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38 .Nd router solicitation daemon
43 .Op Fl M Ar script-name
44 .Op Fl O Ar script-name
45 .Op Fl A Ar script-name
47 .Op Fl R Ar script-name
51 .Op Fl M Ar script-name
52 .Op Fl O Ar script-name
53 .Op Fl A Ar script-name
55 .Op Fl R Ar script-name
59 .Op Fl M Ar script-name
60 .Op Fl O Ar script-name
61 .Op Fl A Ar script-name
62 .Op Fl R Ar script-name
66 .Op Fl M Ar script-name
67 .Op Fl O Ar script-name
68 .Op Fl A Ar script-name
69 .Op Fl R Ar script-name
74 is the daemon program to send ICMPv6 Router Solicitation messages
75 on the specified interfaces.
76 If a node (re)attaches to a link,
78 sends some Router Solicitations on the link destined to the link-local scope
79 all-routers multicast address to discover new routers
80 and to get non link-local addresses.
83 should be used on IPv6 hosts
87 If you invoke the program as
89 it will transmit probes from the specified
91 without becoming a daemon.
103 sends at most 3 Router Solicitations on an interface
104 after one of the following events:
108 Just after invocation of
112 The interface is up after a temporary interface failure.
114 detects such failures by periodically probing to see if the status
115 of the interface is active or not.
116 Note that some network cards and drivers do not allow the extraction
120 cannot detect the change of the interface status.
122 Every 60 seconds if the
124 option is specified and the
126 daemon cannot get the interface status.
127 This feature does not conform to the IPv6 neighbor discovery
128 specification, but is provided for mobile stations.
129 The default interval for router advertisements, which is on the order of 10
130 minutes, is slightly long for mobile stations.
131 This feature is provided
132 for such stations so that they can find new routers as soon as possible
133 when they attach to another link.
138 has sent a Router Solicitation, and has received a valid Router Advertisement,
139 it refrains from sending additional solicitations on that interface, until
140 the next time one of the above events occurs.
142 When sending a Router Solicitation on an interface,
144 includes a Source Link-layer address option if the interface
145 has a link-layer address.
148 manages a per-interface parameter to detect if a separate protocol is
149 needed for configuration parameters other than host's addresses.
150 At the invocation time, the flag is FALSE, and becomes TRUE when
151 the daemon receives a router advertisement with the OtherConfig flag
153 A script file can be specified to deal with the case
157 start resending router solicitation messages by one of the conditions
159 the daemon resets the parameter because the event may indicate a
160 change on the attached link.
162 Upon receipt of signal
165 will dump the current internal state into
166 .Pa /var/run/rtsold.dump .
169 The options are as follows:
170 .Bl -tag -width indent
172 Autoprobe outgoing interfaces.
174 will try to find any non-loopback, IPv6-capable interfaces
175 and send router solicitation messages on all of them.
179 Enable more debugging including the printing of internal timer information.
183 from becoming a daemon (foreground mode).
184 Warning messages are generated to standard error
188 Explicitly configure the kernel to accept Router Advertisements and
189 disable IPv6 forwarding.
190 These settings are required for proper
193 Without this option, the current settings will be obeyed;
194 if they are incompatible with proper operation,
195 warning messages will be generated,
196 but Router Solicitations will still be sent.
197 The settings may be changed manually with
202 Transmit Router Solicitation packets immediately, without waiting the
203 normal random (between 0 and 1 second) delay.
204 This option should not be used on networks where it might result in
205 congestion due to many hosts simultaneously (re)connecting and
206 sending such packets.
208 Enable mobility support.
209 If this option is specified,
211 sends probing packets to default routers that have advertised Router
213 when the node (re)attaches to an interface.
214 Moreover, if the option is specified,
216 periodically sends Router Solicitation on an interface that does not support
220 Perform only one probe.
221 Transmit Router Solicitation packets until at least one valid Router
222 Advertisement packet has arrived on each
225 .It Fl M Ar script-name
226 Specifies a supplement script file to handle the Managed Configuration
227 flag of the router advertisement.
228 When the flag changes from FALSE to TRUE,
232 with a first argument of the receiving interface name
233 and a second argument of the sending router address,
234 expecting the script will then start a protocol for the managed
237 must be the absolute path from root to the script file, be a regular
238 file, and be created by the same owner who runs
240 .It Fl O Ar script-name
241 Specifies a supplement script file to handle the Other Configuration
242 flag of the router advertisement.
243 When the flag changes from FALSE to TRUE,
247 with a first argument of the receiving interface name
248 and a second argument of the sending router address,
249 expecting the script will then start a protocol for the other
251 The script will not be run if the Managed Configuration flag in the
252 router advertisement is also TRUE.
254 must be the absolute path from root to the script file, be a regular
255 file, and be created by the same owner who runs
257 .It Fl A Ar script-name
258 Specifies a supplement script file to always be called for the router
263 with a first argument of the receiving interface name
264 and a second argument of the sending router address.
266 must be the absolute path from root to the script file, be a regular
267 file, and be created by the same owner who runs
270 Writes the process ID of
274 instead of the default PID file
275 .Pa /var/run/rtsold.pid .
276 .It Fl R Ar script-name
277 Specifies a script to run when router advertisement options
278 .Dv RDNSS Pq Recursive DNS Server
280 .Dv DNSSL Pq DNS Search List
282 The information of DNS servers and DNS search domains will be sent to
283 standard input of this script.
286 script is used by default.
288 Specifies whether to add the source address of Router Advertisement
289 messages to the interface name in the parameters of the RDNSS and DNSSL
294 is specified, the interface name in the script parameters will be
295 .Ql ifname:slaac:[RA-source-address] .
301 .Bl -tag -width /var/run/rtsold.dump -compact
302 .It Pa /var/run/rtsold.pid
303 The PID of the currently running
305 .It Pa /var/run/rtsold.dump
306 Internal state dump file.
320 command is based on the
322 command, which first appeared in WIDE/KAME IPv6 protocol stack kit.
324 is now integrated into
328 When a network card is removed and reinserted, the corresponding interface index
332 assumes such changes will not occur, and always uses the index that
333 it got at invocation.
336 may not work if you reinsert a network card.
339 should be killed and restarted.
341 The IPv6 autoconfiguration specification assumes a single-interface host.
342 You may see kernel error messages if you try to autoconfigure a host with
344 Also, it seems contradictory for