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1 | .\" SPDX-License-Identifier: BSD-2-Clause |
2 | .\" | |
a2566f54 | 3 | .\" Copyright (c) 2006-2020 Roy Marples |
ba9dfb7a RM |
4 | .\" All rights reserved |
5 | .\" | |
6 | .\" Redistribution and use in source and binary forms, with or without | |
7 | .\" modification, are permitted provided that the following conditions | |
8 | .\" are met: | |
9 | .\" 1. Redistributions of source code must retain the above copyright | |
10 | .\" notice, this list of conditions and the following disclaimer. | |
11 | .\" 2. Redistributions in binary form must reproduce the above copyright | |
12 | .\" notice, this list of conditions and the following disclaimer in the | |
13 | .\" documentation and/or other materials provided with the distribution. | |
14 | .\" | |
15 | .\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND | |
16 | .\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
17 | .\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
18 | .\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE | |
19 | .\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
20 | .\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
21 | .\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
22 | .\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
23 | .\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
24 | .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
25 | .\" SUCH DAMAGE. | |
26 | .\" | |
4704f921 | 27 | .Dd January 22, 2020 |
0b4a1931 | 28 | .Dt DHCPCD.CONF 5 |
918338f2 | 29 | .Os |
ba9dfb7a RM |
30 | .Sh NAME |
31 | .Nm dhcpcd.conf | |
443c8695 | 32 | .Nd dhcpcd configuration file |
ba9dfb7a RM |
33 | .Sh DESCRIPTION |
34 | Although | |
35 | .Nm dhcpcd | |
36 | can do everything from the command line, there are cases where it's just easier | |
cf42802e RM |
37 | to do it once in a configuration file. |
38 | Most of the options found in | |
ba9dfb7a | 39 | .Xr dhcpcd 8 |
cf42802e RM |
40 | can be used here. |
41 | The first word on the line is the option and the rest of the line is the value. | |
42 | Leading and trailing whitespace for the option and value are trimmed. | |
43 | You can escape characters in the value using the \\ character. | |
67f84564 RM |
44 | Comments can be prefixed with the # character. |
45 | String values should be quoted with the " character. | |
ba9dfb7a RM |
46 | .Pp |
47 | Here's a list of available options: | |
48 | .Bl -tag -width indent | |
ba97e494 RM |
49 | .It Ic allowinterfaces Ar pattern |
50 | When discovering interfaces, the interface name must match | |
51 | .Ar pattern | |
52 | which is a space or comma separated list of patterns passed to | |
53 | .Xr fnmatch 3 . | |
54 | If the same interface is matched in | |
55 | .Ic denyinterfaces | |
56 | then it is still denied. | |
57 | .It Ic denyinterfaces Ar pattern | |
58 | When discovering interfaces, the interface name must not match | |
59 | .Ar pattern | |
60 | which is a space or comma separated list of patterns passed to | |
61 | .Xr fnmatch 3 . | |
68f04fa8 RM |
62 | .It Ic anonymous |
63 | Enables Anonymity Profiles for DHCP, RFC 7844. | |
64 | This implementation forces a hardware address randomisaton when | |
65 | the interface link is down and that ClientID's are only LL. | |
66 | Any DUID is ignored. | |
67 | All non essential options are then masked at this point, | |
68 | but they could be unmasked by explicitly requesting the option | |
69 | .Sy after | |
70 | the | |
71 | .Ic anonymous | |
72 | option is processed. | |
73 | As such, the | |
74 | .Ic anonymous | |
75 | option | |
76 | .Sy should | |
77 | be the last option in the configuration unless you really want to | |
78 | send something which could identify you. | |
79 | .Nm dhcpcd | |
80 | will not try and reboot an old lease, it will go straight into | |
81 | DISCOVER/SOLICIT. | |
6f767217 RM |
82 | .It Ic arping Ar address Op address |
83 | .Nm dhcpcd | |
ff021b0b | 84 | will arping each address in order before attempting DHCP. |
6f767217 | 85 | If an address is found, we will select the replying hardware address as the |
569c0b11 | 86 | profile, otherwise the IP address. |
6f767217 RM |
87 | Example: |
88 | .Pp | |
89 | .D1 interface bge0 | |
90 | .D1 arping 192.168.0.1 | |
91 | .Pp | |
a6162a75 RM |
92 | .D1 # My specific 192.168.0.1 network |
93 | .D1 profile dd:ee:aa:dd:bb:ee | |
6f767217 | 94 | .D1 static ip_address=192.168.0.10/24 |
a6162a75 RM |
95 | .Pp |
96 | .D1 # A generic 192.168.0.1 network | |
97 | .D1 profile 192.168.0.1 | |
98 | .D1 static ip_address=192.168.0.98/24 | |
32945b61 | 99 | .It Ic authprotocol Ar protocol Op Ar algorithm Op Ar rdm |
c73ed171 | 100 | Authenticate DHCP messages. |
0dc49454 | 101 | See the Supported Authentication Protocols section. |
32945b61 RM |
102 | If |
103 | .Ar protocol | |
104 | is | |
105 | .Ar token | |
106 | then | |
107 | .Ar algorithm is | |
21932eab | 108 | snd_secretid/rcv_secretid so you can send and receive different tokens. |
c73ed171 RM |
109 | .It Ic authtoken Ar secretid Ar realm Ar expire Ar key |
110 | Define a shared key for use in authentication. | |
c07e0ab0 RM |
111 | .Ar realm |
112 | can be "" to for use with the | |
c73ed171 | 113 | .Ar delayed |
c07e0ab0 | 114 | protocol. |
c73ed171 RM |
115 | .Ar expire |
116 | is the date the token expires and should be formatted "yyy-mm-dd HH:MM". | |
117 | You can use the keyword | |
118 | .Ar forever | |
119 | or | |
120 | .Ar 0 | |
121 | which means the token never expires. | |
0dc49454 RM |
122 | For the token protocol, |
123 | .Ar secretid | |
124 | needs to be 0 and | |
125 | .Ar realm | |
126 | needs to be "". | |
127 | If | |
128 | .Nm dhcpcd | |
129 | has the error | |
130 | .D1 dhcp_auth_encode: Invalid argument | |
131 | then it means that | |
132 | .Nm dhcpcd | |
133 | could not find the correct authentication token in your configuration. | |
bac03ede | 134 | .It Ic background |
ef13f300 | 135 | Fork to the background immediately. |
bac03ede RM |
136 | This is useful for startup scripts which don't disable link messages for |
137 | carrier status. | |
6f767217 | 138 | .It Ic blacklist Ar address Ns Op /cidr |
ce6b39df | 139 | Ignores all packets from |
6f767217 | 140 | .Ar address Ns Op /cidr . |
bf80d526 RM |
141 | .It Ic whitelist Ar address Ns Op /cidr |
142 | Only accept packets from | |
143 | .Ar address Ns Op /cidr . | |
144 | .Ic blacklist | |
145 | is ignored if | |
146 | .Ic whitelist | |
147 | is set. | |
8f924434 RM |
148 | .It Ic bootp |
149 | Be a BOOTP client. | |
150 | Basically, this just doesn't send a DHCP Message Type option and will only | |
151 | interact with a BOOTP server. | |
152 | All other DHCP options still work. | |
900b3da4 RM |
153 | .It Ic broadcast |
154 | Instructs the DHCP server to broadcast replies back to the client. | |
569c0b11 | 155 | Normally this is only set for non-Ethernet interfaces, |
900b3da4 RM |
156 | such as FireWire and InfiniBand. |
157 | In most cases, | |
158 | .Nm dhcpcd | |
159 | will set this automatically. | |
a93e79c6 RM |
160 | .It Ic controlgroup Ar group |
161 | Sets the group ownership of | |
d5aadbad | 162 | .Pa @RUNDIR@/sock |
a93e79c6 RM |
163 | so that users other than root can connect to |
164 | .Nm dhcpcd . | |
a3099289 RM |
165 | .It Ic debug |
166 | Echo debug messages to the stderr and syslog. | |
413652c1 RM |
167 | .It Ic dev Ar value |
168 | Load the | |
169 | .Ar value | |
170 | .Pa /dev | |
171 | management module. | |
172 | .Nm dhcpcd | |
173 | will load the first one found to work, if any. | |
6bfd88f1 RM |
174 | .It Ic env Ar value |
175 | Push | |
176 | .Ar value | |
177 | to the environment for use in | |
178 | .Xr dhcpcd-run-hooks 8 . | |
179 | For example, you can force the hostname hook to always set the hostname with | |
180 | .Ic env | |
181 | .Va force_hostname=YES . | |
bbd250b4 RM |
182 | Or set which driver |
183 | .Xr wpa_supplicant 8 | |
184 | should use with | |
185 | .Ic env | |
186 | .Va wpa_supplicant_driver=nl80211 | |
77961e7b | 187 | .Pp |
c883b7b9 | 188 | If the hostname is set, it will be will set to the FQDN if possible as per |
569c0b11 | 189 | RFC 4702, section 3.1. |
77961e7b RM |
190 | If the FQDN option is missing, |
191 | .Nm dhcpcd | |
192 | will still try and set a FQDN from the hostname and domain options for | |
193 | consistency. | |
194 | To override this, set | |
195 | .Ic env | |
196 | .Va hostname_fqdn=[YES|NO|SERVER] . | |
569c0b11 DG |
197 | A value of |
198 | .Va SERVER | |
199 | means just what the server says, don't manipulate it. | |
77961e7b RM |
200 | This could lead to an inconsistent hostname on a DHCPv4 and DHCPv6 network |
201 | where the DHCPv4 hostname is short and the DHCPv6 has an FQDN. | |
202 | DHCPv6 has no hostname option. | |
d2616b08 | 203 | .It Ic clientid Ar string |
c989b023 RM |
204 | Send the |
205 | .Ar clientid . | |
d2616b08 | 206 | If the string is of the format 01:02:03 then it is encoded as hex. |
3faba9e6 RM |
207 | For interfaces whose hardware address is longer than 8 bytes, or if the |
208 | .Ar clientid | |
209 | is an empty string then | |
210 | .Nm dhcpcd | |
211 | sends a default | |
212 | .Ar clientid | |
213 | of the hardware family and the hardware address. | |
d2616b08 | 214 | .It Ic duid |
239b962f RM |
215 | Use a DHCP Unique Identifier. |
216 | If a system UUID is available, that will be used to create a DUID-UUID, | |
217 | otheriwse if persistent storage is available then a DUID-LLT | |
218 | (link local address + time) is generated, | |
219 | otherwise DUID-LL is generated (link local address). | |
ebc9d360 RM |
220 | This, plus the IAID will be used as the |
221 | .Ic clientid . | |
239b962f | 222 | The DUID generated will be held in |
9f51e22b | 223 | .Pa @DBDIR@/duid |
d2616b08 | 224 | and should not be copied to other hosts. |
239b962f | 225 | This file also takes precedence over the above rules. |
ebc9d360 RM |
226 | .It Ic iaid Ar iaid |
227 | Set the Interface Association Identifier to | |
228 | .Ar iaid . | |
9ff636a5 RM |
229 | This option must be used in an |
230 | .Ic interface | |
231 | block. | |
9db242be RM |
232 | This defaults to the VLANID (prefixed with 0xff) for the interface if set, |
233 | otherwise the last 4 bytes of the hardware address assigned to the | |
6f66c6c9 RM |
234 | interface. |
235 | Each instance of this should be unique within the scope of the client and | |
236 | .Nm dhcpcd | |
237 | warns if a conflict is detected. | |
238 | If there is a conflict, it is only a problem if the conflicted IAIDs are | |
239 | used on the same network. | |
94bec972 RM |
240 | .It Ic dhcp |
241 | Enable DHCP on the interface, on by default. | |
242 | .It Ic dhcp6 | |
243 | Enable DHCPv6 on the interface, on by default. | |
244 | .It Ic ipv4 | |
245 | Enable IPv4 on the interface, on by default. | |
246 | .It Ic ipv6 | |
247 | Enable IPv6 on the interface, on by default. | |
438cfdcd RM |
248 | .It Ic request Op Ar address |
249 | Request the | |
250 | .Ar address | |
251 | in the DHCP DISCOVER message. | |
252 | There is no guarantee this is the address the DHCP server will actually give. | |
253 | If no | |
254 | .Ar address | |
255 | is given then the first address currently assigned to the | |
256 | .Ar interface | |
257 | is used. | |
6dc3763d | 258 | .It Ic inform Op Ar address Ns Op Ar /cidr Ns Op Ar /broadcast_address |
438cfdcd RM |
259 | Behaves like |
260 | .Ic request | |
261 | as above, but sends a DHCP INFORM instead of DISCOVER/REQUEST. | |
262 | This does not get a lease as such, just notifies the DHCP server of the | |
263 | .Ar address | |
264 | in use. | |
265 | You should also include the optional | |
266 | .Ar cidr | |
267 | network number in case the address is not already configured on the interface. | |
268 | .Nm dhcpcd | |
269 | remains running and pretends it has an infinite lease. | |
270 | .Nm dhcpcd | |
271 | will not de-configure the interface when it exits. | |
272 | If | |
273 | .Nm dhcpcd | |
274 | fails to contact a DHCP server then it returns a failure instead of falling | |
275 | back on IPv4LL. | |
276 | .It Ic inform6 | |
277 | Performs a DHCPv6 Information Request. | |
278 | No address is requested or specified, but all other DHCPv6 options are allowed. | |
569c0b11 DG |
279 | This is normally performed automatically when an IPv6 Router Advertisement |
280 | indicates that the client should perform this operation. | |
438cfdcd RM |
281 | This option is only needed when |
282 | .Nm dhcpcd | |
569c0b11 | 283 | is not processing IPv6 RA messages and the need for a DHCPv6 Information Request |
438cfdcd | 284 | exists. |
15fc1181 RM |
285 | .It Ic persistent |
286 | .Nm dhcpcd | |
287 | normally de-configures the interface and configuration when it exits. | |
288 | Sometimes, this isn't desirable if, for example, you have root mounted over | |
a544b76a RM |
289 | NFS or SSH clients connect to this host and they need to be notified of |
290 | the host shutting down. | |
15fc1181 | 291 | You can use this option to stop this from happening. |
ff021b0b | 292 | .It Ic fallback Ar profile |
569c0b11 | 293 | Fall back to using this profile if DHCP fails. |
ff021b0b | 294 | This allows you to configure a static profile instead of using ZeroConf. |
ba9dfb7a | 295 | .It Ic hostname Ar name |
c883b7b9 RM |
296 | Sends the hostname |
297 | .Ar name | |
35d02ae6 RM |
298 | to the DHCP server so it can be registered in DNS. |
299 | If | |
c883b7b9 | 300 | .Ar name |
35d02ae6 RM |
301 | is an empty string then the current system hostname is sent. |
302 | If | |
c883b7b9 | 303 | .Ar name |
569c0b11 | 304 | is a FQDN (i.e., contains a .) then it will be encoded as such. |
d6a18654 RM |
305 | .It Ic hostname_short |
306 | Sends the short hostname to the DHCP server instead of the FQDN. | |
307 | This is useful because DHCP servers will not register the FQDN in their | |
308 | DNS if the domain part does not match theirs. | |
77961e7b RM |
309 | .Pp |
310 | Also, see the | |
311 | .Ic env | |
312 | option above to control how the hostname is set on the host. | |
8fe4bf14 | 313 | .It Ic ia_na Op Ar iaid Op / address |
00ababe4 RM |
314 | Request a DHCPv6 Normal Address for |
315 | .Ar iaid . | |
00ababe4 | 316 | .Ar iaid |
ebc9d360 RM |
317 | defaults to the |
318 | .Ic iaid | |
319 | option as described above. | |
320 | You can request more than one ia_na by specifying a unique | |
321 | .Ar iaid | |
322 | for each one. | |
22ea2b0d | 323 | .It Ic ia_ta Op Ar iaid |
00ababe4 RM |
324 | Request a DHCPv6 Temporary Address for |
325 | .Ar iaid . | |
ebc9d360 RM |
326 | You can request more than one ia_ta by specifying a unique |
327 | .Ar iaid | |
328 | for each one. | |
fda2c663 | 329 | .It Ic ia_pd Op Ar iaid Oo / Ar prefix / Ar prefix_len Oc Op Ar interface Op / Ar sla_id Op / Ar prefix_len Op / Ar suffix |
00ababe4 RM |
330 | Request a DHCPv6 Delegated Prefix for |
331 | .Ar iaid . | |
9ff636a5 RM |
332 | This option must be used in an |
333 | .Ic interface | |
334 | block. | |
94a79cea RM |
335 | Unless a |
336 | .Ar sla_id | |
e3883bfc RM |
337 | of 0 is assigned with the same resultant prefix length as the delegation, |
338 | a reject route is installed for the Delegated Prefix to | |
94a79cea | 339 | stop unallocated addresses being resolved upstream. |
22ea2b0d RM |
340 | If no |
341 | .Ar interface | |
94a79cea | 342 | is given then we will assign a prefix to every other interface with a |
22ea2b0d | 343 | .Ar sla_id |
94a79cea | 344 | equivalent to the interface index assigned by the OS. |
22ea2b0d | 345 | Otherwise addresses are only assigned for each |
00ababe4 RM |
346 | .Ar interface |
347 | and | |
9ff636a5 | 348 | .Ar sla_id . |
fda2c663 RM |
349 | Each assigned address will have a |
350 | .Ar suffix , | |
351 | defaulting to 1. | |
f9f15d95 RM |
352 | If the |
353 | .Ar suffix | |
569c0b11 | 354 | is 0 then a SLAAC address is assigned. |
12c77e75 | 355 | You cannot assign a prefix to the requesting interface unless the |
569c0b11 DG |
356 | DHCPv6 server supports the |
357 | .Li RFC 6603 | |
12c77e75 | 358 | Prefix Exclude Option. |
2fae05d0 RM |
359 | .Nm dhcpcd |
360 | has to be running for all the interfaces it is delegating to. | |
00ababe4 | 361 | A default |
367f7b11 | 362 | .Ar prefix_len |
94a79cea RM |
363 | of 64 is assumed, unless the maximum |
364 | .Ar sla_id | |
365 | does not fit. | |
366 | In this case | |
367 | .Ar prefix_len | |
b2feeb9e | 368 | is increased to the highest multiple of 8 that can accommodate the |
94a79cea | 369 | .Ar sla_id . |
367f7b11 | 370 | .Ar sla_id |
663d44bf RM |
371 | is an integer which must be unique inside the |
372 | .Ar iaid | |
373 | and is added to the prefix which must fit inside | |
367f7b11 RM |
374 | .Ar prefix_len |
375 | less the length of the delegated prefix. | |
22ea2b0d RM |
376 | You can specify multiple |
377 | .Ar interface / | |
378 | .Ar sla_id / | |
379 | .Ar prefix_len | |
380 | per | |
381 | .Ic ia_pd , | |
382 | space separated. | |
9be26bc3 | 383 | IPv6RS should be disabled globally when requesting a Prefix Delegation. |
00ababe4 | 384 | .Pp |
9be26bc3 RM |
385 | In the following example eth0 is the externally facing interface to be |
386 | configured for both IPv4 and IPv6. | |
387 | The DHCPv4 server will provide us with an IPv4 address and a default route. | |
388 | The DHCPv6 server is going to provide us with an IPv6 address, a default | |
389 | route and a /64 subnet to be delegated to the internal interface. | |
390 | The eth1 interface will be automatically configured | |
391 | for IPv6 using the first address (::1) from the delegated prefix. | |
b9beb41b | 392 | A second prefix is requested and assigned to two other interfaces. |
9be26bc3 | 393 | .Xr rtadvd 8 |
b9beb41b RM |
394 | can be used with an empty configuration file on eth1, eth2 and eth3, |
395 | to provide automatic | |
9be26bc3 | 396 | IPv6 address configuration for the internal network. |
7e609902 | 397 | .Bd -literal |
b9beb41b RM |
398 | noipv6rs # disable routing solicitation |
399 | denyinterfaces eth2 # Don't touch eth2 at all | |
9be26bc3 | 400 | interface eth0 |
ffb6d59b | 401 | ipv6rs # enable routing solicitation for eth0 |
b9beb41b RM |
402 | ia_na 1 # request an IPv6 address |
403 | ia_pd 2 eth1/0 # request a PD and assign it to eth1 | |
404 | ia_pd 3 eth2/1 eth3/2 # req a PD and assign it to eth2 and eth3 | |
9be26bc3 | 405 | .Ed |
d7555c12 RM |
406 | .It Ic ipv4only |
407 | Only configure IPv4. | |
408 | .It Ic ipv6only | |
925fc70e | 409 | Only configure IPv6. |
329e1f12 | 410 | .It Ic fqdn Op disable | none | ptr | both |
569c0b11 DG |
411 | .Ar none |
412 | will not ask the DHCP server to update DNS. | |
413 | .Ar ptr | |
414 | just asks the DHCP server to update the PTR | |
415 | record of the host in DNS, whereas | |
416 | .Ar both | |
417 | also updates the A record. | |
418 | .Ar disable | |
419 | will disable the FQDN option. | |
420 | The default is | |
cb8c4252 | 421 | .Ar both . |
1b3bc477 RM |
422 | .Nm dhcpcd |
423 | itself never does any DNS updates. | |
e837a670 RM |
424 | .Nm dhcpcd |
425 | encodes the FQDN hostname as specified in | |
569c0b11 | 426 | .Li RFC 1035 . |
3adc5520 | 427 | .It Ic interface Ar interface |
012fd5d3 RM |
428 | Subsequent options are only parsed for this |
429 | .Ar interface . | |
62f12387 | 430 | .It Ic ipv6ra_autoconf |
569c0b11 | 431 | Generate SLAAC addresses for each Prefix advertised by an IPv6 |
62f12387 RM |
432 | Router Advertisement message with the Auto flag set. |
433 | On by default. | |
434 | .It Ic ipv6ra_noautoconf | |
435 | Disables the above option. | |
61dd6cf9 RM |
436 | .It Ic ipv6ra_fork |
437 | By default, when | |
438 | .Nm dhcpcd | |
569c0b11 | 439 | receives an IPv6 Router Advertisement, |
61dd6cf9 RM |
440 | .Nm dhcpcd |
441 | will only fork to the background if the RA contains at least one unexpired | |
e2c4a256 | 442 | RDNSS option and a valid prefix or no DHCPv6 instruction. |
61dd6cf9 RM |
443 | Set this option so to make |
444 | .Nm dhcpcd | |
445 | always fork on an RA. | |
d7555c12 | 446 | .It Ic ipv6rs |
b831a425 | 447 | Enables IPv6 Router Advertisement solicitation. |
eebe9a18 RM |
448 | This is on by default, but is documented here in the case where it is disabled |
449 | globally but needs to be enabled for one interface. | |
ba9dfb7a RM |
450 | .It Ic leasetime Ar seconds |
451 | Request a leasetime of | |
452 | .Ar seconds . | |
281818ae RM |
453 | .It Ic link_rcvbuf Ar size |
454 | Override the size of the link receive buffer from the kernel default. | |
455 | While | |
456 | .Nm dhcpcd | |
457 | will recover from link buffer overflows, | |
458 | this may not be desirable on heavily loaded systems. | |
94d1ded9 RM |
459 | .It Ic logfile Ar logfile |
460 | Writes to the specified | |
4704f921 RM |
461 | .Ar logfile . |
462 | .Nm dhcpcd | |
463 | still writes to | |
94d1ded9 RM |
464 | .Xr syslog 3 . |
465 | The | |
466 | .Ar logfile | |
9cc7e848 | 467 | is reopened when |
94d1ded9 RM |
468 | .Nm dhcpcd |
469 | receives the | |
470 | .Dv SIGUSR2 | |
471 | signal. | |
065125d4 RM |
472 | .It Ic metric Ar metric |
473 | Metrics are used to prefer an interface over another one, lowest wins. | |
474 | .Nm dhcpcd | |
87b266d2 | 475 | will supply a default metric of 200 + |
065125d4 RM |
476 | .Xr if_nametoindex 3 . |
477 | An extra 100 will be added for wireless interfaces. | |
a6d84af0 | 478 | .It Ic mudurl Ar url |
569c0b11 | 479 | Specifies the URL for a Manufacturer Usage Description (MUD). |
d85ad7d0 RM |
480 | The description is used by upstream network devices to instantiate any |
481 | desired access lists. | |
482 | See draft-ietf-opsawg-mud for more information. | |
7dab081f | 483 | .It Ic noalias |
569c0b11 DG |
484 | Any pre-existing IPv4 addresses will be removed from the interface when |
485 | adding a new IPv4 address. | |
ba9dfb7a | 486 | .It Ic noarp |
cf42802e RM |
487 | Don't send any ARP requests. |
488 | This also disables IPv4LL. | |
c73ed171 RM |
489 | .It Ic noauthrequired |
490 | Don't require authentication even though we requested it. | |
d672ebda | 491 | Also allows FORCERENEW and RECONFIGURE messages without authentication. |
f572315d RM |
492 | .It Ic nodelay |
493 | Don't delay for an initial randomised time when starting protocols. | |
413652c1 RM |
494 | .It Ic nodev |
495 | Don't load | |
496 | .Pa /dev | |
497 | management modules. | |
d4154ba7 RM |
498 | .It Ic nodhcp |
499 | Don't start DHCP or listen to DHCP messages. | |
500 | This is only useful when allowing IPv4LL. | |
501 | .It Ic nodhcp6 | |
502 | Don't start DHCPv6 or listen to DHCPv6 messages. | |
569c0b11 DG |
503 | Normally DHCPv6 is started by an IPv6 Router Advertisement instruction or |
504 | configuration. | |
feb553d0 RM |
505 | .It Ic nogateway |
506 | Don't install any default routes. | |
507 | .It Ic gateway | |
508 | Install a default route if available (default). | |
37156a6b RM |
509 | .It Ic nohook Ar script |
510 | Don't run this hook script. | |
8276da82 RM |
511 | Matches full name, or prefixed with 2 numbers optionally ending with |
512 | .Pa .sh . | |
fc7ee231 RM |
513 | .Pp |
514 | So to stop | |
515 | .Nm dhcpcd | |
ca6cdf58 RM |
516 | from touching your DNS settings or starting wpa_supplicant you would do:- |
517 | .D1 nohook resolv.conf, wpa_supplicant | |
bb8051bf RM |
518 | .It Ic noipv4 |
519 | Don't attempt to configure an IPv4 address. | |
ba9dfb7a RM |
520 | .It Ic noipv4ll |
521 | Don't attempt to obtain an IPv4LL address if we failed to get one via DHCP. | |
522 | See | |
523 | .Rs | |
524 | .%T "RFC 3927" | |
525 | .Re | |
bb8051bf | 526 | .It Ic noipv6 |
fabcbe2e | 527 | Don't solicit or accept IPv6 Router Advertisements and DHCPv6. |
91cd7324 | 528 | .It Ic noipv6rs |
fabcbe2e | 529 | Don't solicit or accept IPv6 Router Advertisements. |
a26af491 RM |
530 | .It Ic nolink |
531 | Don't receive link messages about carrier status. | |
532 | You should only set this for buggy interface drivers. | |
2862d340 RM |
533 | .It Ic noup |
534 | Don't bring the interface up when in master mode. | |
535 | If | |
536 | .Nm | |
537 | cannot determine the carrier state, | |
538 | .Nm | |
539 | will enter a tight polling loop until the interface is marked up and running | |
540 | or a valid carrier state is reported. | |
cc45fbd7 | 541 | .It Ic option Ar option |
d2616b08 | 542 | Requests the |
cc45fbd7 | 543 | .Ar option |
cf42802e RM |
544 | from the server. |
545 | It can be a variable to be used in | |
ee4e620a | 546 | .Xr dhcpcd-run-hooks 8 |
cf42802e | 547 | or the numerical value. |
b8ffa3cd RM |
548 | You can specify more |
549 | .Ar option Ns s | |
550 | separated by commas, spaces or more | |
551 | .Ic option | |
552 | lines. | |
553 | Prepend dhcp6_ to | |
554 | .Ar option | |
555 | to request a DHCPv6 option. | |
daa70372 RM |
556 | If no DHCPv6 options are configured, |
557 | then DHCPv4 options are mapped to equivalent DHCPv6 options. | |
2be15e88 RM |
558 | .Pp |
559 | Prepend nd_ to | |
560 | .Ar option | |
561 | to handle ND options, but this only works for the | |
562 | .Ic nooption , | |
563 | .Ic reject | |
564 | and | |
565 | .Ic require | |
566 | options. | |
f38394c1 RM |
567 | .Pp |
568 | To see a list of options you can use, call | |
569 | .Nm dhcpcd | |
570 | with the | |
571 | .Fl V , Fl Fl variables | |
572 | argument. | |
2063c6f9 | 573 | .It Ic nooption Ar option |
2be15e88 RM |
574 | Remove the option from the message before it's processed. |
575 | .It Ic require Ar option | |
576 | Requires the | |
577 | .Ar option | |
578 | to be present in all messages, otherwise the message is ignored. | |
579 | To enforce that | |
580 | .Nm dhcpcd | |
581 | only responds to DHCP servers and not BOOTP servers, you can | |
582 | .Ic require | |
583 | .Ar dhcp_message_type . | |
569c0b11 | 584 | This isn't an exact science though because a BOOTP server can send DHCP-like |
2be15e88 RM |
585 | options. |
586 | .It Ic reject Ar option | |
587 | Reject a message that contains the | |
588 | .Ar option . | |
589 | This is useful when you cannot use | |
590 | .Ic require | |
591 | to select / de-select BOOTP messages. | |
1abffd5b RM |
592 | .It Ic destination Ar option |
593 | If | |
594 | .Nm | |
595 | detects an address added to a point to point interface (PPP, TUN, etc) then | |
596 | it will set the listed DHCP options to the destination address of the | |
597 | interface. | |
6f767217 RM |
598 | .It Ic profile Ar name |
599 | Subsequent options are only parsed for this profile | |
600 | .Ar name . | |
1abffd5b | 601 | .It Ic quiet |
87b266d2 | 602 | Suppress any dhcpcd output to the console, except for errors. |
1abffd5b | 603 | .It Ic reboot Ar seconds |
a2a9a498 RM |
604 | Allow |
605 | .Ar reboot | |
1d5d236a RM |
606 | seconds before moving to the DISCOVER phase if we have an old lease to use |
607 | and moving from DISCOVER to IPv4LL if no reply. | |
a628f34d | 608 | The default is 5 seconds. |
901b42de | 609 | A setting of 0 seconds causes |
a2a9a498 | 610 | .Nm dhcpcd |
901b42de RM |
611 | to skip the REBOOT phase and go straight into DISCOVER. |
612 | This is desirable for mobile users because if you change from network A to | |
613 | network B and they use the same subnet and the address from network A isn't | |
b831a425 RM |
614 | in use on network B, then the DHCP server will remain silent even if |
615 | authoritative which means | |
901b42de RM |
616 | .Nm dhcpcd |
617 | will timeout before moving back to the DISCOVER phase. | |
2662d519 RM |
618 | .It Ic release |
619 | .Nm dhcpcd | |
620 | will release the lease prior to stopping the interface. | |
0aeb350c RM |
621 | .It Ic script Ar script |
622 | Use | |
623 | .Ar script | |
624 | instead of the default | |
625 | .Pa @SCRIPT@ . | |
c53cf4ef RM |
626 | .It Ic ssid Ar ssid |
627 | Subsequent options are only parsed for this wireless | |
628 | .Ar ssid . | |
1aeaf0e7 RM |
629 | .It Ic slaac Op Ar hwaddr | Ar private |
630 | Selects the interface identifier used for SLAAC generated IPv6 addresses. | |
eec0cf35 RM |
631 | If |
632 | .Ar private | |
cb8c4252 | 633 | is used, an RFC 7217 address is generated. |
91a44b91 RM |
634 | .It Ic static Ar value |
635 | Configures a static | |
636 | .Ar value . | |
637 | If you set | |
638 | .Ic ip_address | |
639 | then | |
640 | .Nm dhcpcd | |
569c0b11 DG |
641 | will not attempt to obtain a lease and will just use the value for the address |
642 | with an infinite lease time. | |
408fe755 RM |
643 | If you set |
644 | .Ic ip6_address , | |
645 | .Nm dhcpcd | |
ea781ba6 | 646 | will continue auto-configuration as normal. |
91a44b91 | 647 | .Pp |
6dc3763d RM |
648 | Here is an example which configures two static address, overriding the default |
649 | IPv4 broadcast address, an IPv4 router, DNS and disables IPv6 auto-configuration. | |
408fe755 RM |
650 | You could also use the |
651 | .Ic inform6 | |
652 | command here if you wished to obtain more information via DHCPv6. | |
653 | For IPv4, you should use the | |
654 | .Ic inform Ar ipaddress | |
655 | option instead of setting a static address. | |
91a44b91 | 656 | .D1 interface eth0 |
408fe755 | 657 | .D1 noipv6rs |
91a44b91 | 658 | .D1 static ip_address=192.168.0.10/24 |
6dc3763d | 659 | .D1 static broadcast_address=192.168.0.63 |
408fe755 | 660 | .D1 static ip6_address=fd51:42f8:caae:d92e::ff/64 |
91a44b91 | 661 | .D1 static routers=192.168.0.1 |
408fe755 | 662 | .D1 static domain_name_servers=192.168.0.1 fd51:42f8:caae:d92e::1 |
1abffd5b RM |
663 | .Pp |
664 | Here is an example for PPP which gives the destination a default route. | |
569c0b11 DG |
665 | It uses the special |
666 | .Ar destination | |
667 | keyword to insert the destination address | |
1abffd5b RM |
668 | into the value. |
669 | .D1 interface ppp0 | |
670 | .D1 static ip_address= | |
671 | .D1 destination routers | |
d2616b08 | 672 | .It Ic timeout Ar seconds |
569c0b11 | 673 | Time out after |
b58bf81f RM |
674 | .Ar seconds , |
675 | instead of the default 30. | |
d93d7adc RM |
676 | A setting of 0 |
677 | .Ar seconds | |
678 | causes | |
679 | .Nm dhcpcd | |
680 | to wait forever to get a lease. | |
b58bf81f RM |
681 | If |
682 | .Nm dhcpcd | |
683 | is working on a single interface then | |
684 | .Nm dhcpcd | |
685 | will exit when a timeout occurs, otherwise | |
686 | .Nm dhcpcd | |
687 | will fork into the background. | |
688 | If using IPv4LL then | |
689 | .Nm dhcpcd | |
690 | start the IPv4LL process after the timeout and then wait a little longer | |
691 | before really timing out. | |
d2616b08 | 692 | .It Ic userclass Ar string |
1300150e | 693 | Tag the DHCPv4 messages with the userclass. |
cf42802e | 694 | You can specify more than one. |
bac03ede | 695 | .It Ic vendor Ar code , Ns Ar value |
87b266d2 | 696 | Add an encapsulated vendor option. |
757520c5 RM |
697 | .Ar code |
698 | should be between 1 and 254 inclusive. | |
95d6dcfa RM |
699 | To add a raw vendor string, omit |
700 | .Ar code | |
701 | but keep the comma. | |
757520c5 RM |
702 | Examples. |
703 | .Pp | |
704 | Set the vendor option 01 with an IP address. | |
705 | .D1 vendor 01,192.168.0.2 | |
706 | Set the vendor option 02 with a hex code. | |
707 | .D1 vendor 02,01:02:03:04:05 | |
708 | Set the vendor option 03 with an IP address as a string. | |
709 | .D1 vendor 03,\e"192.168.0.2\e" | |
87b266d2 | 710 | Set un-encapsulated vendor option to hello world. |
9cb58952 | 711 | .D1 vendor ,"hello world" |
bac03ede | 712 | .It Ic vendorclassid Ar string |
1300150e | 713 | Set the DHCP Vendor Class. |
569c0b11 | 714 | DHCPv6 has its own option as shown below. |
eebe9a18 RM |
715 | The default is |
716 | dhcpcd-<version>:<os>:<machine>:<platform>. | |
717 | For example | |
718 | .D1 dhcpcd-5.5.6:NetBSD-6.99.5:i386:i386 | |
bac03ede | 719 | If not set then none is sent. |
eebe9a18 RM |
720 | Some badly configured DHCP servers reject unknown vendorclassids. |
721 | To work around it, try and impersonate Windows by using the MSFT vendorclassid. | |
7a911e57 | 722 | .It Ic vendclass Ar en Ar data |
1300150e | 723 | Add the DHCPv6 Vendor Indetifying Vendor Class with the IANA assigned Enterprise |
7a911e57 RM |
724 | Number |
725 | .Ar en | |
726 | with the | |
727 | .Ar data . | |
728 | This option can be set more than once to add more data, but the behaviour, | |
ea781ba6 | 729 | as per RFC 3925 is undefined if the Enterprise Number differs. |
7013b073 | 730 | .It Ic waitip Op 4 | 6 |
2a07a2af | 731 | Wait for an address to be assigned before forking to the background. |
7013b073 RM |
732 | 4 means wait for an IPv4 address to be assigned. |
733 | 6 means wait for an IPv6 address to be assigned. | |
8b7499fd RM |
734 | If no argument is given, |
735 | .Nm | |
736 | will wait for any address protocol to be assigned. | |
737 | It is possible to wait for more than one address protocol and | |
738 | .Nm | |
739 | will only fork to the background when all waiting conditions are satisfied. | |
4242c9b3 RM |
740 | .It Ic xidhwaddr |
741 | Use the last four bytes of the hardware address as the DHCP xid instead | |
742 | of a randomly generated number. | |
eaa90296 | 743 | .El |
8e7d8c37 | 744 | .Ss Defining new options |
569c0b11 DG |
745 | DHCP, ND and DHCPv6 allow for the use of custom options, and RFC 3925 vendor |
746 | options for DHCP can also be supplied. | |
8e7d8c37 | 747 | Each option needs to be started with the |
2be15e88 | 748 | .Ic define , |
a6d84af0 | 749 | .Ic definend , |
8e7d8c37 | 750 | .Ic define6 |
569c0b11 DG |
751 | or |
752 | .Ic vendopt | |
8e7d8c37 RM |
753 | directive. |
754 | This can optionally be followed by both | |
755 | .Ic embed | |
756 | or | |
757 | .Ic encap | |
758 | options. | |
759 | Both can be specified more than once and | |
760 | .Ic embed | |
761 | must come before | |
762 | .Ic encap . | |
763 | .Bl -tag -width indent | |
764 | .It Ic define Ar code Ar type Ar variable | |
765 | Defines the DHCP option | |
766 | .Ar code | |
767 | of | |
768 | .Ar type | |
769 | with a name of | |
770 | .Ar variable | |
771 | exported to | |
772 | .Xr dhcpcd-run-hooks 8 . | |
2be15e88 RM |
773 | .It Ic definend Ar code Ar type Ar variable |
774 | Defines the ND option | |
775 | .Ar code | |
776 | of | |
777 | .Ar type | |
778 | with a name of | |
779 | .Ar variable | |
780 | exported to | |
781 | .Xr dhcpcd-run-hooks 8 , | |
782 | with a prefix of | |
783 | .Va _nd . | |
8e7d8c37 RM |
784 | .It Ic define6 Ar code Ar type Ar variable |
785 | Defines the DHCPv6 option | |
786 | .Ar code | |
787 | of | |
788 | .Ar type | |
789 | with a name of | |
790 | .Ar variable | |
791 | exported to | |
792 | .Xr dhcpcd-run-hooks 8 , | |
793 | with a prefix of | |
794 | .Va _dhcp6 . | |
7a911e57 RM |
795 | .It Ic vendopt Ar code Ar type Ar variable |
796 | Defines the Vendor-Identifying Vendor Options. | |
797 | The | |
798 | .Ar code | |
925fc70e | 799 | is the IANA Enterprise Number which will uniquely describe the encapsulated |
7a911e57 RM |
800 | options. |
801 | .Ar type | |
802 | is normally | |
803 | .Ar encap . | |
804 | .Ar variable | |
805 | names the Vendor option to be exported. | |
8e7d8c37 RM |
806 | .It Ic embed Ar type Ar variable |
807 | Defines an embedded variable within the defined option. | |
808 | The length is determined by the | |
809 | .Ar type . | |
63bdd2c2 RM |
810 | If the |
811 | .Ar variable | |
812 | is not the same as defined in the parent option, | |
813 | it is prefixed with the parent | |
814 | .Ar variable | |
815 | first with an underscore. | |
cc71162d RM |
816 | If the |
817 | .Ar variable | |
818 | has the name of | |
819 | .Ar reserved | |
820 | then it is not processed. | |
8e7d8c37 RM |
821 | .It Ic encap Ar code Ar type Ar variable |
822 | Defines an encapsulated variable within the defined option. | |
823 | The length is determined by the | |
824 | .Ar type . | |
63bdd2c2 RM |
825 | If the |
826 | .Ar variable | |
827 | is not the same as defined in the parent option, | |
828 | it is prefixed with the parent | |
829 | .Ar variable | |
830 | first with an underscore. | |
831 | .El | |
832 | .Ss Type prefix | |
833 | These keywords come before the type itself, to describe it more fully. | |
834 | You can use more than one, but they must appear in the order listed below. | |
835 | .Bl -tag -width -indent | |
836 | .It Ic request | |
837 | Requests the option by default without having to be specified in user | |
569c0b11 | 838 | configuration. |
63bdd2c2 | 839 | .It Ic norequest |
569c0b11 | 840 | This option cannot be requested, regardless of user configuration. |
ecdbb919 RM |
841 | .It Ic optional |
842 | This option is optional. | |
569c0b11 | 843 | Only makes sense for embedded options like the client FQDN option, where |
ecdbb919 | 844 | the FQDN string itself is optional. |
03476881 RM |
845 | .It Ic index |
846 | The option can appear more than once and will be indexed. | |
63bdd2c2 | 847 | .It Ic array |
b2feeb9e | 848 | The option data is split into a space separated array, each element being |
63bdd2c2 | 849 | the same type. |
8e7d8c37 RM |
850 | .El |
851 | .Ss Types to define | |
b21cd906 RM |
852 | The type directly affects the length of data consumed inside the option. |
853 | Any remaining data is normally discarded. | |
854 | Lengths can be specified for string and binhex types, but this is generally | |
855 | with other data embedded afterwards in the same option. | |
8e7d8c37 RM |
856 | .Bl -tag -width indent |
857 | .It Ic ipaddress | |
cc71162d | 858 | An IPv4 address, 4 bytes. |
8e7d8c37 | 859 | .It Ic ip6address |
cc71162d | 860 | An IPv6 address, 16 bytes. |
b21cd906 | 861 | .It Ic string Op : Ic length |
8f008ca7 | 862 | A NVT ASCII string of printable characters. |
8e7d8c37 | 863 | .It Ic byte |
cc71162d RM |
864 | A byte. |
865 | .It Ic bitflags : Ic flags | |
866 | A byte represented as a string of flags, most significant bit first. | |
867 | For example, using ABCDEFGH then A would equal 10000000, B 01000000, | |
868 | C 00100000, etc. | |
869 | If the bit is not set, the flag is not printed. | |
925fc70e RM |
870 | A flag of 0 is not printed even if the bit position is set. |
871 | This is to allow reservation of the first bits while assigning the last bits. | |
8e7d8c37 | 872 | .It Ic int16 |
cc71162d | 873 | A signed 16bit integer, 2 bytes. |
8e7d8c37 | 874 | .It Ic uint16 |
cc71162d | 875 | An unsigned 16bit integer, 2 bytes. |
8e7d8c37 | 876 | .It Ic int32 |
cc71162d | 877 | A signed 32bit integer, 4 bytes. |
8e7d8c37 | 878 | .It Ic uint32 |
cc71162d RM |
879 | An unsigned 32bit integer, 4 bytes. |
880 | .It Ic flag | |
881 | A fixed value (1) to indicate that the option is present, 0 bytes. | |
8e7d8c37 | 882 | .It Ic domain |
569c0b11 | 883 | An RFC 3397 encoded string. |
8f008ca7 | 884 | .It Ic dname |
569c0b11 | 885 | An RFC 1035 validated string. |
b21cd906 | 886 | .It Ic binhex Op : Ic length |
cc71162d | 887 | Binary data expressed as hexadecimal. |
8e7d8c37 | 888 | .It Ic embed |
cc71162d | 889 | Contains embedded options (implies encap as well). |
8e7d8c37 | 890 | .It Ic encap |
cc71162d | 891 | Contains encapsulated options (implies embed as well). |
03476881 | 892 | .It Ic option |
cc71162d | 893 | References an option from the global definition. |
8e7d8c37 RM |
894 | .El |
895 | .Ss Example definition | |
569c0b11 | 896 | .D1 # DHCP option 81, Fully Qualified Domain Name, RFC 4702 |
63bdd2c2 RM |
897 | .D1 define 81 embed fqdn |
898 | .D1 embed byte flags | |
899 | .D1 embed byte rcode1 | |
900 | .D1 embed byte rcode2 | |
8e7d8c37 RM |
901 | .D1 embed domain fqdn |
902 | .Pp | |
569c0b11 | 903 | .D1 # DHCP option 125, Vendor Specific Information Option, RFC 3925 |
63bdd2c2 RM |
904 | .D1 define 125 encap vsio |
905 | .D1 embed uint32 enterprise_number | |
8e7d8c37 | 906 | .D1 # Options defined for the enterprise number |
63bdd2c2 | 907 | .D1 encap 1 ipaddress ipaddress |
0dc49454 | 908 | .Ss Supported Authentication Protocols |
c73ed171 RM |
909 | .Bl -tag -width -indent |
910 | .It Ic token | |
32945b61 RM |
911 | Sends a plain text token the server expects and matches a token sent by |
912 | the server. | |
569c0b11 DG |
913 | The tokens do not have to be the same. |
914 | If unspecified, the token with a | |
915 | .Ar secretid | |
916 | of 0 will be used in sending messages | |
32945b61 | 917 | and validating received messages. |
c73ed171 RM |
918 | .It Ic delayedrealm |
919 | Delayed Authentication. | |
920 | .Nm dhcpcd | |
921 | will send an authentication option with no key or MAC. | |
922 | The server will see this option, and select a key for | |
923 | .Nm , writing the | |
924 | .Ar realm | |
925 | and | |
926 | .Ar secretid | |
927 | in it. | |
928 | .Nm dhcpcd | |
569c0b11 DG |
929 | will then look for an unexpired token with a matching |
930 | .Ar realm | |
931 | and | |
932 | .Ar secretid . | |
925fc70e | 933 | This token is used to authenticate all other messages. |
c73ed171 RM |
934 | .It Ic delayed |
935 | Same as above, but without a realm. | |
936 | .El | |
0dc49454 | 937 | .Ss Supported Authentication Algorithms |
c73ed171 RM |
938 | If none specified, |
939 | .Ic hmac-md5 | |
940 | is the default. | |
941 | .Bl -tag -width -indent | |
942 | .It Ic hmac-md5 | |
943 | .El | |
944 | .Ss Supported Replay Detection Mechanisms | |
945 | If none specified, | |
946 | .Ic monotonic | |
947 | is the default. | |
cf0840ef | 948 | If this is changed from what was previously used, |
569c0b11 DG |
949 | or the means of calculating or storing it is broken, then the DHCP server |
950 | will probably have to have its notion of the client's Replay Detection Value | |
cf0840ef | 951 | reset. |
c73ed171 | 952 | .Bl -tag -width -indent |
cf0840ef RM |
953 | .It Ic monocounter |
954 | Read the number in the file | |
955 | .Pa @DBDIR@/dhcpcd-rdm.monotonic | |
956 | and add one to it. | |
957 | .It Ic monotime | |
569c0b11 | 958 | Create an NTP timestamp from the system time. |
c73ed171 | 959 | .It Ic monotonic |
cf0840ef RM |
960 | Same as |
961 | .Ic monotime . | |
c73ed171 | 962 | .El |
ba9dfb7a | 963 | .Sh SEE ALSO |
0b4a1931 | 964 | .Xr fnmatch 3 , |
065125d4 | 965 | .Xr if_nametoindex 3 , |
0b4a1931 RM |
966 | .Xr dhcpcd 8 , |
967 | .Xr dhcpcd-run-hooks 8 | |
ba9dfb7a | 968 | .Sh AUTHORS |
2cfe8d07 | 969 | .An Roy Marples Aq Mt roy@marples.name |
ba9dfb7a | 970 | .Sh BUGS |
fd73ceb1 RM |
971 | Please report them to |
972 | .Lk http://roy.marples.name/projects/dhcpcd |