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.\" Hey, EMACS: -*- nroff -*-
.\" First parameter, NAME, should be all caps
.\" Second parameter, SECTION, should be 1-8, maybe w/ subsection
.\" other parameters are allowed: see man(7), man(1)
.TH ETHER-WAKE 8 "March 31, 2003" "Scyld"
.\" Please adjust this date whenever revising the manpage.
.\"
.\" Some roff macros, for reference:
.\" .nh disable hyphenation
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.\" .ad l left justify
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.\" for manpage-specific macros, see man(7)
.SH NAME
ether-wake \- A tool to send a Wake-On-LAN "Magic Packet"
.SH SYNOPSIS
.B ether-wake
.RI [ options ] " Host-ID"
.SH DESCRIPTION
This manual page documents the usage of the
.B ether-wake
command.
.PP
.\" TeX users may be more comfortable with the \fB<whatever>\fP and
.\" \fI<whatever>\fP escape sequences to invode bold face and italics,
.\" respectively.
\fBether-wake\fP is a program that generates and transmits a Wake-On-LAN
(WOL) "Magic Packet", used for restarting machines that have been
soft-powered-down (ACPI D3-warm state). It generates the standard
AMD Magic Packet format, optionally with a password included. The
single required parameter is a station (MAC) address or a host ID that can
be translated to a MAC address by an
.BR ethers (5)
database specified in
.BR nsswitch.conf (5)
.
.SH OPTIONS
\fBether-wake\fP needs a single dash (´-´) in front of options.
A summary of options is included below.
.TP
.B \-b
Send the wake-up packet to the broadcast address.
.TP
.B \-D
Increase the Debug Level.
.TP
.B \-i ifname
Use interface ifname instead of the default "eth0".
.TP
.B \-p passwd
Append a four or six byte password to the packet. Only a few adapters
need or support this. A six byte password may be specified in Ethernet hex
format (00:22:44:66:88:aa) or four byte dotted decimal (192.168.1.1) format.
A four byte password must use the dotted decimal format.
.TP
.B \-V
Show the program version information.
.SH EXIT STATUS
This program returns 0 on success.
A permission failures (e.g. run as a non-root user) results in an exit
status of 2. Unrecognized or invalid parameters result in an exit
status of 3. Failure to retrieve network interface information or send
a packet will result in an exit status of 1.
.SH SEE ALSO
.BR arp (8).
.br
.SH SECURITY
On some non-Linux systems dropping root capability allows the process to be
dumped, traced or debugged.
If someone traces this program, they get control of a raw socket.
Linux handles this safely, but beware when porting this program.
.SH AUTHOR
The etherwake program was written by Donald Becker at Scyld Computing
Corporation for use with the Scyld(\*(Tm) Beowulf System.
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