.\" $OpenBSD: ifmedia.4,v 1.17 2008/06/26 05:42:06 ray Exp $ .\" $NetBSD: ifmedia.4,v 1.14 2001/06/30 17:57:56 bjh21 Exp $ .\" .\" Copyright (c) 1998 The NetBSD Foundation, Inc. .\" All rights reserved. .\" .\" This code is derived from software contributed to The NetBSD Foundation .\" by Jason R. Thorpe of the Numerical Aerospace Simulation Facility, .\" NASA Ames Research Center. .\" .\" 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. .\" .\" THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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. .\" .Dd $Mdocdate: June 26 2008 $ .Dt IFMEDIA 4 .Os .Sh NAME .Nm ifmedia .Nd network interface media settings .Sh SYNOPSIS .Fd #include .Fd #include .Fd #include .Sh DESCRIPTION The .Nm interface provides a consistent method for querying and setting network interface media and media options. The media is typically set using the .Xr ifconfig 8 command. .Pp There are currently three link types supported by .Nm ifmedia : .Pp .Bl -tag -offset indent -width IFM_IEEE80211 -compact .It Dv IFM_ETHER Ethernet .It Dv IFM_FDDI FDDI .It Dv IFM_IEEE80211 IEEE802.11 Wireless LAN .El .Pp The following sections describe the possible media settings for each link type. Not all of these are supported by every device; refer to your device's manual page for more information. .Pp The lists below provide the possible names of each media type or option. The first name in the list is the canonical name of the media type or option. Additional names are acceptable aliases for the media type or option. .Sh COMMON MEDIA TYPES AND OPTIONS The following media types are shared by all link types: .Pp .Bl -tag -offset indent -width IFM_MANUAL -compact .It Dv IFM_AUTO Autoselect the best media. [autoselect, auto] .It Dv IFM_MANUAL Jumper or switch on device selects media. [manual] .It Dv IFM_NONE Deselect all media. [none] .El .Pp The following media options are shared by all link types: .Bl -tag -offset indent -width IFM_FLAG0 .It Dv IFM_FDX Place the device into full-duplex mode. This option only has meaning if the device is normally not full-duplex. .It Dv IFM_HDX Place the device into half-duplex mode. This option only has meaning if the device is normally not half-duplex. [half-duplex, hdx] .It Dv IFM_FLAG0 Driver-defined flag. [flag0] .It Dv IFM_FLAG1 Driver-defined flag. [flag1] .It Dv IFM_FLAG2 Driver-defined flag. [flag2] .It Dv IFM_LOOP Place the device into hardware loopback mode. [loopback, hw-loopback, loop] .El .Sh MEDIA TYPES AND OPTIONS FOR ETHERNET The following media types are defined for Ethernet: .Bl -tag -offset indent -width IFM_1000_FX .It Dv IFM_10_T 10BASE-T, 10Mb/s over unshielded twisted pair, RJ45 connector. [10baseT, UTP, 10UTP] .It Dv IFM_10_2 10BASE2, 10Mb/s over coaxial cable, BNC connector; also called Thinnet. [10base2, BNC, 10BNC] .It Dv IFM_10_5 10BASE5, 10Mb/s over 15-wire cables, DB15 connector; also called AUI. [10base5, AUI, 10AUI] .It Dv IFM_10_STP 10BASE-STP, 10Mb/s over shielded twisted pair, DB9 connector. [10baseSTP, STP, 10STP] .It Dv IFM_10_FL 10BASE-FL, 10Mb/s over fiber optic cables. [10baseFL, FL, 10FL] .It Dv IFM_100_TX 100BASE-TX, 100Mb/s over unshielded twisted pair, RJ45 connector. [100baseTX, 100TX] .It Dv IFM_100_FX 100BASE-FX, 100Mb/s over fiber optic cables. [100baseFX, 100FX] .It Dv IFM_100_T4 100BASE-T4, 100Mb/s over 4-wire (category 3) unshielded twisted pair, RJ45 connector. [100baseT4, 100T4] .It Dv IFM_100_T2 100BASE-T2. [100baseT2, 100T2] .It Dv IFM_100_VG 100VG-AnyLAN. [100baseVG, 100VG] .It Dv IFM_1000_SX 1000BASE-SX, 1Gb/s over multi-mode fiber optic cables. [1000baseSX, 1000SX] .It Dv IFM_1000_LX 1000BASE-LX, 1Gb/s over single-mode fiber optic cables. [1000baseLX, 1000LX] .It Dv IFM_1000_CX 1000BASE-CX, 1Gb/s over shielded twisted pair. [1000baseCX, 1000CX] .It Dv IFM_1000_T 1000BASE-T, 1Gb/s over category 5 unshielded twisted pair, RJ45 connector. [1000baseT, 1000T] .El .Pp The following media option is defined for Ethernet: .Bl -tag -offset indent -width IFM_ETH_MASTER .It Dv IFM_ETH_MASTER Configure a 1000BASE-T PHY as a MASTER PHY. .El .Sh MEDIA TYPES AND OPTIONS FOR FDDI The following media types are defined for FDDI: .Pp .Bl -tag -offset indent -width IFM_FDDI_SMF -compact .It Dv IFM_FDDI_SMF Single-mode fiber. [Single-mode, SMF] .It Dv IFM_FDDI_MMF Multi-mode fiber. [Multi-mode, MMF] .It Dv IFM_FDDI_UTP Unshielded twisted pair, RJ45 connector. [UTP, CDDI] .El .Pp The following media options are defined for FDDI: .Bl -tag -offset indent -width IFM_FDDI_DA .It Dv IFM_FDDI_DA Dual-attached station vs. Single-attached station. [dual-attach, das] .El .Sh MEDIA TYPES AND OPTIONS FOR IEEE802.11 WIRELESS LAN The following media types are defined for IEEE802.11 Wireless LAN: .Pp .Bl -tag -offset indent -width IFM_IEEE80211_OFDM22 -compact .It Dv IFM_IEEE80211_FH1 Frequency Hopping 1Mbps. [FH1] .It Dv IFM_IEEE80211_FH2 Frequency Hopping 2Mbps. [FH2] .It Dv IFM_IEEE80211_DS1 Direct Sequence 1Mbps. [DS1] .It Dv IFM_IEEE80211_DS2 Direct Sequence 2Mbps. [DS2] .It Dv IFM_IEEE80211_DS5 Direct Sequence 5.5Mbps. [DS5] .It Dv IFM_IEEE80211_DS11 Direct Sequence 11Mbps. [DS11] .It Dv IFM_IEEE80211_DS22 Direct Sequence 22Mbps. [DS22] .It Dv IFM_IEEE80211_OFDM6 Orthogonal Frequency Division Multiplexing (OFDM) 6Mbps. [OFDM6] .It Dv IFM_IEEE80211_OFDM9 OFDM 9Mbps. [OFDM9] .It Dv IFM_IEEE80211_OFDM12 OFDM 12Mbps. [OFDM12] .It Dv IFM_IEEE80211_OFDM18 OFDM 18Mbps. [OFDM18] .It Dv IFM_IEEE80211_OFDM24 OFDM 24Mbps. [OFDM24] .It Dv IFM_IEEE80211_OFDM36 OFDM 36Mbps. [OFDM36] .It Dv IFM_IEEE80211_OFDM48 OFDM 48Mbps. [OFDM48] .It Dv IFM_IEEE80211_OFDM54 OFDM 54Mbps. [OFDM54] .It Dv IFM_IEEE80211_OFDM72 OFDM 72Mbps. [OFDM72] .El .Pp The following media options are defined for IEEE802.11 Wireless LAN: .Pp .Bl -tag -offset indent -width IFM_IEEE80211_IBSSMASTER -compact .It Dv IFM_IEEE80211_ADHOC Ad-hoc mode. [adhoc] .It Dv IFM_IEEE80211_HOSTAP Host Access Point mode. [hostap] .It Dv IFM_IEEE80211_IBSS IBSS mode. [ibss] .It Dv IFM_IEEE80211_IBSSMASTER IBSS master mode. [ibssmaster] .It Dv IFM_IEEE80211_MONITOR Monitor mode. [monitor] .It Dv IFM_IEEE80211_TURBO Turbo mode. [turbo] .El .Pp The channels detailed below are defined for IEEE802.11 Wireless LAN. The list of available frequencies is dependent on radio regulations specified by regional authorities. Recognized regulatory authorities include the FCC (United States), ETSI (Europe), France, and Japan. Frequencies in the table are specified in MHz. .Pp .Bd -ragged -offset indent .Bl -column "Channel " "FCC" "ETSI" "France" "Japan" .Em "Channel FCC ETSI France Japan" 1 2412 2412 - 2412 2 2417 2417 - 2417 3 2422 2422 - 2422 4 2427 2427 - 2427 5 2432 2432 - 2432 6 2437 2437 - 2437 7 2442 2442 - 2442 8 2447 2447 - 2447 9 2452 2452 - 2452 10 2457 2457 2457 2457 11 2462 2462 2462 2462 12 - 2467 2467 2467 13 - 2472 2472 2472 14 - - - 2484 .El .Ed .Pp Note that the channels do overlap; the bandwidth required for each channel is about 20MHz. When using multiple channels in close proximity it is suggested that channels be separated by at least 25MHz. In the US, this means that only channels 1, 6, and 11 may be used simultaneously without interference. .Sh SEE ALSO .Xr netintro 4 , .Xr ifconfig 8 .Sh HISTORY The .Nm interface first appeared in .Bsx 3.0 . The implementation that appeared in .Nx 1.3 was written by Jonathan Stone and Jason R. Thorpe to be compatible with the BSDI API. It has since gone through several revisions which have extended the API while maintaining backwards compatibility with the original API. .Pp Support for the .Sy IEEE802.11 Wireless LAN link type was added in .Nx 1.5 . .Pp .Sy Host AP mode was added in .Ox 3.1 .