| [52f035d] | 1 | Submitted By: Jim Gifford <jim at cross-lfs dot org> | 
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|  | 2 | Date: 2009-02-18 | 
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|  | 3 | Initial Package Version: s20071127 | 
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|  | 4 | Upstream Status: Unknown | 
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|  | 5 | Origin: Jim Gifford | 
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|  | 6 | Description: Provides the man pages (adding docbook2man with all its | 
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|  | 7 | dependencies would be a major addition to the book, so I built it | 
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| [8d00c46] | 8 | -once- on a completed system and saved the data). | 
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| [52f035d] | 9 |  | 
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| [8201ceeb] | 10 | diff -Naur doc/arping.8 doc/arping.8 | 
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|  | 11 | --- doc/arping.8        1969-12-31 16:00:00.000000000 -0800 | 
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|  | 12 | +++ doc/arping.8        2009-02-18 23:20:33.249183964 -0800 | 
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| [52f035d] | 13 | @@ -0,0 +1,110 @@ | 
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|  | 14 | +.\" This manpage has been automatically generated by docbook2man | 
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|  | 15 | +.\" from a DocBook document.  This tool can be found at: | 
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|  | 16 | +.\" <http://shell.ipoline.com/~elmert/comp/docbook2X/> | 
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|  | 17 | +.\" Please send any bug reports, improvements, comments, patches, | 
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|  | 18 | +.\" etc. to Steve Cheng <steve@ggi-project.org>. | 
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|  | 19 | +.TH "ARPING" "8" "18 February 2009" "iputils-071127" "System Manager's Manual: iputils" | 
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|  | 20 | +.SH NAME | 
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|  | 21 | +arping \- send ARP REQUEST to a neighbour host | 
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|  | 22 | +.SH SYNOPSIS | 
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|  | 23 | + | 
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|  | 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 | 
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|  | 25 | + | 
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|  | 26 | +.SH "DESCRIPTION" | 
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|  | 27 | +.PP | 
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|  | 28 | +Ping \fIdestination\fR on device \fIinterface\fR by ARP packets, | 
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|  | 29 | +using source address \fIsource\fR. | 
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|  | 30 | +.SH "OPTIONS" | 
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|  | 31 | +.TP | 
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|  | 32 | +\fB-A\fR | 
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|  | 33 | +The same as \fB-U\fR, but ARP REPLY packets used instead | 
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|  | 34 | +of ARP REQUEST. | 
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|  | 35 | +.TP | 
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|  | 36 | +\fB-b\fR | 
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|  | 37 | +Send only MAC level broadcasts. Normally \fBarping\fR starts | 
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|  | 38 | +from sending broadcast, and switch to unicast after reply received. | 
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|  | 39 | +.TP | 
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|  | 40 | +\fB-c \fIcount\fB\fR | 
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|  | 41 | +Stop after sending \fIcount\fR ARP REQUEST | 
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|  | 42 | +packets. With | 
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|  | 43 | +\fIdeadline\fR | 
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|  | 44 | +option, \fBarping\fR waits for | 
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|  | 45 | +\fIcount\fR ARP REPLY packets, until the timeout expires. | 
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|  | 46 | +.TP | 
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|  | 47 | +\fB-D\fR | 
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|  | 48 | +Duplicate address detection mode (DAD). See | 
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|  | 49 | +RFC2131, 4.4.1. | 
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|  | 50 | +Returns 0, if DAD succeeded i.e. no replies are received | 
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|  | 51 | +.TP | 
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|  | 52 | +\fB-f\fR | 
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|  | 53 | +Finish after the first reply confirming that target is alive. | 
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|  | 54 | +.TP | 
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|  | 55 | +\fB-I \fIinterface\fB\fR | 
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|  | 56 | +Name of network device where to send ARP REQUEST packets. This option | 
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|  | 57 | +is required. | 
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|  | 58 | +.TP | 
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|  | 59 | +\fB-h\fR | 
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|  | 60 | +Print help page and exit. | 
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|  | 61 | +.TP | 
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|  | 62 | +\fB-q\fR | 
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|  | 63 | +Quiet output. Nothing is displayed. | 
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|  | 64 | +.TP | 
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|  | 65 | +\fB-s \fIsource\fB\fR | 
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|  | 66 | +IP source address to use in ARP packets. | 
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|  | 67 | +If this option is absent, source address is: | 
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|  | 68 | +.RS | 
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|  | 69 | +.TP 0.2i | 
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|  | 70 | +\(bu | 
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|  | 71 | +In DAD mode (with option \fB-D\fR) set to 0.0.0.0. | 
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|  | 72 | +.TP 0.2i | 
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|  | 73 | +\(bu | 
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|  | 74 | +In Unsolicited ARP mode (with options \fB-U\fR or \fB-A\fR) | 
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|  | 75 | +set to \fIdestination\fR. | 
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|  | 76 | +.TP 0.2i | 
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|  | 77 | +\(bu | 
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|  | 78 | +Otherwise, it is calculated from routing tables. | 
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|  | 79 | +.RE | 
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|  | 80 | +.TP | 
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|  | 81 | +\fB-U\fR | 
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|  | 82 | +Unsolicited ARP mode to update neighbours' ARP caches. | 
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|  | 83 | +No replies are expected. | 
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|  | 84 | +.TP | 
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|  | 85 | +\fB-V\fR | 
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|  | 86 | +Print version of the program and exit. | 
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|  | 87 | +.TP | 
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|  | 88 | +\fB-w \fIdeadline\fB\fR | 
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|  | 89 | +Specify a timeout, in seconds, before | 
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|  | 90 | +\fBarping\fR | 
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|  | 91 | +exits regardless of how many | 
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|  | 92 | +packets have been sent or received. In this case | 
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|  | 93 | +\fBarping\fR | 
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|  | 94 | +does not stop after | 
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|  | 95 | +\fIcount\fR | 
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|  | 96 | +packet are sent, it waits either for | 
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|  | 97 | +\fIdeadline\fR | 
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|  | 98 | +expire or until | 
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|  | 99 | +\fIcount\fR | 
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|  | 100 | +probes are answered. | 
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|  | 101 | +.SH "SEE ALSO" | 
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|  | 102 | +.PP | 
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|  | 103 | +\fBping\fR(8), | 
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|  | 104 | +\fBclockdiff\fR(8), | 
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|  | 105 | +\fBtracepath\fR(8). | 
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|  | 106 | +.SH "AUTHOR" | 
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|  | 107 | +.PP | 
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|  | 108 | +\fBarping\fR was written by | 
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|  | 109 | +Alexey Kuznetsov | 
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|  | 110 | +<kuznet@ms2.inr.ac.ru>. | 
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|  | 111 | +It is now maintained by | 
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|  | 112 | +YOSHIFUJI Hideaki | 
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|  | 113 | +<yoshfuji@skbuff.net>. | 
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|  | 114 | +.SH "SECURITY" | 
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|  | 115 | +.PP | 
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|  | 116 | +\fBarping\fR requires CAP_NET_RAWIO capability | 
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|  | 117 | +to be executed. It is not recommended to be used as set-uid root, | 
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|  | 118 | +because it allows user to modify ARP caches of neighbour hosts. | 
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|  | 119 | +.SH "AVAILABILITY" | 
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|  | 120 | +.PP | 
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|  | 121 | +\fBarping\fR is part of \fIiputils\fR package | 
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|  | 122 | +and the latest versions are  available in source form at | 
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|  | 123 | +http://www.skbuff.net/iputils/iputils-current.tar.bz2. | 
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| [8201ceeb] | 124 | diff -Naur doc/clockdiff.8 doc/clockdiff.8 | 
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|  | 125 | --- doc/clockdiff.8     1969-12-31 16:00:00.000000000 -0800 | 
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|  | 126 | +++ doc/clockdiff.8     2009-02-18 23:20:33.249183964 -0800 | 
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| [52f035d] | 127 | @@ -0,0 +1,81 @@ | 
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|  | 128 | +.\" This manpage has been automatically generated by docbook2man | 
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|  | 129 | +.\" from a DocBook document.  This tool can be found at: | 
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|  | 130 | +.\" <http://shell.ipoline.com/~elmert/comp/docbook2X/> | 
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|  | 131 | +.\" Please send any bug reports, improvements, comments, patches, | 
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|  | 132 | +.\" etc. to Steve Cheng <steve@ggi-project.org>. | 
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|  | 133 | +.TH "CLOCKDIFF" "8" "18 February 2009" "iputils-071127" "System Manager's Manual: iputils" | 
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|  | 134 | +.SH NAME | 
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|  | 135 | +clockdiff \- measure clock difference between hosts | 
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|  | 136 | +.SH SYNOPSIS | 
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|  | 137 | + | 
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|  | 138 | +\fBclockdiff\fR [\fB-o\fR] [\fB-o1\fR] \fB\fIdestination\fB\fR | 
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|  | 139 | + | 
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|  | 140 | +.SH "DESCRIPTION" | 
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|  | 141 | +.PP | 
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|  | 142 | +\fBclockdiff\fR Measures clock difference between us and | 
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|  | 143 | +\fIdestination\fR with 1 msec resolution using ICMP TIMESTAMP | 
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|  | 144 | +[2] | 
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|  | 145 | +packets or, optionally, IP TIMESTAMP option | 
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|  | 146 | +[3] | 
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|  | 147 | +option added to ICMP ECHO. | 
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|  | 148 | +[1] | 
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|  | 149 | +.SH "OPTIONS" | 
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|  | 150 | +.TP | 
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|  | 151 | +\fB-o\fR | 
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|  | 152 | +Use IP TIMESTAMP with ICMP ECHO instead of ICMP TIMESTAMP | 
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|  | 153 | +messages. It is useful with some destinations, which do not support | 
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|  | 154 | +ICMP TIMESTAMP (f.e. Solaris <2.4). | 
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|  | 155 | +.TP | 
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|  | 156 | +\fB-o1\fR | 
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|  | 157 | +Slightly different form of \fB-o\fR, namely it uses three-term | 
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|  | 158 | +IP TIMESTAMP with prespecified hop addresses instead of four term one. | 
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|  | 159 | +What flavor works better depends on target host. Particularly, | 
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|  | 160 | +\fB-o\fR is better for Linux. | 
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|  | 161 | +.SH "WARNINGS" | 
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|  | 162 | +.TP 0.2i | 
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|  | 163 | +\(bu | 
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|  | 164 | +Some nodes (Cisco) use non-standard timestamps, which is allowed | 
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|  | 165 | +by RFC, but makes timestamps mostly useless. | 
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|  | 166 | +.TP 0.2i | 
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|  | 167 | +\(bu | 
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|  | 168 | +Some nodes generate messed timestamps (Solaris>2.4), when | 
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|  | 169 | +run \fBxntpd\fR. Seems, its IP stack uses a corrupted clock source, | 
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|  | 170 | +which is synchronized to time-of-day clock periodically and jumps | 
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|  | 171 | +randomly making timestamps mostly useless. Good news is that you can | 
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|  | 172 | +use NTP in this case, which is even better. | 
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|  | 173 | +.TP 0.2i | 
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|  | 174 | +\(bu | 
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|  | 175 | +\fBclockdiff\fR shows difference in time modulo 24 days. | 
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|  | 176 | +.SH "SEE ALSO" | 
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|  | 177 | +.PP | 
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|  | 178 | +\fBping\fR(8), | 
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|  | 179 | +\fBarping\fR(8), | 
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|  | 180 | +\fBtracepath\fR(8). | 
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|  | 181 | +.SH "REFERENCES" | 
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|  | 182 | +.PP | 
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|  | 183 | +[1] ICMP ECHO, | 
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|  | 184 | +RFC0792, page 14. | 
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|  | 185 | +.PP | 
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|  | 186 | +[2] ICMP TIMESTAMP, | 
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|  | 187 | +RFC0792, page 16. | 
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|  | 188 | +.PP | 
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|  | 189 | +[3] IP TIMESTAMP option, | 
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|  | 190 | +RFC0791, 3.1, page 16. | 
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|  | 191 | +.SH "AUTHOR" | 
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|  | 192 | +.PP | 
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|  | 193 | +\fBclockdiff\fR was compiled by | 
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|  | 194 | +Alexey Kuznetsov | 
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|  | 195 | +<kuznet@ms2.inr.ac.ru>. It was based on code borrowed | 
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|  | 196 | +from BSD \fBtimed\fR daemon. | 
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|  | 197 | +It is now maintained by | 
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|  | 198 | +YOSHIFUJI Hideaki | 
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|  | 199 | +<yoshfuji@skbuff.net>. | 
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|  | 200 | +.SH "SECURITY" | 
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|  | 201 | +.PP | 
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|  | 202 | +\fBclockdiff\fR requires CAP_NET_RAWIO capability | 
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|  | 203 | +to be executed. It is safe to be used as set-uid root. | 
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|  | 204 | +.SH "AVAILABILITY" | 
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|  | 205 | +.PP | 
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|  | 206 | +\fBclockdiff\fR is part of \fIiputils\fR package | 
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|  | 207 | +and the latest versions are  available in source form at | 
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|  | 208 | +http://www.skbuff.net/iputils/iputils-current.tar.bz2. | 
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| [8201ceeb] | 209 | diff -Naur doc/ping.8 doc/ping.8 | 
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|  | 210 | --- doc/ping.8  1969-12-31 16:00:00.000000000 -0800 | 
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|  | 211 | +++ doc/ping.8  2009-02-18 23:20:33.249183964 -0800 | 
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| [52f035d] | 212 | @@ -0,0 +1,332 @@ | 
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|  | 213 | +.\" This manpage has been automatically generated by docbook2man | 
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|  | 214 | +.\" from a DocBook document.  This tool can be found at: | 
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|  | 215 | +.\" <http://shell.ipoline.com/~elmert/comp/docbook2X/> | 
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|  | 216 | +.\" Please send any bug reports, improvements, comments, patches, | 
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|  | 217 | +.\" etc. to Steve Cheng <steve@ggi-project.org>. | 
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|  | 218 | +.TH "PING" "8" "18 February 2009" "iputils-071127" "System Manager's Manual: iputils" | 
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|  | 219 | +.SH NAME | 
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|  | 220 | +ping, ping6 \- send ICMP ECHO_REQUEST to network hosts | 
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|  | 221 | +.SH SYNOPSIS | 
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|  | 222 | + | 
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|  | 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 | 
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|  | 224 | + | 
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|  | 225 | +.SH "DESCRIPTION" | 
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|  | 226 | +.PP | 
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|  | 227 | +\fBping\fR uses the ICMP protocol's mandatory ECHO_REQUEST | 
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|  | 228 | +datagram to elicit an ICMP ECHO_RESPONSE from a host or gateway. | 
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|  | 229 | +ECHO_REQUEST datagrams (``pings'') have an IP and ICMP | 
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|  | 230 | +header, followed by a struct timeval and then an arbitrary | 
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|  | 231 | +number of ``pad'' bytes used to fill out the packet. | 
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|  | 232 | +.SH "OPTIONS" | 
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|  | 233 | +.TP | 
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|  | 234 | +\fB-a\fR | 
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|  | 235 | +Audible ping. | 
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|  | 236 | +.TP | 
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|  | 237 | +\fB-A\fR | 
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|  | 238 | +Adaptive ping. Interpacket interval adapts to round-trip time, so that | 
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|  | 239 | +effectively not more than one (or more, if preload is set) unanswered probes | 
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|  | 240 | +present in the network. Minimal interval is 200msec for not super-user. | 
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|  | 241 | +On networks with low rtt this mode is essentially equivalent to flood mode. | 
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|  | 242 | +.TP | 
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|  | 243 | +\fB-b\fR | 
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|  | 244 | +Allow pinging a broadcast address. | 
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|  | 245 | +.TP | 
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|  | 246 | +\fB-B\fR | 
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|  | 247 | +Do not allow \fBping\fR to change source address of probes. | 
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|  | 248 | +The address is bound to one selected when \fBping\fR starts. | 
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|  | 249 | +.TP | 
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|  | 250 | +\fB-c \fIcount\fB\fR | 
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|  | 251 | +Stop after sending \fIcount\fR ECHO_REQUEST | 
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|  | 252 | +packets. With | 
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|  | 253 | +\fIdeadline\fR | 
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|  | 254 | +option, \fBping\fR waits for | 
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|  | 255 | +\fIcount\fR ECHO_REPLY packets, until the timeout expires. | 
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|  | 256 | +.TP | 
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|  | 257 | +\fB-d\fR | 
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|  | 258 | +Set the SO_DEBUG option on the socket being used. | 
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|  | 259 | +Essentially, this socket option is not used by Linux kernel. | 
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|  | 260 | +.TP | 
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|  | 261 | +\fB-F \fIflow label\fB\fR | 
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|  | 262 | +Allocate and set 20 bit flow label on echo request packets. | 
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|  | 263 | +(Only \fBping6\fR). If value is zero, kernel allocates random flow label. | 
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|  | 264 | +.TP | 
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|  | 265 | +\fB-f\fR | 
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|  | 266 | +Flood ping. For every ECHO_REQUEST sent a period ``.'' is printed, | 
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|  | 267 | +while for ever ECHO_REPLY received a backspace is printed. | 
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|  | 268 | +This provides a rapid display of how many packets are being dropped. | 
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|  | 269 | +If interval is not given, it sets interval to zero and | 
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|  | 270 | +outputs packets as fast as they come back or one hundred times per second, | 
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|  | 271 | +whichever is more. | 
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|  | 272 | +Only the super-user may use this option with zero interval. | 
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|  | 273 | +.TP | 
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|  | 274 | +\fB-i \fIinterval\fB\fR | 
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|  | 275 | +Wait \fIinterval\fR seconds between sending each packet. | 
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|  | 276 | +The default is to wait for one second between each packet normally, | 
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|  | 277 | +or not to wait in flood mode. Only super-user may set interval | 
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|  | 278 | +to values less 0.2 seconds. | 
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|  | 279 | +.TP | 
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|  | 280 | +\fB-I \fIinterface address\fB\fR | 
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|  | 281 | +Set source address to specified interface address. Argument | 
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|  | 282 | +may be numeric IP address or name of device. When pinging IPv6 | 
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|  | 283 | +link-local address this option is required. | 
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|  | 284 | +.TP | 
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|  | 285 | +\fB-l \fIpreload\fB\fR | 
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|  | 286 | +If \fIpreload\fR is specified, | 
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|  | 287 | +\fBping\fR sends that many packets not waiting for reply. | 
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|  | 288 | +Only the super-user may select preload more than 3. | 
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|  | 289 | +.TP | 
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|  | 290 | +\fB-L\fR | 
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|  | 291 | +Suppress loopback of multicast packets.  This flag only applies if the ping | 
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|  | 292 | +destination is a multicast address. | 
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|  | 293 | +.TP | 
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|  | 294 | +\fB-n\fR | 
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|  | 295 | +Numeric output only. | 
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|  | 296 | +No attempt will be made to lookup symbolic names for host addresses. | 
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|  | 297 | +.TP | 
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|  | 298 | +\fB-p \fIpattern\fB\fR | 
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|  | 299 | +You may specify up to 16 ``pad'' bytes to fill out the packet you send. | 
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|  | 300 | +This is useful for diagnosing data-dependent problems in a network. | 
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|  | 301 | +For example, \fB-p ff\fR will cause the sent packet | 
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|  | 302 | +to be filled with all ones. | 
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|  | 303 | +.TP | 
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|  | 304 | +\fB-Q \fItos\fB\fR | 
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|  | 305 | +Set Quality of Service -related bits in ICMP datagrams. | 
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|  | 306 | +\fItos\fR can be either decimal or hex number. | 
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|  | 307 | +Traditionally (RFC1349), these have been interpreted as: 0 for reserved | 
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|  | 308 | +(currently being redefined as congestion control), 1-4 for Type of Service | 
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|  | 309 | +and 5-7 for Precedence. | 
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|  | 310 | +Possible settings for Type of Service are: minimal cost: 0x02, | 
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|  | 311 | +reliability: 0x04, throughput: 0x08, low delay: 0x10.  Multiple TOS bits | 
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|  | 312 | +should not be set simultaneously.  Possible settings for | 
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|  | 313 | +special Precedence range from priority (0x20) to net control (0xe0).  You | 
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|  | 314 | +must be root (CAP_NET_ADMIN capability) to use Critical or | 
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|  | 315 | +higher precedence value.  You cannot set | 
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|  | 316 | +bit 0x01 (reserved) unless ECN has been enabled in the kernel. | 
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|  | 317 | +In RFC2474, these fields has been redefined as 8-bit Differentiated | 
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|  | 318 | +Services (DS), consisting of: bits 0-1 of separate data (ECN will be used, | 
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|  | 319 | +here), and bits 2-7 of Differentiated Services Codepoint (DSCP). | 
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|  | 320 | +.TP | 
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|  | 321 | +\fB-q\fR | 
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|  | 322 | +Quiet output. | 
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|  | 323 | +Nothing is displayed except the summary lines at startup time and | 
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|  | 324 | +when finished. | 
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|  | 325 | +.TP | 
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|  | 326 | +\fB-R\fR | 
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|  | 327 | +Record route. | 
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|  | 328 | +Includes the RECORD_ROUTE option in the ECHO_REQUEST | 
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|  | 329 | +packet and displays the route buffer on returned packets. | 
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|  | 330 | +Note that the IP header is only large enough for nine such routes. | 
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|  | 331 | +Many hosts ignore or discard this option. | 
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|  | 332 | +.TP | 
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|  | 333 | +\fB-r\fR | 
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|  | 334 | +Bypass the normal routing tables and send directly to a host on an attached | 
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|  | 335 | +interface. | 
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|  | 336 | +If the host is not on a directly-attached network, an error is returned. | 
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|  | 337 | +This option can be used to ping a local host through an interface | 
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|  | 338 | +that has no route through it provided the option \fB-I\fR is also | 
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|  | 339 | +used. | 
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|  | 340 | +.TP | 
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|  | 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] | 545 | diff -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] | 659 | diff -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. | 
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|  | 689 | +.SH "OPTIONS" | 
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|  | 690 | +.TP | 
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|  | 691 | +\fB-n\fR | 
|---|
|  | 692 | +Do not look up host names.  Only print IP addresses numerically. | 
|---|
|  | 693 | +.TP | 
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|  | 694 | +\fB-l\fR | 
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|  | 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 | 
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|  | 699 | + | 
|---|
|  | 700 | +.nf | 
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|  | 701 | +root@mops:~ # tracepath6 3ffe:2400:0:109::2 | 
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|  | 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 | 
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|  | 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] | 757 | diff -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 |  | 
|---|