 | 183 | .sp |
f1a6f4e9 SH |
184 | .BR vlan |
185 | - 802.1q tagged virtual LAN interface | |
186 | .sp | |
187 | .BR vxlan | |
188 | - Virtual eXtended LAN | |
77987911 ND |
189 | .sp |
190 | .BR ip6tnl | |
191 | - Virtual tunnel interface IPv4|IPv6 over IPv6 | |
192 | .sp | |
193 | .BR ipip | |
194 | - Virtual tunnel interface IPv4 over IPv4 | |
195 | .sp | |
196 | .BR sit | |
197 | - Virtual tunnel interface IPv6 over IPv4 | |
9abde37c | 198 | .sp |
199 | .BR gre | |
200 | - Virtual tunnel interface GRE over IPv4 | |
201 | .sp | |
202 | .BR gretap | |
203 | - Virtual L2 tuunel interface GRE over IPv4 | |
204 | .sp | |
205 | .BR ip6gre | |
206 | - Virtual tuunel interface GRE over IPv6 | |
207 | .sp | |
208 | .BR ip6gretap | |
209 | - Virtual L2 tuunel interface GRE over IPv6 | |
761a1e60 CT |
210 | .in -8 |
211 | ||
d992f3e6 JP |
212 | .TP |
213 | .BI numtxqueues " QUEUE_COUNT " | |
214 | specifies the number of transmit queues for new device. | |
215 | ||
216 | .TP | |
217 | .BI numrxqueues " QUEUE_COUNT " | |
218 | specifies the number of receive queues for new device. | |
219 | ||
4de8d885 PE |
220 | .TP |
221 | .BI index " IDX " | |
222 | specifies the desired index of the new virtual device. The link creation fails, if the index is busy. | |
223 | ||
2816a568 TR |
224 | .TP |
225 | VXLAN Type Support | |
63f60e3a | 226 | For a link of type |
2816a568 TR |
227 | .I VXLAN |
228 | the following additional arguments are supported: | |
229 | ||
230 | .BI "ip link add " DEVICE | |
231 | .BI type " vxlan " id " ID | |
232 | .R " [ " | |
233 | .BI dev " PHYS_DEV " | |
7cfa3802 AW |
234 | .RB " ] [ { " group " | " remote " } " |
235 | .I IPADDR | |
2816a568 TR |
236 | .R " ] [ " |
237 | .BI local " IPADDR " | |
238 | .R " ] [ " | |
239 | .BI ttl " TTL " | |
240 | .R " ] [ " | |
241 | .BI tos " TOS " | |
242 | .R " ] [ " | |
243 | .BI port " MIN MAX " | |
244 | .R " ] [ " | |
245 | .I "[no]learning " | |
246 | .R " ] [ " | |
247 | .I "[no]proxy " | |
248 | .R " ] [ " | |
249 | .I "[no]rsc " | |
250 | .R " ] [ " | |
251 | .I "[no]l2miss " | |
252 | .R " ] [ " | |
253 | .I "[no]l3miss " | |
254 | .R " ]" | |
255 | ||
256 | .in +8 | |
257 | .sp | |
258 | .BI id " VNI " | |
259 | - specifies the VXLAN Network Identifer (or VXLAN Segment | |
260 | Identifier) to use. | |
261 | ||
262 | .BI dev " PHYS_DEV" | |
263 | - specifies the physical device to use for tunnel endpoint communication. | |
264 | ||
265 | .sp | |
266 | .BI group " IPADDR" | |
267 | - specifies the multicast IP address to join. | |
7cfa3802 AW |
268 | This parameter cannot be specified with the |
269 | .B remote | |
270 | parameter. | |
271 | ||
272 | .sp | |
273 | .BI remote " IPADDR" | |
274 | - specifies the unicast destination IP address to use in outgoing packets | |
275 | when the destination link layer address is not known in the VXLAN device | |
276 | forwarding database. This parameter cannot be specified with the | |
277 | .B group | |
278 | parameter. | |
2816a568 TR |
279 | |
280 | .sp | |
281 | .BI local " IPADDR" | |
282 | - specifies the source IP address to use in outgoing packets. | |
283 | ||
284 | .sp | |
285 | .BI ttl " TTL" | |
286 | - specifies the TTL value to use in outgoing packets. | |
287 | ||
288 | .sp | |
289 | .BI tos " TOS" | |
290 | - specifies the TOS value to use in outgoing packets. | |
291 | ||
292 | .sp | |
293 | .BI port " MIN MAX" | |
294 | - specifies the range of port numbers to use as UDP | |
295 | source ports to communicate to the remote VXLAN tunnel endpoint. | |
296 | ||
297 | .sp | |
298 | .I [no]learning | |
299 | - specifies if unknown source link layer addresses and IP addresses | |
300 | are entered into the VXLAN device forwarding database. | |
301 | ||
302 | .sp | |
303 | .I [no]rsc | |
304 | - specifies if route short circuit is turned on. | |
305 | ||
306 | .sp | |
307 | .I [no]proxy | |
308 | - specifies ARP proxy is turned on. | |
309 | ||
310 | .sp | |
311 | .I [no]l2miss | |
312 | - specifies if netlink LLADDR miss notifications are generated. | |
313 | ||
314 | .sp | |
315 | .I [no]l3miss | |
316 | - specifies if netlink IP ADDR miss notifications are generated. | |
317 | ||
318 | .in -8 | |
319 | ||
9abde37c | 320 | .TP |
321 | IP6GRE/IP6GRETAP Type Support | |
63f60e3a | 322 | For a link of type |
9abde37c | 323 | .I IP6GRE/IP6GRETAP |
324 | the following additional arguments are supported: | |
325 | ||
326 | .BI "ip link add " DEVICE | |
327 | .BI type " { ip6gre | ip6gretap } " remote " ADDR " local " ADDR | |
328 | .R " [ " | |
329 | .I "[i|o]seq]" | |
330 | .R " ] [ " | |
331 | .I "[i|o]key" KEY | |
332 | .R " ] [ " | |
333 | .I " [i|o]csum " | |
334 | .R " ] [ " | |
335 | .BI hoplimit " TTL " | |
336 | .R " ] [ " | |
337 | .BI encaplimit " ELIM " | |
338 | .R " ] [ " | |
339 | .BI tclass " TCLASS " | |
340 | .R " ] [ " | |
341 | .BI flowlabel " FLOWLABEL " | |
342 | .R " ] [ " | |
343 | .BI "dscp inherit" | |
344 | .R " ] [ " | |
345 | .BI dev " PHYS_DEV " | |
346 | .R " ]" | |
347 | ||
348 | .in +8 | |
349 | .sp | |
350 | .BI remote " ADDR " | |
351 | - specifies the remote IPv6 address of the tunnel. | |
352 | ||
353 | .sp | |
354 | .BI local " ADDR " | |
355 | - specifies the fixed local IPv6 address for tunneled packets. | |
356 | It must be and address on another interface on this host. | |
357 | ||
358 | .sp | |
359 | .BI [i|o]seq | |
360 | - serialize packets. | |
361 | The | |
362 | .B oseq | |
363 | flag enables sequencing of outgoing packets. | |
364 | The | |
365 | .B iseq | |
366 | flag requires that all input packets are serialized. | |
367 | ||
368 | .sp | |
369 | .BI [i|o]key " KEY" | |
370 | - use keyed GRE with key | |
371 | .IR KEY ". "KEY | |
372 | is either a number or an IPv4 address-like dotted quad. | |
373 | The | |
374 | .B key | |
375 | parameter specifies the same key to use in both directions. | |
376 | The | |
377 | .BR ikey " and " okey | |
378 | parameters specify different keys for input and output. | |
379 | ||
380 | .sp | |
381 | .BI [i|o]csum | |
382 | - generate/require checksums for tunneled packets. | |
383 | The | |
384 | .B ocsum | |
385 | flag calculates checksums for outgoing packets. | |
386 | The | |
387 | .B icsum | |
388 | flag requires that all input packets have the correct | |
389 | checksum. The | |
390 | .B csum | |
391 | flag is equivalent to the combination | |
392 | .BR "icsum ocsum" . | |
393 | ||
394 | .sp | |
395 | .BI hoplimit " TTL" | |
396 | - specifies Hop Limit value to use in outgoing packets. | |
397 | ||
398 | .sp | |
399 | .BI encaplimit " ELIM" | |
400 | - specifies a fixed encapsulation limit. Default is 4. | |
401 | ||
402 | .sp | |
403 | .BI flowlabel " FLOWLABEL" | |
63f60e3a | 404 | - specifies a fixed flowlabel. |
9abde37c | 405 | |
406 | .sp | |
407 | .BI tclass " TCLASS" | |
408 | - specifies the traffic class field on | |
409 | tunneled packets, which can be specified as either a two-digit | |
410 | hex value (e.g. c0) or a predefined string (e.g. internet). | |
411 | The value | |
412 | .B inherit | |
413 | causes the field to be copied from the original IP header. The | |
414 | values | |
415 | .BI "inherit/" STRING | |
416 | or | |
417 | .BI "inherit/" 00 ".." ff | |
418 | will set the field to | |
419 | .I STRING | |
420 | or | |
421 | .IR 00 ".." ff | |
422 | when tunneling non-IP packets. The default value is 00. | |
423 | ||
424 | .in -8 | |
425 | ||
761a1e60 CT |
426 | .SS ip link delete - delete virtual link |
427 | .I DEVICE | |
428 | specifies the virtual device to act operate on. | |
429 | .I TYPE | |
430 | specifies the type of the device. | |
431 | ||
432 | ||
433 | .TP | |
434 | .BI dev " DEVICE " | |
435 | specifies the physical device to act operate on. | |
436 | ||
437 | .SS ip link set - change device attributes | |
438 | ||
439 | .TP | |
440 | .BI dev " DEVICE " | |
441 | .I DEVICE | |
6274b0b7 | 442 | specifies network device to operate on. When configuring SR-IOV Virtual Function |
761a1e60 CT |
443 | (VF) devices, this keyword should specify the associated Physical Function (PF) |
444 | device. | |
445 | ||
446 | .TP | |
447 | .BI group " GROUP " | |
448 | .I GROUP | |
449 | has a dual role: If both group and dev are present, then move the device to the | |
450 | specified group. If only a group is specified, then the command operates on | |
451 | all devices in that group. | |
452 | ||
453 | .TP | |
454 | .BR up " and " down | |
455 | change the state of the device to | |
456 | .B UP | |
457 | or | |
458 | .BR "DOWN" . | |
459 | ||
460 | .TP | |
461 | .BR "arp on " or " arp off" | |
462 | change the | |
463 | .B NOARP | |
464 | flag on the device. | |
465 | ||
466 | .TP | |
467 | .BR "multicast on " or " multicast off" | |
468 | change the | |
469 | .B MULTICAST | |
470 | flag on the device. | |
471 | ||
472 | .TP | |
473 | .BR "dynamic on " or " dynamic off" | |
474 | change the | |
475 | .B DYNAMIC | |
476 | flag on the device. | |
477 | ||
478 | .TP | |
479 | .BI name " NAME" | |
480 | change the name of the device. This operation is not | |
481 | recommended if the device is running or has some addresses | |
482 | already configured. | |
483 | ||
484 | .TP | |
485 | .BI txqueuelen " NUMBER" | |
486 | .TP | |
487 | .BI txqlen " NUMBER" | |
488 | change the transmit queue length of the device. | |
489 | ||
490 | .TP | |
491 | .BI mtu " NUMBER" | |
492 | change the | |
493 | .I MTU | |
494 | of the device. | |
495 | ||
496 | .TP | |
497 | .BI address " LLADDRESS" | |
498 | change the station address of the interface. | |
499 | ||
500 | .TP | |
501 | .BI broadcast " LLADDRESS" | |
502 | .TP | |
503 | .BI brd " LLADDRESS" | |
504 | .TP | |
505 | .BI peer " LLADDRESS" | |
506 | change the link layer broadcast address or the peer address when | |
507 | the interface is | |
508 | .IR "POINTOPOINT" . | |
509 | ||
510 | .TP | |
511 | .BI netns " PID" | |
512 | move the device to the network namespace associated with the process | |
513 | .IR "PID". | |
514 | ||
515 | .TP | |
516 | .BI netns " NETNSNAME" | |
517 | move the device to the network namespace associated with name | |
518 | .IR "NETNSNAME". | |
519 | ||
520 | .TP | |
521 | .BI alias " NAME" | |
522 | give the device a symbolic name for easy reference. | |
523 | ||
524 | .TP | |
525 | .BI group " GROUP" | |
526 | specify the group the device belongs to. | |
527 | The available groups are listed in file | |
528 | .BR "@SYSCONFDIR@/group" . | |
529 | ||
530 | .TP | |
531 | .BI vf " NUM" | |
532 | specify a Virtual Function device to be configured. The associated PF device | |
533 | must be specified using the | |
534 | .B dev | |
535 | parameter. | |
536 | ||
537 | .in +8 | |
538 | .BI mac " LLADDRESS" | |
539 | - change the station address for the specified VF. The | |
540 | .B vf | |
541 | parameter must be specified. | |
542 | ||
543 | .sp | |
544 | .BI vlan " VLANID" | |
545 | - change the assigned VLAN for the specified VF. When specified, all traffic | |
546 | sent from the VF will be tagged with the specified VLAN ID. Incoming traffic | |
547 | will be filtered for the specified VLAN ID, and will have all VLAN tags | |
548 | stripped before being passed to the VF. Setting this parameter to 0 disables | |
549 | VLAN tagging and filtering. The | |
550 | .B vf | |
551 | parameter must be specified. | |
552 | ||
553 | .sp | |
554 | .BI qos " VLAN-QOS" | |
555 | - assign VLAN QOS (priority) bits for the VLAN tag. When specified, all VLAN | |
556 | tags transmitted by the VF will include the specified priority bits in the | |
557 | VLAN tag. If not specified, the value is assumed to be 0. Both the | |
558 | .B vf | |
559 | and | |
560 | .B vlan | |
561 | parameters must be specified. Setting both | |
562 | .B vlan | |
563 | and | |
564 | .B qos | |
565 | as 0 disables VLAN tagging and filtering for the VF. | |
566 | ||
567 | .sp | |
568 | .BI rate " TXRATE" | |
569 | - change the allowed transmit bandwidth, in Mbps, for the specified VF. | |
570 | Setting this parameter to 0 disables rate limiting. The | |
571 | .B vf | |
572 | parameter must be specified. | |
573 | ||
574 | .sp | |
575 | .BI spoofchk " on|off" | |
576 | - turn packet spoof checking on or off for the specified VF. | |
63f60e3a OG |
577 | .sp |
578 | .BI state " auto|enable|disable" | |
579 | - set the virtual link state as seen by the specified VF. Setting to auto means a | |
580 | reflection of the PF link state, enable lets the VF to communicate with other VFs on | |
581 | this host even if the PF link state is down, disable causes the HW to drop any packets | |
582 | sent by the VF. | |
761a1e60 CT |
583 | .in -8 |
584 | ||
585 | .TP | |
586 | .BI master " DEVICE" | |
587 | set master device of the device (enslave device). | |
588 | ||
589 | .TP | |
590 | .BI nomaster | |
591 | unset master device of the device (release device). | |
592 | ||
593 | .PP | |
594 | .B Warning: | |
595 | If multiple parameter changes are requested, | |
596 | .B ip | |
597 | aborts immediately after any of the changes have failed. | |
598 | This is the only case when | |
599 | .B ip | |
600 | can move the system to an unpredictable state. The solution | |
601 | is to avoid changing several parameters with one | |
602 | .B ip link set | |
603 | call. | |
604 | ||
605 | .SS ip link show - display device attributes | |
606 | ||
607 | .TP | |
608 | .BI dev " NAME " (default) | |
609 | .I NAME | |
610 | specifies the network device to show. | |
611 | If this argument is omitted all devices in the default group are listed. | |
612 | ||
613 | .TP | |
614 | .BI group " GROUP " | |
615 | .I GROUP | |
616 | specifies what group of devices to show. | |
617 | ||
618 | .TP | |
619 | .B up | |
620 | only display running interfaces. | |
621 | ||
622 | .SH "EXAMPLES" | |
623 | .PP | |
624 | ip link show | |
625 | .RS 4 | |
626 | Shows the state of all network interfaces on the system. | |
627 | .RE | |
628 | .PP | |
629 | ip link set dev ppp0 mtu 1400 | |
630 | .RS 4 | |
631 | Change the MTU the ppp0 device. | |
632 | .RE | |
633 | .PP | |
634 | ip link add link eth0 name eth0.10 type vlan id 10 | |
635 | .RS 4 | |
636 | Creates a new vlan device eth0.10 on device eth0. | |
637 | .RE | |
638 | .PP | |
639 | ip link delete dev eth0.10 | |
640 | .RS 4 | |
641 | Removes vlan device. | |
642 | .RE | |
643 | ||
644 | .SH SEE ALSO | |
645 | .br | |
646 | .BR ip (8) | |
647 | ||
648 | .SH AUTHOR | |
649 | Original Manpage by Michail Litvak <mci@owl.openwall.com> |