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5 .TH ETHER-WAKE 8 "March 31, 2003" "Scyld"
6 .\" Please adjust this date whenever revising the manpage.
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18 .SH NAME
19 ether-wake \- A tool to send a Wake-On-LAN "Magic Packet"
20 .SH SYNOPSIS
21 .B ether-wake
22 .RI [ options ] " Host-ID"
23 .SH DESCRIPTION
24 This manual page documents the usage of the
25 .B ether-wake
26 command.
27 .PP
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31 \fBether-wake\fP is a program that generates and transmits a Wake-On-LAN
32 (WOL) "Magic Packet", used for restarting machines that have been
33 soft-powered-down (ACPI D3-warm state). It generates the standard
34 AMD Magic Packet format, optionally with a password included. The
35 single required parameter is a station (MAC) address or a host ID that can
36 be translated to a MAC address by an
37 .BR ethers (5)
38 database specified in
39 .BR nsswitch.conf (5)
40 .
41 .SH OPTIONS
42 \fBether-wake\fP needs a single dash (´-´) in front of options.
43 A summary of options is included below.
44 .TP
45 .B \-b
46 Send the wake-up packet to the broadcast address.
47 .TP
48 .B \-D
49 Increase the Debug Level.
50 .TP
51 .B \-i ifname
52 Use interface ifname instead of the default "eth0".
53 .TP
54 .B \-p passwd
55 Append a four or six byte password to the packet. Only a few adapters
56 need or support this. A six byte password may be specified in Ethernet hex
57 format (00:22:44:66:88:aa) or four byte dotted decimal (192.168.1.1) format.
58 A four byte password must use the dotted decimal format.
59
60 .TP
61 .B \-V
62 Show the program version information.
63
64 .SH EXIT STATUS
65 This program returns 0 on success.
66 A permission failures (e.g. run as a non-root user) results in an exit
67 status of 2. Unrecognized or invalid parameters result in an exit
68 status of 3. Failure to retrieve network interface information or send
69 a packet will result in an exit status of 1.
70
71 .SH SEE ALSO
72 .BR arp (8).
73 .br
74 .SH SECURITY
75 On some non-Linux systems dropping root capability allows the process to be
76 dumped, traced or debugged.
77 If someone traces this program, they get control of a raw socket.
78 Linux handles this safely, but beware when porting this program.
79 .SH AUTHOR
80 The etherwake program was written by Donald Becker at Scyld Computing
81 Corporation for use with the Scyld(\*(Tm) Beowulf System.