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.\"
.\" Alaska Communications UDP Echo Tools
.\" Copyright (C) 2022 Alaska Communications
.\"
.\" Redistribution and use in source and binary forms, with or without
.\" modification, are permitted provided that the following conditions are
.\" met:
.\"
.\" 1. Redistributions of source code must retain the above copyright
.\" notice, this list of conditions and the following disclaimer.
.\"
.\" 2. Redistributions in binary form must reproduce the above copyright
.\" notice, this list of conditions and the following disclaimer in the
.\" documentation and/or other materials provided with the distribution.
.\"
.\" 3. Neither the name of the copyright holder nor the names of its
.\" contributors may be used to endorse or promote products derived from
.\" this software without specific prior written permission.
.\"
.\" THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
.\" IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
.\" THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
.\" PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
.\" CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
.\" EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
.\" PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
.\" PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
.\" LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
.\" NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
.\" SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
.\"
.TH "AKCOM-UDPECHOD" "8" "@RELEASE_MONTH@" "Alaska Communications" "Alaska Communications UDP Echo Tools"
.SH NAME
akcom-udpechod - a simple UDP echo server
.SH SYNOPSIS
\fBakcom-udpechod\fR [\fBOPTONS\fR]
.SH DESCRIPTION
\fBakcom-udpechod\fR is simple UDP echo server. Currently \fBakcom-udpechod\fR
processes each packet sequentially which causes all packets received before
previous packets have been processed to be skewed when using either the
\fB-D\fR or \fB-d\fR options.
.SH OPTIONS
.TP 10
\fB-d\fR \fInum\fR, \fB--drop\fR=\fInum\fR,
set the packet drop probability [0-99]. This option should not be used if
multiple clients will be using the same UDP echo server instance.
(default: 0%)
.TP 10
\fB-D\fR \fIusec\fR, \fB--delay\fR=\fIusec\fR
set echo delay range to microseconds. This option should not be used if
multiple clients will be using the same UDP echo server instance.
(default: 0 us)
.TP 10
\fB-e\fB, \fB--echoplus\fR
run as a TR-143 UDPEchoPlus server. This option is not compatible with
RFC 862 UDP echo clients.
.TP 10
\fB-f\fR \fIstr\fR, \fB--facility\fR=\fIstr\fR
set syslog facility (default: daemon)
.TP 10
\fB-g\fR \fIgid\fR, \fB--group\fR=\fIgid\fR
setgid to gid (default: none)
.TP 10
\fB-h\fR, \fB--help\fR
print this help and exit
.TP 10
\fB-l\fR \fIaddr\fR, \fB--listen\fR=\fIaddr\fR
bind to IP address (default: all)
.TP 10
\fB-n\fR, \fB--foreground\fR
do not fork
.TP 10
\fB-p\fR \fIport\fR, \fB--port\fR=\fIport\fR
list on port number (default: 30006)
.TP 10
\fB-P\fR \fIfile\fR, \fB--pidfile\fR=\fIfile\fR
PID file (default: /var/run/akcom-udpechod.pid)
.TP 10
\fB-r\fR, \fB--rfc\fR
run as an RFC 862 compliant echo protocol. This option may be incompatible
with TR-143 UDPEchoPlus clients. This option is compatible with the TR-143
UDPEchoPlus mode of \fBakcom-udpecho\fR (8). (default)
.TP 10
\fB-u\fR \fIuid\fR, \fB--user\fR=\fUuid\fR
setuid to uid (default: none)
.TP 10
\fB-v\fR, \fB--verbose\fR
enable verbose output
.TP 10
\fB-V\fR, \fB--version\fR
print version number and exit
.SH SEE ALSO
.BR akcom-udpecho (8)
.SH AUTHOR
David M. Syzdek <david.syzdek@acsalaska.com>
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