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+.\" Copyright (c) 1990, 1991 The Regents of the University of California.
+.\" All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" the Systems Programming Group of the University of Utah Computer
+.\" Science Department.
+.\"
+.\" 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. All advertising materials mentioning features or use of this software
+.\"    must display the following acknowledgement:
+.\"	This product includes software developed by the University of
+.\"	California, Berkeley and its contributors.
+.\" 4. Neither the name of the University 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 REGENTS 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 REGENTS 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.
+.\"
+.\"     from: @(#)le.4	5.2 (Berkeley) 3/27/91
+.\"	$Id: le.4,v 1.1 1995/10/18 08:44:28 deraadt Exp $
+.\"
+.Dd March 27, 1991
+.Dt LE 4 hp300
+.Os
+.Sh NAME
+.Nm le
+.Nd
+.Tn HP AMD
+7990
+.Tn LANCE
+Ethernet interface
+.Sh SYNOPSIS
+.Cd "device le0 at scode?"
+.Sh DESCRIPTION
+The
+.Nm le
+interface provides access to a 10 Mb/s Ethernet network via the
+.Tn AMD
+7990
+.Tn LANCE
+Ethernet chip set.
+.Pp
+Each of the host's network addresses
+is specified at boot time with an
+.Dv SIOCSIFADDR
+.Xr ioctl .
+The
+.Xr le
+interface employs the address resolution protocol described in
+.Xr arp 4
+to dynamically map between Internet and Ethernet addresses on the local
+network.
+.Pp
+The use of ``trailer'' encapsulation to minimize copying data on
+input and output is supported by the interface but offers no advantage
+due to the large
+.Tn HP
+page size.
+The use of trailers is negotiated with
+.Tn ARP .
+This negotiation may be disabled, on a per-interface basis,
+by setting the
+.Dv IFF_NOTRAILERS
+flag with an
+.Dv SIOCSIFFLAGS
+.Xr ioctl .
+.Sh DIAGNOSTICS
+.Bl -diag
+.It le%d: hardware address %s.
+This is a normal autoconfiguration message noting the 6 byte physical
+ethernet address of the adapter.
+.Pp
+.It de%d: can't handle af%d.
+The interface was handed
+a message with addresses formatted in an unsuitable address
+family; the packet was dropped.
+.Pp
+The following message indicate a possible hardware error performing
+the indicated operation during autoconfiguration or initialization.
+.Pp
+.It le%d: init timeout, stat = 0x%x.
+The hardware did not respond to an initialize command during reset.
+The reset procedure continues anyway.
+.El
+.Sh SEE ALSO
+.Xr intro 4 ,
+.Xr inet 4 ,
+.Xr arp 4
+.Sh HISTORY
+The
+.Nm le
+driver
+.Ud