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112 lines
3.3 KiB
Groff
112 lines
3.3 KiB
Groff
.\"
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.\" Copyright (c) 1999, Boris Popov
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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 June 20, 1999
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.Dt EF 4
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.Os
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.Sh NAME
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.Nm ef
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.Nd "pseudo-device driver providing support for multiple Ethernet frame types"
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.Sh SYNOPSIS
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.Cd "device ef"
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.Sh DESCRIPTION
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The
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.Nm
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pseudo-device driver clones each Ethernet type device with four
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additional interfaces.
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Each of them is capable to send or receive only
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one predefined frame type.
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.Pp
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Names for the new interfaces are created by adding a
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.Ar fN
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suffix to an existing device name.
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Where
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.Ar N
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is a device unit which can have one of the following values:
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.Bd -literal -offset indent
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0 interface with an Ethernet_II frame
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1 interface with a Novell Ethernet_802.3 frame
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2 interface with an Ethernet_802.2 frame
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3 interface with an Ethernet_802.2/SNAP frame support.
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.Ed
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.Pp
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For example, device
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.Ar ed0
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will be populated with four devices:
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.Ar ed0f0 ,
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.Ar ed0f1 ,
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.Ar ed0f2
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and
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.Ar ed0f3 .
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.Pp
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After that, each device can be configured as usual:
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.Dl # ifconfig ed0f1 ipx 0x105
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This will configure IPX protocol with network number
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.Ar 0x105
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and
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.Ar Ethernet_802.3
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frame type.
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.Pp
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Please note that it is impossible to configure the IPX protocol on the parent
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.Ar ed0
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device after the
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.Ar if_ef.ko
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driver has been loaded.
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.Pp
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If the parent interface is not configured for any other protocol
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(IP for example), subinterfaces will not function.
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To avoid that, the parent interface should be
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manually marked as
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.Dq up :
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.Dl # ifconfig ed0 up
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.Sh EXAMPLES
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The
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.Nm
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driver can be loaded via the
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.Xr loader.conf 5
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file:
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.Dl if_ef_load="YES"
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.Pp
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In this case, ordinary interface configuration commands can be used
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in the
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.Xr rc.conf 5
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file:
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.Dl network_interfaces="ed2 lo0 tun0 ed2f0 ed2f1"
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.Dl ifconfig_ed2f0_ipx="ipx 0x101"
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.Dl ifconfig_ed2f1_ipx="ipx 0x102"
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.Sh DIAGNOSTICS
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None.
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.Sh CAVEATS
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Avoid to configure the parent Ethernet device for the IPX protocol, after the
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.Nm
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driver is loaded.
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.Sh SEE ALSO
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.Xr ipx 3 ,
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.Xr ifconfig 8
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.Sh AUTHORS
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.An Boris Popov Aq bp@FreeBSD.org .
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