2000-10-09 14:22:51 +00:00
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.\"
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.\" Copyright (c) 2000 Hellmuth Michaelis. 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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.\" $Id: i4bing.4,v 1.1 2000/01/10 19:14:18 hm Exp $
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.\"
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.\" $FreeBSD$
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.\"
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.\" last edit-date: [Mon Jan 10 20:13:11 2000]
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.\"
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.Dd January 10, 2000
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.Dt I4BING 4
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.Os
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.Sh NAME
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.Nm i4bing
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.Nd isdn4bsd NetGraph ISDN B-channel interface driver
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.Sh SYNOPSIS
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.Cd pseudo-device \&"i4bing\&" Op count
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.Sh DESCRIPTION
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The
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.Nm
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driver interfaces the FreeBSD NetGraph subsystem with the
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isdn4bsd package.
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.Pp
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The driver just packs packets received from the NetGraph subsystem without
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anything appended or prepended into raw HDLC packets on the B channel and
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transfers them to a remote site.
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Packets received from the remote site are queued into the NetGraph
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subsystem
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.Pp
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The format of the resulting packet on the B channel is:
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.Pp
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.Dl (HDLC opening flag) (Packet) (CRC) (HDLC closing flag)
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.Pp
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In the case where a Packet for a remote site arrives in the driver and no
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connection has been established yet, the driver communicates with the
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.Xr isdnd 8
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daemon to establish a connection.
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.Pp
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.Sh SEE ALSO
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.Xr isdnd 8
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.Xr isdnd.rc 5
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.Xr netgraph 4
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2000-11-17 11:44:16 +00:00
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.Sh AUTHORS
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2000-10-09 14:22:51 +00:00
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The
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.Nm
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device driver and this manpage were written by
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.An Hellmuth Michaelis Aq hm@kts.org .
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