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208 lines
4.8 KiB
Groff
208 lines
4.8 KiB
Groff
.\"-
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.\" Copyright (c) 1999-2001 Brian Somers <brian@Awfulhak.org>
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.\" All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" $FreeBSD$
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.\"
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.Dd November 8, 1999
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.Dt PPPOED 8
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.Os
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.Sh NAME
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.Nm pppoed
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.Nd handle incoming PPP over Ethernet connections
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.Sh SYNOPSIS
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.Nm
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.Op Fl Fd\&
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.Op Fl P Ar pidfile
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.Op Fl a Ar name
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.Op Fl e Ar exec | Fl l Ar label
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.Op Fl n Ar ngdebug
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.Op Fl p Ar provider
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.Ar interface
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.Sh DESCRIPTION
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The
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.Nm
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program listens to the given
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.Ar interface
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for PPP over Ethernet (PPPoE) service request packets, and actions them
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by negotiating a session then envoking a
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.Em PPP
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program.
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The negotiation is implemented by the
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.Dq pppoe
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netgraph node.
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See
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.Xr ng_pppoe 4
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for details.
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.Pp
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.Nm
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will only offer services to clients requesting services from the given
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.Ar provider ,
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which is taken as an empty name if not provided.
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If a provider name of
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.Dq \&*
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is given, any PPPoE requests will be offered service.
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.Pp
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The supplied
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.Ar name
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will be given as the access concentrator name when establishing the connection.
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If no
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.Ar name
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is given, the current base hostname is used.
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.Pp
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After receiving a request (PADI) from the PPPoE netgraph node,
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.Nm
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.Xr fork 2 Ns No s
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a child process and returns to service further requests.
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The child process offers service
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(using
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.Ar name )
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and waits for a
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.Dv SUCCESS
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indication from the PPPoE node.
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On receipt of the SUCCESS indication,
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.Nm
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will execute
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.Pp
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.D1 Ic exec /usr/sbin/ppp -direct Ar label
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.Pp
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as a shell sub-process.
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If
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.Ar label
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has not been specified, it defaults to
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.Ar provider .
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It is possible to specify another command using the
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.Ar exec
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argument.
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This is mandatory if
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.Ar provider
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and
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.Ar label
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are not given.
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The child process will have standard input and standard output
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attached to the same
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.Xr netgraph 4
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data socket
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(see
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.Xr ng_socket 4 )
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when started.
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.Pp
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Upon invocation,
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.Nm
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will attach a
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.Dq pppoe
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netgraph node to the relevant
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.Dq ether
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node using
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.Dq Ar interface Ns No \&:
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as the node name, and then connect that
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.Dq pppoe
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node to a local
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.Dq socket
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node.
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If the
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.Fl F
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flag has not been given,
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.Nm
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will then go into the background and disassociate itself from the controlling
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terminal.
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When the
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.Fl F
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flag is given,
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.Nm
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stays in the foreground.
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.Pp
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If the
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.Fl d
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flag is given, additional diagnostics are provided (see the
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.Sx DIAGNOSTICS
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section below).
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If the
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.Fl n
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flag is given,
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.Fn NgSetDebug
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is called with an argument of
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.Ar ngdebug .
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.Pp
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If
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.Ar pidfile
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is given,
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.Nm
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will write its process ID to this file on startup.
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.Sh DIAGNOSTICS
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After creating the necessary
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.Xr netgraph 4
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nodes as described above,
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.Nm
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uses
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.Xr syslogd 8
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to report all incoming connections.
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If the
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.Fl d
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flag is given,
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.Nm
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will report on the child processes creation of a new netgraph socket, it's
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service offer and the invocation of the
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.Em PPP
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program.
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If the
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.Fl n
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option is given, netgraph diagnostic messages are also redirected to
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.Xr syslogd 8 .
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.Pp
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It is sometimes useful to add the following to
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.Pa /etc/syslog.conf :
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.Pp
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.Dl !pppoed
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.Dl "*.* /var/log/pppoed.log
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.Pp
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and the following to
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.Pa /etc/newsyslog.conf :
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.Pp
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.Dl "/var/log/pppoed.log 640 3 100 * Z
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.Sh SEE ALSO
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.Xr NgSetDebug 3 ,
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.Xr netgraph 4 ,
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.Xr ng_ether 4 ,
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.Xr ng_pppoe 4 ,
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.Xr ng_socket 4 ,
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.Xr syslog.conf 5 ,
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.Xr ppp 8 ,
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.Xr syslogd 8
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.Sh BUGS
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If another netgraph node is using the given interface,
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.Nm
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will fail to start.
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This is because
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.Xr netgraph 4
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does not currently allow node chaining.
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This may change in the future.
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.Sh HISTORY
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The
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.Nm
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program was written by
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.An Brian Somers Aq brian@Awfulhak.org
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and first appeared in
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.Fx 3.4 .
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