472351e13d
.In header.h instead of .Fd #include \*[Lt]header.h\*[Gt] Much easier to read and write, and supported by groff for ages. Okayed by ross.
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.\" $NetBSD: ifmedia.4,v 1.22 2003/04/16 13:35:17 wiz Exp $
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.\"
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.\" Copyright (c) 1998 The NetBSD Foundation, Inc.
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.\" All rights reserved.
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.\"
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.\" This code is derived from software contributed to The NetBSD Foundation
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.\" by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
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.\" NASA Ames Research Center.
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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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.\" 3. All advertising materials mentioning features or use of this software
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.\" must display the following acknowledgement:
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.\" This product includes software developed by the NetBSD
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.\" Foundation, Inc. and its contributors.
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.\" 4. Neither the name of The NetBSD Foundation nor the names of its
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.\" contributors may be used to endorse or promote products derived
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.\" from this software without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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.\" ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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.\" TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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.\" PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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.\" BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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.\" POSSIBILITY OF SUCH DAMAGE.
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.\"
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.Dd July 19, 2000
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.Dt IFMEDIA 4
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.Os
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.Sh NAME
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.Nm ifmedia
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.Nd network interface media settings
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.Sh SYNOPSIS
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.In sys/socket.h
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.In net/if.h
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.In net/if_media.h
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.Sh DESCRIPTION
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The
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.Nm
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interface provides a consistent method for querying and setting
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network interface media and media options. The media is typically
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set using the
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.Xr ifconfig 8
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command.
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.Pp
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There are currently four link types supported by
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.Nm :
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.Bl -tag -offset indent -width IFM_IEEE80211 -compact
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.It Dv IFM_ETHER
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Ethernet
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.It Dv IFM_TOKEN
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Token Ring
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.It Dv IFM_FDDI
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FDDI
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.It Dv IFM_IEEE80211
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IEEE802.11 Wireless LAN
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.El
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.Pp
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The following sections describe the possible media settings for each
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link type. Not all of these are supported by every device; refer to
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your device's manual page for more information.
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.Pp
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The lists below provide the possible names of each media type or option.
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The first name in the list is the canonical name of the media type or
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option. Additional names are acceptable aliases for the media type or
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option.
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.Sh COMMON MEDIA TYPES AND OPTIONS
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The following media types are shared by all link types:
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.Bl -tag -offset indent -width IFM_MANUAL -compact
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.It Dv IFM_AUTO
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Autoselect the best media. [autoselect, auto]
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.It Dv IFM_MANUAL
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Jumper or switch on device selects media. [manual]
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.It Dv IFM_NONE
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Deselect all media. [none]
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.El
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.Pp
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The following media options are shared by all link types:
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.Bl -tag -offset indent -width IFM_FLAG0
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.It Dv IFM_FDX
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Place the device into full-duplex mode. This option only has meaning
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if the device is normally not full-duplex. [full-duplex, fdx]
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.It Dv IFM_HDX
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Place the device into half-duplex mode. This option only has meaning
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if the device is normally not half-duplex. [half-duplex, hdx]
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.It Dv IFM_FLAG0
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Driver-defined flag. [flag0]
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.It Dv IFM_FLAG1
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Driver-defined flag. [flag1]
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.It Dv IFM_FLAG2
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Driver-defined flag. [flag2]
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.It Dv IFM_LOOP
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Place the device into hardware loopback mode. [loopback, hw-loopback, loop]
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.El
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.Sh MEDIA TYPES AND OPTIONS FOR ETHERNET
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The following media types are defined for Ethernet:
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.Bl -tag -offset indent -width IFM_1000_FX
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.It Dv IFM_HPNA_1
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HomePNA 1.0, 1Mb/s. [HomePNA1, HPNA1]
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.It Dv IFM_10_T
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10BASE-T, 10Mb/s over unshielded twisted pair, RJ45 connector. [10baseT,
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UTP, 10UTP]
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.It Dv IFM_10_2
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10BASE2, 10Mb/s over coaxial cable, BNC connector, also called Thinnet.
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[10base2, BNC, 10BNC]
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.It Dv IFM_10_5
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10BASE5, 10Mb/s over 15-wire cables, DB15 connector, also called AUI.
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[10base5, AUI, 10AUI]
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.It Dv IFM_10_STP
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10BASE-STP, 10Mb/s over shielded twisted pair, DB9 connector. [10baseSTP,
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STP, 10STP]
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.It Dv IFM_10_FL
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10BASE-FL, 10Mb/s over fiber optic cables. [10baseFL, FL, 10FL]
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.It Dv IFM_100_TX
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100BASE-TX, 100Mb/s over unshielded twisted pair, RJ45 connector. [100baseTX,
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100TX]
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.It Dv IFM_100_FX
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100BASE-FX, 100Mb/s over fiber optic cables. [100baseFX, 100FX]
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.It Dv IFM_100_T4
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100BASE-T4, 100Mb/s over 4-wire (category 3) unshielded twisted pair, RJ45
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connector. [100baseT4, 100T4]
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.It Dv IFM_100_T2
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100BASE-T2. [100baseT2, 100T2]
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.It Dv IFM_100_VG
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100VG-AnyLAN. [100baseVG, 100VG]
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.It Dv IFM_1000_SX
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1000BASE-SX, 1Gb/s over multi-mode fiber optic cables. [1000baseSX, 1000SX]
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.It Dv IFM_1000_LX
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1000BASE-LX, 1Gb/s over single-mode fiber optic cables. [1000baseLX, 1000LX]
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.It Dv IFM_1000_CX
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1000BASE-CX, 1Gb/s over shielded twisted pair. [1000baseCX, 1000CX]
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.It Dv IFM_1000_T
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1000BASE-T, 1Gb/s over category 5 unshielded twisted pair, RJ45 connector.
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[1000baseT, 1000T]
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.El
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.Pp
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The following media option is defined for Ethernet:
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.Bl -tag -offset indent -width IFM_ETH_MASTER
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.It Dv IFM_ETH_MASTER
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Configure a 1000BASE-T PHY as a MASTER PHY.
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.El
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.Sh MEDIA TYPES AND OPTIONS FOR TOKEN RING
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The following media types are defined for Token Ring:
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.Bl -tag -offset indent -width IFM_TOK_UTP16
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.It Dv IFM_TOK_STP4
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4Mb/s, shielded twisted pair, DB9 connector. [DB9/4Mbit, 4STP]
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.It Dv IFM_TOK_STP16
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16Mb/s, shielded twisted pair, DB9 connector. [DB9/16Mbit, 16STP]
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.It Dv IFM_TOK_UTP4
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4Mb/s, unshielded twisted pair, RJ45 connector. [UTP/4Mbit, 4UTP]
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.It Dv IFM_TOK_UTP16
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16Mb/s, unshielded twisted pair, RJ45 connector. [UTP/16Mbit, 16UTP]
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.El
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.Pp
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The following media options are defined for Token Ring:
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.Bl -tag -offset indent -width IFM_TOK_SRCRT
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.It Dv IFM_TOK_ETR
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Early token release. [EarlyTokenRelease, ETR]
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.It Dv IFM_TOK_SRCRT
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Enable source routing features. [SourceRouting, SRCRT]
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.It Dv IFM_TOK_ALLR
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All routes vs. single route broadcast. [AllRoutes, ALLR]
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.El
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.Sh MEDIA TYPES AND OPTIONS FOR FDDI
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The following media types are defined for FDDI:
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.Bl -tag -offset indent -width IFM_FDDI_SMF -compact
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.It Dv IFM_FDDI_SMF
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Single-mode fiber. [Single-mode, SMF]
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.It Dv IFM_FDDI_MMF
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Multi-mode fiber. [Multi-mode, MMF]
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.It Dv IFM_FDDI_UTP
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Unshielded twisted pair, RJ45 connector. [UTP, CDDI]
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.El
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.Pp
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The following media options are defined for FDDI:
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.Bl -tag -offset indent -width IFM_FDDI_DA
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.It Dv IFM_FDDI_DA
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Dual-attached station vs. Single-attached station. [dual-attach, das]
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.El
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.Sh MEDIA TYPES AND OPTIONS FOR IEEE802.11 WIRELESS LAN
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The following media types are defined for IEEE802.11 Wireless LAN:
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.Bl -tag -offset indent -width IFM_IEEE80211_DS11 -compact
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.It Dv IFM_IEEE80211_FH1
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Frequency Hopping 1Mbps. [FH1]
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.It Dv IFM_IEEE80211_FH2
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Frequency Hopping 2Mbps. [FH2]
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.It Dv IFM_IEEE80211_DS1
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Direct Sequence 1Mbps. [DS1]
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.It Dv IFM_IEEE80211_DS2
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Direct Sequence 2Mbps. [DS2]
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.It Dv IFM_IEEE80211_DS5
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Direct Sequence 5Mbps. [DS5]
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.It Dv IFM_IEEE80211_DS11
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Direct Sequence 11Mbps. [DS11]
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.El
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.Pp
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The following media options are defined for IEEE802.11 Wireless LAN:
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.Bl -tag -offset indent -width IFM_IEEE80211_HOSTAP -compact
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.It Dv IFM_IEEE80211_ADHOC
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Ad-hoc (IBSS) mode. [adhoc, ibss]
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.br
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In some drivers,
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it may be used with the
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.Dv IFM_FLAG0
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[flag0] media option to specify non-standard ad-hoc demo mode.
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.It Dv IFM_IEEE80211_HOSTAP
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Access Point mode [hostap]
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.El
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.Sh SEE ALSO
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.Xr netintro 4 ,
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.Xr ifconfig 8
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.Sh HISTORY
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The
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.Nm
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interface first appeared in
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.Bsx 3.0 .
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The implementation that appeared in
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.Nx 1.3
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was written by Jonathan Stone and Jason R. Thorpe to be compatible with
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the BSDI API. It has since gone through several revisions which have
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extended the API while maintaining backwards compatibility with the
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original API.
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.Pp
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Support for the
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.Sy IEEE802.11 Wireless LAN
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link type was added in
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.Nx 1.5 .
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