source: patches/iputils-s20071127-manpages-2.patch@ 2b32699

clfs-1.2 clfs-2.1 clfs-3.0.0-systemd clfs-3.0.0-sysvinit systemd sysvinit
Last change on this file since 2b32699 was 8201ceeb, checked in by Jim Gifford <clfs@…>, 16 years ago

Corrected Patch for iputils

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File size: 29.2 KB
RevLine 
[52f035d]1Submitted By: Jim Gifford <jim at cross-lfs dot org>
2Date: 2009-02-18
3Initial Package Version: s20071127
4Upstream Status: Unknown
5Origin: Jim Gifford
6Description: Provides the man pages (adding docbook2man with all its
7 dependencies would be a major addition to the book, so I built it
[8d00c46]8 -once- on a completed system and saved the data).
[52f035d]9
[8201ceeb]10diff -Naur doc/arping.8 doc/arping.8
11--- doc/arping.8 1969-12-31 16:00:00.000000000 -0800
12+++ doc/arping.8 2009-02-18 23:20:33.249183964 -0800
[52f035d]13@@ -0,0 +1,110 @@
14+.\" This manpage has been automatically generated by docbook2man
15+.\" from a DocBook document. This tool can be found at:
16+.\" <http://shell.ipoline.com/~elmert/comp/docbook2X/>
17+.\" Please send any bug reports, improvements, comments, patches,
18+.\" etc. to Steve Cheng <steve@ggi-project.org>.
19+.TH "ARPING" "8" "18 February 2009" "iputils-071127" "System Manager's Manual: iputils"
20+.SH NAME
21+arping \- send ARP REQUEST to a neighbour host
22+.SH SYNOPSIS
23+
24+\fBarping\fR [\fB-AbDfhqUV\fR] [\fB-c \fIcount\fB\fR] [\fB-w \fIdeadline\fB\fR] [\fB-s \fIsource\fB\fR] \fB-I \fIinterface\fB\fR \fB\fIdestination\fB\fR
25+
26+.SH "DESCRIPTION"
27+.PP
28+Ping \fIdestination\fR on device \fIinterface\fR by ARP packets,
29+using source address \fIsource\fR.
30+.SH "OPTIONS"
31+.TP
32+\fB-A\fR
33+The same as \fB-U\fR, but ARP REPLY packets used instead
34+of ARP REQUEST.
35+.TP
36+\fB-b\fR
37+Send only MAC level broadcasts. Normally \fBarping\fR starts
38+from sending broadcast, and switch to unicast after reply received.
39+.TP
40+\fB-c \fIcount\fB\fR
41+Stop after sending \fIcount\fR ARP REQUEST
42+packets. With
43+\fIdeadline\fR
44+option, \fBarping\fR waits for
45+\fIcount\fR ARP REPLY packets, until the timeout expires.
46+.TP
47+\fB-D\fR
48+Duplicate address detection mode (DAD). See
49+RFC2131, 4.4.1.
50+Returns 0, if DAD succeeded i.e. no replies are received
51+.TP
52+\fB-f\fR
53+Finish after the first reply confirming that target is alive.
54+.TP
55+\fB-I \fIinterface\fB\fR
56+Name of network device where to send ARP REQUEST packets. This option
57+is required.
58+.TP
59+\fB-h\fR
60+Print help page and exit.
61+.TP
62+\fB-q\fR
63+Quiet output. Nothing is displayed.
64+.TP
65+\fB-s \fIsource\fB\fR
66+IP source address to use in ARP packets.
67+If this option is absent, source address is:
68+.RS
69+.TP 0.2i
70+\(bu
71+In DAD mode (with option \fB-D\fR) set to 0.0.0.0.
72+.TP 0.2i
73+\(bu
74+In Unsolicited ARP mode (with options \fB-U\fR or \fB-A\fR)
75+set to \fIdestination\fR.
76+.TP 0.2i
77+\(bu
78+Otherwise, it is calculated from routing tables.
79+.RE
80+.TP
81+\fB-U\fR
82+Unsolicited ARP mode to update neighbours' ARP caches.
83+No replies are expected.
84+.TP
85+\fB-V\fR
86+Print version of the program and exit.
87+.TP
88+\fB-w \fIdeadline\fB\fR
89+Specify a timeout, in seconds, before
90+\fBarping\fR
91+exits regardless of how many
92+packets have been sent or received. In this case
93+\fBarping\fR
94+does not stop after
95+\fIcount\fR
96+packet are sent, it waits either for
97+\fIdeadline\fR
98+expire or until
99+\fIcount\fR
100+probes are answered.
101+.SH "SEE ALSO"
102+.PP
103+\fBping\fR(8),
104+\fBclockdiff\fR(8),
105+\fBtracepath\fR(8).
106+.SH "AUTHOR"
107+.PP
108+\fBarping\fR was written by
109+Alexey Kuznetsov
110+<kuznet@ms2.inr.ac.ru>.
111+It is now maintained by
112+YOSHIFUJI Hideaki
113+<yoshfuji@skbuff.net>.
114+.SH "SECURITY"
115+.PP
116+\fBarping\fR requires CAP_NET_RAWIO capability
117+to be executed. It is not recommended to be used as set-uid root,
118+because it allows user to modify ARP caches of neighbour hosts.
119+.SH "AVAILABILITY"
120+.PP
121+\fBarping\fR is part of \fIiputils\fR package
122+and the latest versions are available in source form at
123+http://www.skbuff.net/iputils/iputils-current.tar.bz2.
[8201ceeb]124diff -Naur doc/clockdiff.8 doc/clockdiff.8
125--- doc/clockdiff.8 1969-12-31 16:00:00.000000000 -0800
126+++ doc/clockdiff.8 2009-02-18 23:20:33.249183964 -0800
[52f035d]127@@ -0,0 +1,81 @@
128+.\" This manpage has been automatically generated by docbook2man
129+.\" from a DocBook document. This tool can be found at:
130+.\" <http://shell.ipoline.com/~elmert/comp/docbook2X/>
131+.\" Please send any bug reports, improvements, comments, patches,
132+.\" etc. to Steve Cheng <steve@ggi-project.org>.
133+.TH "CLOCKDIFF" "8" "18 February 2009" "iputils-071127" "System Manager's Manual: iputils"
134+.SH NAME
135+clockdiff \- measure clock difference between hosts
136+.SH SYNOPSIS
137+
138+\fBclockdiff\fR [\fB-o\fR] [\fB-o1\fR] \fB\fIdestination\fB\fR
139+
140+.SH "DESCRIPTION"
141+.PP
142+\fBclockdiff\fR Measures clock difference between us and
143+\fIdestination\fR with 1 msec resolution using ICMP TIMESTAMP
144+[2]
145+packets or, optionally, IP TIMESTAMP option
146+[3]
147+option added to ICMP ECHO.
148+[1]
149+.SH "OPTIONS"
150+.TP
151+\fB-o\fR
152+Use IP TIMESTAMP with ICMP ECHO instead of ICMP TIMESTAMP
153+messages. It is useful with some destinations, which do not support
154+ICMP TIMESTAMP (f.e. Solaris <2.4).
155+.TP
156+\fB-o1\fR
157+Slightly different form of \fB-o\fR, namely it uses three-term
158+IP TIMESTAMP with prespecified hop addresses instead of four term one.
159+What flavor works better depends on target host. Particularly,
160+\fB-o\fR is better for Linux.
161+.SH "WARNINGS"
162+.TP 0.2i
163+\(bu
164+Some nodes (Cisco) use non-standard timestamps, which is allowed
165+by RFC, but makes timestamps mostly useless.
166+.TP 0.2i
167+\(bu
168+Some nodes generate messed timestamps (Solaris>2.4), when
169+run \fBxntpd\fR. Seems, its IP stack uses a corrupted clock source,
170+which is synchronized to time-of-day clock periodically and jumps
171+randomly making timestamps mostly useless. Good news is that you can
172+use NTP in this case, which is even better.
173+.TP 0.2i
174+\(bu
175+\fBclockdiff\fR shows difference in time modulo 24 days.
176+.SH "SEE ALSO"
177+.PP
178+\fBping\fR(8),
179+\fBarping\fR(8),
180+\fBtracepath\fR(8).
181+.SH "REFERENCES"
182+.PP
183+[1] ICMP ECHO,
184+RFC0792, page 14.
185+.PP
186+[2] ICMP TIMESTAMP,
187+RFC0792, page 16.
188+.PP
189+[3] IP TIMESTAMP option,
190+RFC0791, 3.1, page 16.
191+.SH "AUTHOR"
192+.PP
193+\fBclockdiff\fR was compiled by
194+Alexey Kuznetsov
195+<kuznet@ms2.inr.ac.ru>. It was based on code borrowed
196+from BSD \fBtimed\fR daemon.
197+It is now maintained by
198+YOSHIFUJI Hideaki
199+<yoshfuji@skbuff.net>.
200+.SH "SECURITY"
201+.PP
202+\fBclockdiff\fR requires CAP_NET_RAWIO capability
203+to be executed. It is safe to be used as set-uid root.
204+.SH "AVAILABILITY"
205+.PP
206+\fBclockdiff\fR is part of \fIiputils\fR package
207+and the latest versions are available in source form at
208+http://www.skbuff.net/iputils/iputils-current.tar.bz2.
[8201ceeb]209diff -Naur doc/ping.8 doc/ping.8
210--- doc/ping.8 1969-12-31 16:00:00.000000000 -0800
211+++ doc/ping.8 2009-02-18 23:20:33.249183964 -0800
[52f035d]212@@ -0,0 +1,332 @@
213+.\" This manpage has been automatically generated by docbook2man
214+.\" from a DocBook document. This tool can be found at:
215+.\" <http://shell.ipoline.com/~elmert/comp/docbook2X/>
216+.\" Please send any bug reports, improvements, comments, patches,
217+.\" etc. to Steve Cheng <steve@ggi-project.org>.
218+.TH "PING" "8" "18 February 2009" "iputils-071127" "System Manager's Manual: iputils"
219+.SH NAME
220+ping, ping6 \- send ICMP ECHO_REQUEST to network hosts
221+.SH SYNOPSIS
222+
223+\fBping\fR [\fB-LRUbdfnqrvVaAB\fR] [\fB-c \fIcount\fB\fR] [\fB-i \fIinterval\fB\fR] [\fB-l \fIpreload\fB\fR] [\fB-p \fIpattern\fB\fR] [\fB-s \fIpacketsize\fB\fR] [\fB-t \fIttl\fB\fR] [\fB-w \fIdeadline\fB\fR] [\fB-F \fIflowlabel\fB\fR] [\fB-I \fIinterface\fB\fR] [\fB-M \fIhint\fB\fR] [\fB-Q \fItos\fB\fR] [\fB-S \fIsndbuf\fB\fR] [\fB-T \fItimestamp option\fB\fR] [\fB-W \fItimeout\fB\fR] [\fB\fIhop\fB\fR\fI ...\fR] \fB\fIdestination\fB\fR
224+
225+.SH "DESCRIPTION"
226+.PP
227+\fBping\fR uses the ICMP protocol's mandatory ECHO_REQUEST
228+datagram to elicit an ICMP ECHO_RESPONSE from a host or gateway.
229+ECHO_REQUEST datagrams (``pings'') have an IP and ICMP
230+header, followed by a struct timeval and then an arbitrary
231+number of ``pad'' bytes used to fill out the packet.
232+.SH "OPTIONS"
233+.TP
234+\fB-a\fR
235+Audible ping.
236+.TP
237+\fB-A\fR
238+Adaptive ping. Interpacket interval adapts to round-trip time, so that
239+effectively not more than one (or more, if preload is set) unanswered probes
240+present in the network. Minimal interval is 200msec for not super-user.
241+On networks with low rtt this mode is essentially equivalent to flood mode.
242+.TP
243+\fB-b\fR
244+Allow pinging a broadcast address.
245+.TP
246+\fB-B\fR
247+Do not allow \fBping\fR to change source address of probes.
248+The address is bound to one selected when \fBping\fR starts.
249+.TP
250+\fB-c \fIcount\fB\fR
251+Stop after sending \fIcount\fR ECHO_REQUEST
252+packets. With
253+\fIdeadline\fR
254+option, \fBping\fR waits for
255+\fIcount\fR ECHO_REPLY packets, until the timeout expires.
256+.TP
257+\fB-d\fR
258+Set the SO_DEBUG option on the socket being used.
259+Essentially, this socket option is not used by Linux kernel.
260+.TP
261+\fB-F \fIflow label\fB\fR
262+Allocate and set 20 bit flow label on echo request packets.
263+(Only \fBping6\fR). If value is zero, kernel allocates random flow label.
264+.TP
265+\fB-f\fR
266+Flood ping. For every ECHO_REQUEST sent a period ``.'' is printed,
267+while for ever ECHO_REPLY received a backspace is printed.
268+This provides a rapid display of how many packets are being dropped.
269+If interval is not given, it sets interval to zero and
270+outputs packets as fast as they come back or one hundred times per second,
271+whichever is more.
272+Only the super-user may use this option with zero interval.
273+.TP
274+\fB-i \fIinterval\fB\fR
275+Wait \fIinterval\fR seconds between sending each packet.
276+The default is to wait for one second between each packet normally,
277+or not to wait in flood mode. Only super-user may set interval
278+to values less 0.2 seconds.
279+.TP
280+\fB-I \fIinterface address\fB\fR
281+Set source address to specified interface address. Argument
282+may be numeric IP address or name of device. When pinging IPv6
283+link-local address this option is required.
284+.TP
285+\fB-l \fIpreload\fB\fR
286+If \fIpreload\fR is specified,
287+\fBping\fR sends that many packets not waiting for reply.
288+Only the super-user may select preload more than 3.
289+.TP
290+\fB-L\fR
291+Suppress loopback of multicast packets. This flag only applies if the ping
292+destination is a multicast address.
293+.TP
294+\fB-n\fR
295+Numeric output only.
296+No attempt will be made to lookup symbolic names for host addresses.
297+.TP
298+\fB-p \fIpattern\fB\fR
299+You may specify up to 16 ``pad'' bytes to fill out the packet you send.
300+This is useful for diagnosing data-dependent problems in a network.
301+For example, \fB-p ff\fR will cause the sent packet
302+to be filled with all ones.
303+.TP
304+\fB-Q \fItos\fB\fR
305+Set Quality of Service -related bits in ICMP datagrams.
306+\fItos\fR can be either decimal or hex number.
307+Traditionally (RFC1349), these have been interpreted as: 0 for reserved
308+(currently being redefined as congestion control), 1-4 for Type of Service
309+and 5-7 for Precedence.
310+Possible settings for Type of Service are: minimal cost: 0x02,
311+reliability: 0x04, throughput: 0x08, low delay: 0x10. Multiple TOS bits
312+should not be set simultaneously. Possible settings for
313+special Precedence range from priority (0x20) to net control (0xe0). You
314+must be root (CAP_NET_ADMIN capability) to use Critical or
315+higher precedence value. You cannot set
316+bit 0x01 (reserved) unless ECN has been enabled in the kernel.
317+In RFC2474, these fields has been redefined as 8-bit Differentiated
318+Services (DS), consisting of: bits 0-1 of separate data (ECN will be used,
319+here), and bits 2-7 of Differentiated Services Codepoint (DSCP).
320+.TP
321+\fB-q\fR
322+Quiet output.
323+Nothing is displayed except the summary lines at startup time and
324+when finished.
325+.TP
326+\fB-R\fR
327+Record route.
328+Includes the RECORD_ROUTE option in the ECHO_REQUEST
329+packet and displays the route buffer on returned packets.
330+Note that the IP header is only large enough for nine such routes.
331+Many hosts ignore or discard this option.
332+.TP
333+\fB-r\fR
334+Bypass the normal routing tables and send directly to a host on an attached
335+interface.
336+If the host is not on a directly-attached network, an error is returned.
337+This option can be used to ping a local host through an interface
338+that has no route through it provided the option \fB-I\fR is also
339+used.
340+.TP
341+\fB-s \fIpacketsize\fB\fR
342+Specifies the number of data bytes to be sent.
343+The default is 56, which translates into 64 ICMP
344+data bytes when combined with the 8 bytes of ICMP header data.
345+.TP
346+\fB-S \fIsndbuf\fB\fR
347+Set socket sndbuf. If not specified, it is selected to buffer
348+not more than one packet.
349+.TP
350+\fB-t \fIttl\fB\fR
351+Set the IP Time to Live.
352+.TP
353+\fB-T \fItimestamp option\fB\fR
354+Set special IP timestamp options.
355+\fItimestamp option\fR may be either
356+\fItsonly\fR (only timestamps),
357+\fItsandaddr\fR (timestamps and addresses) or
358+\fItsprespec host1 [host2 [host3 [host4]]]\fR
359+(timestamp prespecified hops).
360+.TP
361+\fB-M \fIhint\fB\fR
362+Select Path MTU Discovery strategy.
363+\fIhint\fR may be either \fIdo\fR
364+(prohibit fragmentation, even local one),
365+\fIwant\fR (do PMTU discovery, fragment locally when packet size
366+is large), or \fIdont\fR (do not set DF flag).
367+.TP
368+\fB-U\fR
369+Print full user-to-user latency (the old behaviour). Normally
370+\fBping\fR
371+prints network round trip time, which can be different
372+f.e. due to DNS failures.
373+.TP
374+\fB-v\fR
375+Verbose output.
376+.TP
377+\fB-V\fR
378+Show version and exit.
379+.TP
380+\fB-w \fIdeadline\fB\fR
381+Specify a timeout, in seconds, before
382+\fBping\fR
383+exits regardless of how many
384+packets have been sent or received. In this case
385+\fBping\fR
386+does not stop after
387+\fIcount\fR
388+packet are sent, it waits either for
389+\fIdeadline\fR
390+expire or until
391+\fIcount\fR
392+probes are answered or for some error notification from network.
393+.TP
394+\fB-W \fItimeout\fB\fR
395+Time to wait for a response, in seconds. The option affects only timeout
396+in absense of any responses, otherwise \fBping\fR waits for two RTTs.
397+.PP
398+When using \fBping\fR for fault isolation, it should first be run
399+on the local host, to verify that the local network interface is up
400+and running. Then, hosts and gateways further and further away should be
401+``pinged''. Round-trip times and packet loss statistics are computed.
402+If duplicate packets are received, they are not included in the packet
403+loss calculation, although the round trip time of these packets is used
404+in calculating the minimum/average/maximum round-trip time numbers.
405+When the specified number of packets have been sent (and received) or
406+if the program is terminated with a
407+SIGINT, a brief summary is displayed. Shorter current statistics
408+can be obtained without termination of process with signal
409+SIGQUIT.
410+.PP
411+If \fBping\fR does not receive any reply packets at all it will
412+exit with code 1. If a packet
413+\fIcount\fR
414+and
415+\fIdeadline\fR
416+are both specified, and fewer than
417+\fIcount\fR
418+packets are received by the time the
419+\fIdeadline\fR
420+has arrived, it will also exit with code 1.
421+On other error it exits with code 2. Otherwise it exits with code 0. This
422+makes it possible to use the exit code to see if a host is alive or
423+not.
424+.PP
425+This program is intended for use in network testing, measurement and
426+management.
427+Because of the load it can impose on the network, it is unwise to use
428+\fBping\fR during normal operations or from automated scripts.
429+.SH "ICMP PACKET DETAILS"
430+.PP
431+An IP header without options is 20 bytes.
432+An ICMP ECHO_REQUEST packet contains an additional 8 bytes worth
433+of ICMP header followed by an arbitrary amount of data.
434+When a \fIpacketsize\fR is given, this indicated the size of this
435+extra piece of data (the default is 56). Thus the amount of data received
436+inside of an IP packet of type ICMP ECHO_REPLY will always be 8 bytes
437+more than the requested data space (the ICMP header).
438+.PP
439+If the data space is at least of size of struct timeval
440+\fBping\fR uses the beginning bytes of this space to include
441+a timestamp which it uses in the computation of round trip times.
442+If the data space is shorter, no round trip times are given.
443+.SH "DUPLICATE AND DAMAGED PACKETS"
444+.PP
445+\fBping\fR will report duplicate and damaged packets.
446+Duplicate packets should never occur, and seem to be caused by
447+inappropriate link-level retransmissions.
448+Duplicates may occur in many situations and are rarely (if ever) a
449+good sign, although the presence of low levels of duplicates may not
450+always be cause for alarm.
451+.PP
452+Damaged packets are obviously serious cause for alarm and often
453+indicate broken hardware somewhere in the
454+\fBping\fR packet's path (in the network or in the hosts).
455+.SH "TRYING DIFFERENT DATA PATTERNS"
456+.PP
457+The (inter)network layer should never treat packets differently depending
458+on the data contained in the data portion.
459+Unfortunately, data-dependent problems have been known to sneak into
460+networks and remain undetected for long periods of time.
461+In many cases the particular pattern that will have problems is something
462+that doesn't have sufficient ``transitions'', such as all ones or all
463+zeros, or a pattern right at the edge, such as almost all zeros.
464+It isn't necessarily enough to specify a data pattern of all zeros (for
465+example) on the command line because the pattern that is of interest is
466+at the data link level, and the relationship between what you type and
467+what the controllers transmit can be complicated.
468+.PP
469+This means that if you have a data-dependent problem you will probably
470+have to do a lot of testing to find it.
471+If you are lucky, you may manage to find a file that either can't be sent
472+across your network or that takes much longer to transfer than other
473+similar length files.
474+You can then examine this file for repeated patterns that you can test
475+using the \fB-p\fR option of \fBping\fR.
476+.SH "TTL DETAILS"
477+.PP
478+The TTL value of an IP packet represents the maximum number of IP routers
479+that the packet can go through before being thrown away.
480+In current practice you can expect each router in the Internet to decrement
481+the TTL field by exactly one.
482+.PP
483+The TCP/IP specification states that the TTL field for TCP
484+packets should be set to 60, but many systems use smaller values
485+(4.3 BSD uses 30, 4.2 used 15).
486+.PP
487+The maximum possible value of this field is 255, and most Unix systems set
488+the TTL field of ICMP ECHO_REQUEST packets to 255.
489+This is why you will find you can ``ping'' some hosts, but not reach them
490+with
491+\fBtelnet\fR(1)
492+or
493+\fBftp\fR(1).
494+.PP
495+In normal operation ping prints the ttl value from the packet it receives.
496+When a remote system receives a ping packet, it can do one of three things
497+with the TTL field in its response:
498+.TP 0.2i
499+\(bu
500+Not change it; this is what Berkeley Unix systems did before the
501+4.3BSD Tahoe release. In this case the TTL value in the received packet
502+will be 255 minus the number of routers in the round-trip path.
503+.TP 0.2i
504+\(bu
505+Set it to 255; this is what current Berkeley Unix systems do.
506+In this case the TTL value in the received packet will be 255 minus the
507+number of routers in the path \fBfrom\fR
508+the remote system \fBto\fR the \fBping\fRing host.
509+.TP 0.2i
510+\(bu
511+Set it to some other value. Some machines use the same value for
512+ICMP packets that they use for TCP packets, for example either 30 or 60.
513+Others may use completely wild values.
514+.SH "BUGS"
515+.TP 0.2i
516+\(bu
517+Many Hosts and Gateways ignore the RECORD_ROUTE option.
518+.TP 0.2i
519+\(bu
520+The maximum IP header length is too small for options like
521+RECORD_ROUTE to be completely useful.
522+There's not much that that can be done about this, however.
523+.TP 0.2i
524+\(bu
525+Flood pinging is not recommended in general, and flood pinging the
526+broadcast address should only be done under very controlled conditions.
527+.SH "SEE ALSO"
528+.PP
529+\fBnetstat\fR(1),
530+\fBifconfig\fR(8).
531+.SH "HISTORY"
532+.PP
533+The \fBping\fR command appeared in 4.3BSD.
534+.PP
535+The version described here is its descendant specific to Linux.
536+.SH "SECURITY"
537+.PP
538+\fBping\fR requires CAP_NET_RAWIO capability
539+to be executed. It may be used as set-uid root.
540+.SH "AVAILABILITY"
541+.PP
542+\fBping\fR is part of \fIiputils\fR package
543+and the latest versions are available in source form at
544+http://www.skbuff.net/iputils/iputils-current.tar.bz2.
[8201ceeb]545diff -Naur doc/rdisc.8 doc/rdisc.8
546--- doc/rdisc.8 1969-12-31 16:00:00.000000000 -0800
547+++ doc/rdisc.8 2009-02-18 23:20:33.249183964 -0800
[52f035d]548@@ -0,0 +1,110 @@
549+.\" This manpage has been automatically generated by docbook2man
550+.\" from a DocBook document. This tool can be found at:
551+.\" <http://shell.ipoline.com/~elmert/comp/docbook2X/>
552+.\" Please send any bug reports, improvements, comments, patches,
553+.\" etc. to Steve Cheng <steve@ggi-project.org>.
554+.TH "RDISC" "8" "18 February 2009" "iputils-071127" "System Manager's Manual: iputils"
555+.SH NAME
556+rdisc \- network router discovery daemon
557+.SH SYNOPSIS
558+
559+\fBrdisc\fR [\fB-abdfstvV\fR] [\fB\fIsend_address\fB\fR] [\fB\fIreceive_address\fB\fR]
560+
561+.SH "DESCRIPTION"
562+.PP
563+\fBrdisc\fR implements client side of the ICMP router discover protocol.
564+\fBrdisc\fR is invoked at boot time to populate the network
565+routing tables with default routes.
566+.PP
567+\fBrdisc\fR listens on the ALL_HOSTS (224.0.0.1) multicast address
568+(or \fIreceive_address\fR provided it is given)
569+for ROUTER_ADVERTISE messages from routers. The received
570+messages are handled by first ignoring those listed router addresses
571+with which the host does not share a network. Among the remaining addresses
572+the ones with the highest preference are selected as default routers
573+and a default route is entered in the kernel routing table
574+for each one of them.
575+.PP
576+Optionally, \fBrdisc\fR can avoid waiting for routers to announce
577+themselves by sending out a few ROUTER_SOLICITATION messages
578+to the ALL_ROUTERS (224.0.0.2) multicast address
579+(or \fIsend_address\fR provided it is given)
580+when it is started.
581+.PP
582+A timer is associated with each router address and the address will
583+no longer be considered for inclusion in the the routing tables if the
584+timer expires before a new
585+\fBadvertise\fR message is received from the router.
586+The address will also be excluded from consideration if the host receives an
587+\fBadvertise\fR
588+message with the preference being maximally negative.
589+.PP
590+Server side of router discovery protocol is supported by Cisco IOS
591+and by any more or less complete UNIX routing daemon, f.e \fBgated\fR.
592+.SH "OPTIONS"
593+.TP
594+\fB-a\fR
595+Accept all routers independently of the preference they have in their
596+\fBadvertise\fR messages.
597+Normally \fBrdisc\fR only accepts (and enters in the kernel routing
598+tables) the router or routers with the highest preference.
599+.TP
600+\fB-b\fR
601+Opposite to \fB-a\fR, i.e. install only router with the best
602+preference value. It is default behaviour.
603+.TP
604+\fB-d\fR
605+Send debugging messages to syslog.
606+.TP
607+\fB-f\fR
608+Run \fBrdisc\fR forever even if no routers are found.
609+Normally \fBrdisc\fR gives up if it has not received any
610+\fBadvertise\fR message after after soliciting three times,
611+in which case it exits with a non-zero exit code.
612+If \fB-f\fR is not specified in the first form then
613+\fB-s\fR must be specified.
614+.TP
615+\fB-s\fR
616+Send three \fBsolicitation\fR messages initially to quickly discover
617+the routers when the system is booted.
618+When \fB-s\fR is specified \fBrdisc\fR
619+exits with a non-zero exit code if it can not find any routers.
620+This can be overridden with the \fB-f\fR option.
621+.TP
622+\fB-t\fR
623+Test mode. Do not go to background.
624+.TP
625+\fB-v\fR
626+Be verbose i.e. send lots of debugging messages to syslog.
627+.TP
628+\fB-V\fR
629+Print version and exit.
630+.SH "HISTORY"
631+.PP
632+This program was developed by Sun Microsystems (see copyright
633+notice in source file). It was ported to Linux by
634+Alexey Kuznetsov
635+<kuznet@ms2.inr.ac.ru>.
636+It is now maintained by
637+YOSHIFUJI Hideaki
638+<yoshfuji@skbuff.net>.
639+.SH "SEE ALSO"
640+.PP
641+\fBicmp\fR(7),
642+\fBinet\fR(7),
643+\fBping\fR(8).
644+.SH "REFERENCES"
645+.PP
646+Deering, S.E.,ed "ICMP Router Discovery Messages",
647+RFC1256, Network Information Center, SRI International,
648+Menlo Park, Calif., September 1991.
649+.SH "SECURITY"
650+.PP
651+\fBrdisc\fR requires CAP_NET_RAWIO to listen
652+and send ICMP messages and capability CAP_NET_ADMIN
653+to update routing tables.
654+.SH "AVAILABILITY"
655+.PP
656+\fBrdisc\fR is part of \fIiputils\fR package
657+and the latest versions are available in source form at
658+http://www.skbuff.net/iputils/iputils-current.tar.bz2.
[8201ceeb]659diff -Naur doc/tracepath.8 doc/tracepath.8
660--- doc/tracepath.8 1969-12-31 16:00:00.000000000 -0800
661+++ doc/tracepath.8 2009-02-18 23:21:37.765316105 -0800
[52f035d]662@@ -0,0 +1,94 @@
663+.\" This manpage has been automatically generated by docbook2man
664+.\" from a DocBook document. This tool can be found at:
665+.\" <http://shell.ipoline.com/~elmert/comp/docbook2X/>
666+.\" Please send any bug reports, improvements, comments, patches,
667+.\" etc. to Steve Cheng <steve@ggi-project.org>.
668+.TH "TRACEPATH" "8" "18 February 2009" "iputils-071127" "System Manager's Manual: iputils"
669+.SH NAME
670+tracepath, tracepath6 \- traces path to a network host discovering MTU along this path
671+.SH SYNOPSIS
672+
673+\fBtracepath\fR [\fB-n\fR] [\fB-l \fIpktlen\fB\fR] \fB\fIdestination\fB\fR [\fB\fIport\fB\fR]
674+
675+.SH "DESCRIPTION"
676+.PP
677+It traces path to \fIdestination\fR discovering MTU along this path.
678+It uses UDP port \fIport\fR or some random port.
679+It is similar to \fBtraceroute\fR, only does not not require superuser
680+privileges and has no fancy options.
681+.PP
682+\fBtracepath6\fR is good replacement for \fBtraceroute6\fR
683+and classic example of application of Linux error queues.
684+The situation with \fBtracepath\fR is worse, because commercial
685+IP routers do not return enough information in icmp error messages.
686+Probably, it will change, when they will be updated.
687+For now it uses Van Jacobson's trick, sweeping a range
688+of UDP ports to maintain trace history.
689+.SH "OPTIONS"
690+.TP
691+\fB-n\fR
692+Do not look up host names. Only print IP addresses numerically.
693+.TP
694+\fB-l\fR
695+Sets the initial packet length to \fIpktlen\fR instead of
696+65536 for \fBtracepath\fR or 128000 for \fBtracepath6\fR.
697+.SH "OUTPUT"
698+.PP
699+
700+.nf
701+root@mops:~ # tracepath6 3ffe:2400:0:109::2
702+ 1?: [LOCALHOST] pmtu 1500
703+ 1: dust.inr.ac.ru 0.411ms
704+ 2: dust.inr.ac.ru asymm 1 0.390ms pmtu 1480
705+ 2: 3ffe:2400:0:109::2 463.514ms reached
706+ Resume: pmtu 1480 hops 2 back 2
707+.fi
708+.PP
709+The first column shows TTL of the probe, followed by colon.
710+Usually value of TTL is obtained from reply from network,
711+but sometimes reply does not contain necessary information and
712+we have to guess it. In this case the number is followed by ?.
713+.PP
714+The second column shows the network hop, which replied to the probe.
715+It is either address of router or word [LOCALHOST], if
716+the probe was not sent to the network.
717+.PP
718+The rest of line shows miscellaneous information about path to
719+the correspinding hetwork hop. As rule it contains value of RTT.
720+Additionally, it can show Path MTU, when it changes.
721+If the path is asymmetric
722+or the probe finishes before it reach prescribed hop, difference
723+between number of hops in forward and backward direction is shown
724+folloing keyword async. This information is not reliable.
725+F.e. the third line shows asymmetry of 1, it is because the first probe
726+with TTL of 2 was rejected at the first hop due to Path MTU Discovery.
727+.PP
[8d00c46]728+The last line summarizes information about all the path to the destination,
[52f035d]729+it shows detected Path MTU, amount of hops to the destination and our
730+guess about amount of hops from the destination to us, which can be
731+different when the path is asymmetric.
732+.SH "SEE ALSO"
733+.PP
734+\fBtraceroute\fR(8),
735+\fBtraceroute6\fR(8),
736+\fBping\fR(8).
737+.SH "AUTHOR"
738+.PP
739+\fBtracepath\fR was written by
740+Alexey Kuznetsov
741+<kuznet@ms2.inr.ac.ru>.
742+.SH "SECURITY"
743+.PP
744+No security issues.
745+.PP
746+This lapidary deserves to be elaborated.
747+\fBtracepath\fR is not a privileged program, unlike
748+\fBtraceroute\fR, \fBping\fR and other beasts of this kind.
749+\fBtracepath\fR may be executed by everyone who has some access
750+to network, enough to send UDP datagrams to investigated destination
751+using given port.
752+.SH "AVAILABILITY"
753+.PP
754+\fBtracepath\fR is part of \fIiputils\fR package
755+and the latest versions are available in source form at
756+http://www.skbuff.net/iputils/iputils-current.tar.bz2.
[8201ceeb]757diff -Naur doc/traceroute6.8 doc/traceroute6.8
758--- doc/traceroute6.8 1969-12-31 16:00:00.000000000 -0800
759+++ doc/traceroute6.8 2009-02-18 23:20:33.249183964 -0800
[52f035d]760@@ -0,0 +1,42 @@
761+.\" This manpage has been automatically generated by docbook2man
762+.\" from a DocBook document. This tool can be found at:
763+.\" <http://shell.ipoline.com/~elmert/comp/docbook2X/>
764+.\" Please send any bug reports, improvements, comments, patches,
765+.\" etc. to Steve Cheng <steve@ggi-project.org>.
766+.TH "TRACEROUTE6" "8" "18 February 2009" "iputils-071127" "System Manager's Manual: iputils"
767+.SH NAME
768+traceroute6 \- traces path to a network host
769+.SH SYNOPSIS
770+
771+\fBtraceroute6\fR [\fB-dnrvV\fR] [\fB-i \fIinterface\fB\fR] [\fB-m \fImax_ttl\fB\fR] [\fB-p \fIport\fB\fR] [\fB-q \fImax_probes\fB\fR] [\fB-s \fIsource\fB\fR] [\fB-w \fIwait time\fB\fR] \fB\fIdestination\fB\fR [\fB\fIsize\fB\fR]
772+
773+.SH "DESCRIPTION"
774+.PP
775+Description can be found in
776+\fBtraceroute\fR(8),
777+all the references to IP replaced to IPv6. It is needless to copy
778+the description from there.
779+.SH "SEE ALSO"
780+.PP
781+\fBtraceroute\fR(8),
782+\fBtracepath\fR(8),
783+\fBping\fR(8).
784+.SH "HISTORY"
785+.PP
786+This program has long history. Author of \fBtraceroute\fR
787+is Van Jacobson and it first appeared in 1988. This clone is
788+based on a port of \fBtraceroute\fR to IPv6 published
789+in NRL IPv6 distribution in 1996. In turn, it was ported
790+to Linux by Pedro Roque. After this it was kept in sync by
791+Alexey Kuznetsov
792+<kuznet@ms2.inr.ac.ru>. And eventually entered
793+\fBiputils\fR package.
794+.SH "SECURITY"
795+.PP
796+\fBtracepath6\fR requires CAP_NET_RAWIO capability
797+to be executed. It is safe to be used as set-uid root.
798+.SH "AVAILABILITY"
799+.PP
800+\fBtraceroute6\fR is part of \fIiputils\fR package
801+and the latest versions are available in source form at
802+http://www.skbuff.net/iputils/iputils-current.tar.bz2.
[8d00c46]803
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