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<table class="head">
<tr>
<td class="head-ltitle">IFMEDIA(4)</td>
<td class="head-vol">Device Drivers Manual</td>
<td class="head-rtitle">IFMEDIA(4)</td>
</tr>
</table>
<div class="manual-text">
<section class="Sh">
<h1 class="Sh" id="NAME"><a class="permalink" href="#NAME">NAME</a></h1>
<p class="Pp"><code class="Nm">ifmedia</code> — <span class="Nd">network
interface media settings</span></p>
</section>
<section class="Sh">
<h1 class="Sh" id="SYNOPSIS"><a class="permalink" href="#SYNOPSIS">SYNOPSIS</a></h1>
<p class="Pp"><code class="In">#include
<<a class="In">sys/socket.h</a>></code>
<br/>
<code class="In">#include <<a class="In">net/if.h</a>></code>
<br/>
<code class="In">#include <<a class="In">net/if_media.h</a>></code></p>
</section>
<section class="Sh">
<h1 class="Sh" id="DESCRIPTION"><a class="permalink" href="#DESCRIPTION">DESCRIPTION</a></h1>
<p class="Pp">The <code class="Nm">ifmedia</code> interface provides a
consistent method for querying and setting network interface media and media
options. The media is typically set using the <a class="Xr">ifconfig(8)</a>
command.</p>
<p class="Pp">The lists below provide the possible names of each link type,
media type, or option. The first name in the list is the canonical name.
Additional names are accepted aliases.</p>
<p class="Pp">There are currently four link types supported by
<code class="Nm">ifmedia</code>:</p>
<p class="Pp"></p>
<div class="Bd-indent">
<dl class="Bl-tag Bl-compact">
<dt id="IFM_ETHER"><a class="permalink" href="#IFM_ETHER"><code class="Dv">IFM_ETHER</code></a></dt>
<dd>Ethernet. [<code class="Cm">Ethernet</code>,
<code class="Cm">ether</code>]</dd>
<dt id="IFM_TOKEN"><a class="permalink" href="#IFM_TOKEN"><code class="Dv">IFM_TOKEN</code></a></dt>
<dd>Token Ring. [<code class="Cm">TokenRing</code>,
<code class="Cm">token</code>]</dd>
<dt id="IFM_FDDI"><a class="permalink" href="#IFM_FDDI"><code class="Dv">IFM_FDDI</code></a></dt>
<dd>FDDI. [<code class="Cm">FDDI</code>]</dd>
<dt id="IFM_IEEE80211"><a class="permalink" href="#IFM_IEEE80211"><code class="Dv">IFM_IEEE80211</code></a></dt>
<dd>IEEE802.11 Wireless LAN. [<code class="Cm">IEEE802.11</code>]</dd>
</dl>
</div>
<p class="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.</p>
<section class="Ss">
<h2 class="Ss" id="Common_Media_Types_and_Options"><a class="permalink" href="#Common_Media_Types_and_Options">Common
Media Types and Options</a></h2>
<p class="Pp">The following <i class="Em">media types</i>
(<code class="Cm">media</code>) are shared by all link types:</p>
<p class="Pp"></p>
<div class="Bd-indent">
<dl class="Bl-tag Bl-compact">
<dt id="IFM_AUTO"><a class="permalink" href="#IFM_AUTO"><code class="Dv">IFM_AUTO</code></a></dt>
<dd>Autoselect the best media. [<code class="Cm">autoselect</code>,
<code class="Cm">auto</code>]</dd>
<dt id="IFM_MANUAL"><a class="permalink" href="#IFM_MANUAL"><code class="Dv">IFM_MANUAL</code></a></dt>
<dd>Jumper or switch on device selects media.
[<code class="Cm">manual</code>]</dd>
<dt id="IFM_NONE"><a class="permalink" href="#IFM_NONE"><code class="Dv">IFM_NONE</code></a></dt>
<dd>Deselect all media. [<code class="Cm">none</code>]</dd>
</dl>
</div>
<p class="Pp">The following <i class="Em">media options</i>
(<code class="Cm">mediaopt</code>) are shared by all link types:</p>
<div class="Bd-indent">
<dl class="Bl-tag">
<dt id="IFM_FDX"><a class="permalink" href="#IFM_FDX"><code class="Dv">IFM_FDX</code></a></dt>
<dd>Place the device into full-duplex mode. This option only has meaning if
the device is normally not full-duplex.
[<code class="Cm">full-duplex</code>, <code class="Cm">fdx</code>]</dd>
<dt id="IFM_HDX"><a class="permalink" href="#IFM_HDX"><code class="Dv">IFM_HDX</code></a></dt>
<dd>Place the device into half-duplex mode. This option only has meaning if
the device is normally not half-duplex.
[<code class="Cm">half-duplex</code>, <code class="Cm">hdx</code>]</dd>
<dt id="IFM_FLOW"><a class="permalink" href="#IFM_FLOW"><code class="Dv">IFM_FLOW</code></a></dt>
<dd>Hardware flow control support. [<code class="Cm">flowcontrol</code>,
<code class="Cm">flow</code>]</dd>
<dt id="IFM_FLAG0"><a class="permalink" href="#IFM_FLAG0"><code class="Dv">IFM_FLAG0</code></a></dt>
<dd>Driver-defined flag. [<code class="Cm">flag0</code>]</dd>
<dt id="IFM_FLAG1"><a class="permalink" href="#IFM_FLAG1"><code class="Dv">IFM_FLAG1</code></a></dt>
<dd>Driver-defined flag. [<code class="Cm">flag1</code>]</dd>
<dt id="IFM_FLAG2"><a class="permalink" href="#IFM_FLAG2"><code class="Dv">IFM_FLAG2</code></a></dt>
<dd>Driver-defined flag. [<code class="Cm">flag2</code>]</dd>
<dt id="IFM_LOOP"><a class="permalink" href="#IFM_LOOP"><code class="Dv">IFM_LOOP</code></a></dt>
<dd>Place the device into hardware loopback mode.
[<code class="Cm">loopback</code>, <code class="Cm">hw-loopback</code>,
<code class="Cm">loop</code>]</dd>
</dl>
</div>
</section>
<section class="Ss">
<h2 class="Ss" id="Media_Types_and_Options_for_Ethernet"><a class="permalink" href="#Media_Types_and_Options_for_Ethernet">Media
Types and Options for Ethernet</a></h2>
<p class="Pp">The following <i class="Em">media types</i> are defined for
Ethernet:</p>
<div class="Bd-indent">
<dl class="Bl-tag">
<dt id="IFM_HPNA_1"><a class="permalink" href="#IFM_HPNA_1"><code class="Dv">IFM_HPNA_1</code></a></dt>
<dd>HomePNA 1.0, 1 Mb/s. [<code class="Cm">HomePNA1</code>,
<code class="Cm">HPNA1</code>]</dd>
<dt id="IFM_10_T"><a class="permalink" href="#IFM_10_T"><code class="Dv">IFM_10_T</code></a></dt>
<dd>10BASE-T, 10 Mb/s over unshielded twisted pair, RJ45 connector.
[<code class="Cm">10baseT</code>, <code class="Cm">UTP</code>,
<code class="Cm">10UTP</code>]</dd>
<dt id="IFM_10_2"><a class="permalink" href="#IFM_10_2"><code class="Dv">IFM_10_2</code></a></dt>
<dd>10BASE2, 10 Mb/s over coaxial cable, BNC connector, also called
Thinnet. [<code class="Cm">10base2</code>, <code class="Cm">BNC</code>,
<code class="Cm">10BNC</code>]</dd>
<dt id="IFM_10_5"><a class="permalink" href="#IFM_10_5"><code class="Dv">IFM_10_5</code></a></dt>
<dd>10BASE5, 10 Mb/s over 15-wire cables, DB15 connector, also called
AUI. [<code class="Cm">10base5</code>, <code class="Cm">AUI</code>,
<code class="Cm">10AUI</code>]</dd>
<dt id="IFM_10_STP"><a class="permalink" href="#IFM_10_STP"><code class="Dv">IFM_10_STP</code></a></dt>
<dd>10BASE-STP, 10 Mb/s over shielded twisted pair, DB9 connector.
[<code class="Cm">10baseSTP</code>, <code class="Cm">STP</code>,
<code class="Cm">10STP</code>]</dd>
<dt id="IFM_10_FL"><a class="permalink" href="#IFM_10_FL"><code class="Dv">IFM_10_FL</code></a></dt>
<dd>10BASE-FL, 10 Mb/s over fiber optic cables.
[<code class="Cm">10baseFL</code>, <code class="Cm">FL</code>,
<code class="Cm">10FL</code>]</dd>
<dt id="IFM_100_TX"><a class="permalink" href="#IFM_100_TX"><code class="Dv">IFM_100_TX</code></a></dt>
<dd>100BASE-TX, 100 Mb/s over unshielded twisted pair, RJ45 connector.
[<code class="Cm">100baseTX</code>, <code class="Cm">100TX</code>]</dd>
<dt id="IFM_100_FX"><a class="permalink" href="#IFM_100_FX"><code class="Dv">IFM_100_FX</code></a></dt>
<dd>100BASE-FX, 100 Mb/s over fiber optic cables.
[<code class="Cm">100baseFX</code>, <code class="Cm">100FX</code>]</dd>
<dt id="IFM_100_T4"><a class="permalink" href="#IFM_100_T4"><code class="Dv">IFM_100_T4</code></a></dt>
<dd>100BASE-T4, 100 Mb/s over 4-wire (category 3) unshielded twisted
pair, RJ45 connector. [<code class="Cm">100baseT4</code>,
<code class="Cm">100T4</code>]</dd>
<dt id="IFM_100_T2"><a class="permalink" href="#IFM_100_T2"><code class="Dv">IFM_100_T2</code></a></dt>
<dd>100BASE-T2. [<code class="Cm">100baseT2</code>,
<code class="Cm">100T2</code>]</dd>
<dt id="IFM_100_VG"><a class="permalink" href="#IFM_100_VG"><code class="Dv">IFM_100_VG</code></a></dt>
<dd>100VG-AnyLAN. [<code class="Cm">100baseVG</code>,
<code class="Cm">100VG</code>]</dd>
<dt id="IFM_1000_SX"><a class="permalink" href="#IFM_1000_SX"><code class="Dv">IFM_1000_SX</code></a></dt>
<dd>1000BASE-SX, 1 Gb/s over multi-mode fiber optic cables. (short
waves) [<code class="Cm">1000baseSX</code>,
<code class="Cm">1000SX</code>]</dd>
<dt id="IFM_1000_LX"><a class="permalink" href="#IFM_1000_LX"><code class="Dv">IFM_1000_LX</code></a></dt>
<dd>1000BASE-LX, 1 Gb/s over single-mode fiber or multi-mode fiber
optic cables. (long waves) [<code class="Cm">1000baseLX</code>,
<code class="Cm">1000LX</code>]</dd>
<dt id="IFM_1000_BX10"><a class="permalink" href="#IFM_1000_BX10"><code class="Dv">IFM_1000_BX10</code></a></dt>
<dd>1000BASE-BX10, 1 Gb/s over bidirectional fiber optic cables. (long
waves) [<code class="Cm">1000BASE-BX10</code>]</dd>
<dt id="IFM_1000_CX"><a class="permalink" href="#IFM_1000_CX"><code class="Dv">IFM_1000_CX</code></a></dt>
<dd>1000BASE-CX, 1 Gb/s over shielded twisted pair. (twinax)
[<code class="Cm">1000baseCX</code>, <code class="Cm">1000CX</code>]</dd>
<dt id="IFM_1000_T"><a class="permalink" href="#IFM_1000_T"><code class="Dv">IFM_1000_T</code></a></dt>
<dd>1000BASE-T, 1 Gb/s over category 5 unshielded twisted pair,
802.3ab, RJ45 connector. [<code class="Cm">1000baseT</code>,
<code class="Cm">1000T</code>]</dd>
<dt id="IFM_1000_KX"><a class="permalink" href="#IFM_1000_KX"><code class="Dv">IFM_1000_KX</code></a></dt>
<dd>1000BASE-KX, 1 Gb/s backplane.
[<code class="Cm">1000BASE-KX</code>,
<code class="Cm">1000baseKX</code>]</dd>
<dt id="IFM_2500_SX"><a class="permalink" href="#IFM_2500_SX"><code class="Dv">IFM_2500_SX</code></a></dt>
<dd>2500BASE-SX, 2.5 Gb/s over multi-mode fiber optic cables.
[<code class="Cm">2500baseSX</code>, <code class="Cm">2500SX</code>]</dd>
<dt id="IFM_2500_T"><a class="permalink" href="#IFM_2500_T"><code class="Dv">IFM_2500_T</code></a></dt>
<dd>2.5GBASE-T, 2.5 Gb/s over category 5e.
[<code class="Cm">2.5GBASE-T</code>,
<code class="Cm">2500baseT</code>]</dd>
<dt id="IFM_2500_KX"><a class="permalink" href="#IFM_2500_KX"><code class="Dv">IFM_2500_KX</code></a></dt>
<dd>2500BASE-KX, 2.5 Gb/s backplane.
[<code class="Cm">2500BASE-KX</code>,
<code class="Cm">2500baseKX</code>]</dd>
<dt id="IFM_5000_T"><a class="permalink" href="#IFM_5000_T"><code class="Dv">IFM_5000_T</code></a></dt>
<dd>5GBASE-T, 5 Gb/s over category 6.
[<code class="Cm">5GBASE-T</code>, <code class="Cm">5GbaseT</code>]</dd>
<dt id="IFM_10G_CX4"><a class="permalink" href="#IFM_10G_CX4"><code class="Dv">IFM_10G_CX4</code></a></dt>
<dd>10GBASE-CX4, 10 Gb/s over XAUI 4-lane PCS and copper cables.
[<code class="Cm">10GbaseCX4</code>, <code class="Cm">10GCX4</code>,
<code class="Cm">10GBASE-CX4</code>]</dd>
<dt id="IFM_10G_LR"><a class="permalink" href="#IFM_10G_LR"><code class="Dv">IFM_10G_LR</code></a></dt>
<dd>10GBASE-LR, 10 Gb/s over single-mode fiber optic cables.
[<code class="Cm">10GbaseLR</code>, <code class="Cm">10GLR</code>]</dd>
<dt id="IFM_10G_LRM"><a class="permalink" href="#IFM_10G_LRM"><code class="Dv">IFM_10G_LRM</code></a></dt>
<dd>10GBASE-LR, 10 Gb/s over single-mode fiber optic cables.
[<code class="Cm">10GbaseLRM</code>]</dd>
<dt id="IFM_10G_SR"><a class="permalink" href="#IFM_10G_SR"><code class="Dv">IFM_10G_SR</code></a></dt>
<dd>10GBASE-SR, 10 Gb/s over multi-mode fiber optic cables.
[<code class="Cm">10GbaseSR</code>, <code class="Cm">10GSR</code>,
<code class="Cm">10GBASE-SR</code>]</dd>
<dt id="IFM_10G_T"><a class="permalink" href="#IFM_10G_T"><code class="Dv">IFM_10G_T</code></a></dt>
<dd>10GBASE-T, 10 Gb/s over unshielded twisted pair, RJ45 connector.
[<code class="Cm">10Gbase-T</code>]</dd>
<dt id="IFM_10G_TWINAX"><a class="permalink" href="#IFM_10G_TWINAX"><code class="Dv">IFM_10G_TWINAX</code></a></dt>
<dd>SFP+ direct attach, 10 Gb/s over twinaxial cable.
[<code class="Cm">10Gbase-Twinax</code>]</dd>
</dl>
</div>
<p class="Pp">The following <i class="Em">media options</i> are defined for
Ethernet:</p>
<div class="Bd-indent">
<dl class="Bl-tag">
<dt id="IFM_ETH_MASTER"><a class="permalink" href="#IFM_ETH_MASTER"><code class="Dv">IFM_ETH_MASTER</code></a></dt>
<dd>Configure a 1000BASE-T PHY as the clock master for a 1000BASE-T link. This
option has no effect (shows current status only) if the media is
<code class="Dv">IFM_AUTO</code>. [<code class="Cm">master</code>]</dd>
<dt id="IFM_ETH_TXPAUSE"><a class="permalink" href="#IFM_ETH_TXPAUSE"><code class="Dv">IFM_ETH_TXPAUSE</code></a></dt>
<dd>Configure the device to send PAUSE (flow control) frames. This option has
no effect (shows current status only) if the media is
<code class="Dv">IFM_AUTO</code>. [<code class="Cm">txpause</code>]</dd>
<dt id="IFM_ETH_RXPAUSE"><a class="permalink" href="#IFM_ETH_RXPAUSE"><code class="Dv">IFM_ETH_RXPAUSE</code></a></dt>
<dd>Configure the device to receive PAUSE (flow control) frames. This option
has no effect (shows current status only) if the media is
<code class="Dv">IFM_AUTO</code>. [<code class="Cm">rxpause</code>]</dd>
</dl>
</div>
</section>
<section class="Ss">
<h2 class="Ss" id="Media_Types_and_Options_for_Token_Ring"><a class="permalink" href="#Media_Types_and_Options_for_Token_Ring">Media
Types and Options for Token Ring</a></h2>
<p class="Pp">The following <i class="Em">media types</i> are defined for Token
Ring:</p>
<div class="Bd-indent">
<dl class="Bl-tag">
<dt id="IFM_TOK_STP4"><a class="permalink" href="#IFM_TOK_STP4"><code class="Dv">IFM_TOK_STP4</code></a></dt>
<dd>4 Mb/s, shielded twisted pair, DB9 connector.
[<code class="Cm">DB9/4Mbit</code>, <code class="Cm">4STP</code>]</dd>
<dt id="IFM_TOK_STP16"><a class="permalink" href="#IFM_TOK_STP16"><code class="Dv">IFM_TOK_STP16</code></a></dt>
<dd>16 Mb/s, shielded twisted pair, DB9 connector.
[<code class="Cm">DB9/16Mbit</code>, <code class="Cm">16STP</code>]</dd>
<dt id="IFM_TOK_UTP4"><a class="permalink" href="#IFM_TOK_UTP4"><code class="Dv">IFM_TOK_UTP4</code></a></dt>
<dd>4 Mb/s, unshielded twisted pair, RJ45 connector.
[<code class="Cm">UTP/4Mbit</code>, <code class="Cm">4UTP</code>]</dd>
<dt id="IFM_TOK_UTP16"><a class="permalink" href="#IFM_TOK_UTP16"><code class="Dv">IFM_TOK_UTP16</code></a></dt>
<dd>16 Mb/s, unshielded twisted pair, RJ45 connector.
[<code class="Cm">UTP/16Mbit</code>, <code class="Cm">16UTP</code>]</dd>
</dl>
</div>
<p class="Pp">The following <i class="Em">media options</i> are defined for
Token Ring:</p>
<div class="Bd-indent">
<dl class="Bl-tag">
<dt id="IFM_TOK_ETR"><a class="permalink" href="#IFM_TOK_ETR"><code class="Dv">IFM_TOK_ETR</code></a></dt>
<dd>Early token release. [<code class="Cm">EarlyTokenRelease</code>,
<code class="Cm">ETR</code>]</dd>
<dt id="IFM_TOK_SRCRT"><a class="permalink" href="#IFM_TOK_SRCRT"><code class="Dv">IFM_TOK_SRCRT</code></a></dt>
<dd>Enable source routing features. [<code class="Cm">SourceRouting</code>,
<code class="Cm">SRCRT</code>]</dd>
<dt id="IFM_TOK_ALLR"><a class="permalink" href="#IFM_TOK_ALLR"><code class="Dv">IFM_TOK_ALLR</code></a></dt>
<dd>All routes vs. single route broadcast. [<code class="Cm">AllRoutes</code>,
<code class="Cm">ALLR</code>]</dd>
</dl>
</div>
</section>
<section class="Ss">
<h2 class="Ss" id="Media_Types_and_Options_for_FDDI"><a class="permalink" href="#Media_Types_and_Options_for_FDDI">Media
Types and Options for FDDI</a></h2>
<p class="Pp">The following <i class="Em">media types</i> are defined for
FDDI:</p>
<div class="Bd-indent">
<dl class="Bl-tag">
<dt id="IFM_FDDI_SMF"><a class="permalink" href="#IFM_FDDI_SMF"><code class="Dv">IFM_FDDI_SMF</code></a></dt>
<dd>Single-mode fiber. [<code class="Cm">Single-mode</code>,
<code class="Cm">SMF</code>]</dd>
<dt id="IFM_FDDI_MMF"><a class="permalink" href="#IFM_FDDI_MMF"><code class="Dv">IFM_FDDI_MMF</code></a></dt>
<dd>Multi-mode fiber. [<code class="Cm">Multi-mode</code>,
<code class="Cm">MMF</code>]</dd>
<dt id="IFM_FDDI_UTP"><a class="permalink" href="#IFM_FDDI_UTP"><code class="Dv">IFM_FDDI_UTP</code></a></dt>
<dd>Unshielded twisted pair, RJ45 connector. [<code class="Cm">UTP,
CDDI</code>]</dd>
</dl>
</div>
<p class="Pp">The following <i class="Em">media options</i> are defined for
FDDI:</p>
<div class="Bd-indent">
<dl class="Bl-tag">
<dt id="IFM_FDDI_DA"><a class="permalink" href="#IFM_FDDI_DA"><code class="Dv">IFM_FDDI_DA</code></a></dt>
<dd>Dual-attached station vs. Single-attached station.
[<code class="Cm">dual-attach</code>, <code class="Cm">das</code>]</dd>
</dl>
</div>
</section>
<section class="Ss">
<h2 class="Ss" id="Media_Types_and_Options_for_IEEE802.11_Wireless_LAN"><a class="permalink" href="#Media_Types_and_Options_for_IEEE802.11_Wireless_LAN">Media
Types and Options for IEEE802.11 Wireless LAN</a></h2>
<p class="Pp">The following <i class="Em">media types</i> are defined for
IEEE802.11 Wireless LAN:</p>
<div class="Bd-indent">
<dl class="Bl-tag">
<dt id="IFM_IEEE80211_FH1"><a class="permalink" href="#IFM_IEEE80211_FH1"><code class="Dv">IFM_IEEE80211_FH1</code></a></dt>
<dd>Frequency Hopping 1 Mbps. [<code class="Cm">FH1</code>]</dd>
<dt id="IFM_IEEE80211_FH2"><a class="permalink" href="#IFM_IEEE80211_FH2"><code class="Dv">IFM_IEEE80211_FH2</code></a></dt>
<dd>Frequency Hopping 2 Mbps. [<code class="Cm">FH2</code>]</dd>
<dt id="IFM_IEEE80211_DS1"><a class="permalink" href="#IFM_IEEE80211_DS1"><code class="Dv">IFM_IEEE80211_DS1</code></a></dt>
<dd>Direct Sequence 1 Mbps. [<code class="Cm">DS1</code>]</dd>
<dt id="IFM_IEEE80211_DS2"><a class="permalink" href="#IFM_IEEE80211_DS2"><code class="Dv">IFM_IEEE80211_DS2</code></a></dt>
<dd>Direct Sequence 2 Mbps. [<code class="Cm">DS2</code>]</dd>
<dt id="IFM_IEEE80211_DS5"><a class="permalink" href="#IFM_IEEE80211_DS5"><code class="Dv">IFM_IEEE80211_DS5</code></a></dt>
<dd>Direct Sequence 5 Mbps. [<code class="Cm">DS5</code>]</dd>
<dt id="IFM_IEEE80211_DS11"><a class="permalink" href="#IFM_IEEE80211_DS11"><code class="Dv">IFM_IEEE80211_DS11</code></a></dt>
<dd>Direct Sequence 11 Mbps. [<code class="Cm">DS11</code>]</dd>
<dt id="IFM_IEEE80211_DS22"><a class="permalink" href="#IFM_IEEE80211_DS22"><code class="Dv">IFM_IEEE80211_DS22</code></a></dt>
<dd>Direct Sequence 22 Mbps. [<code class="Cm">DS22</code>]</dd>
<dt id="IFM_IEEE80211_OFDM6"><a class="permalink" href="#IFM_IEEE80211_OFDM6"><code class="Dv">IFM_IEEE80211_OFDM6</code></a></dt>
<dd>Orthogonal Frequency Division Multiplexing 6 Mbps.
[<code class="Cm">OFDM6</code>]</dd>
<dt id="IFM_IEEE80211_OFDM9"><a class="permalink" href="#IFM_IEEE80211_OFDM9"><code class="Dv">IFM_IEEE80211_OFDM9</code></a></dt>
<dd>Orthogonal Frequency Division Multiplexing 9 Mbps.
[<code class="Cm">OFDM9</code>]</dd>
<dt id="IFM_IEEE80211_OFDM12"><a class="permalink" href="#IFM_IEEE80211_OFDM12"><code class="Dv">IFM_IEEE80211_OFDM12</code></a></dt>
<dd>Orthogonal Frequency Division Multiplexing 12 Mbps.
[<code class="Cm">OFDM12</code>]</dd>
<dt id="IFM_IEEE80211_OFDM18"><a class="permalink" href="#IFM_IEEE80211_OFDM18"><code class="Dv">IFM_IEEE80211_OFDM18</code></a></dt>
<dd>Orthogonal Frequency Division Multiplexing 18 Mbps.
[<code class="Cm">OFDM18</code>]</dd>
<dt id="IFM_IEEE80211_OFDM24"><a class="permalink" href="#IFM_IEEE80211_OFDM24"><code class="Dv">IFM_IEEE80211_OFDM24</code></a></dt>
<dd>Orthogonal Frequency Division Multiplexing 24 Mbps.
[<code class="Cm">OFDM24</code>]</dd>
<dt id="IFM_IEEE80211_OFDM36"><a class="permalink" href="#IFM_IEEE80211_OFDM36"><code class="Dv">IFM_IEEE80211_OFDM36</code></a></dt>
<dd>Orthogonal Frequency Division Multiplexing 36 Mbps.
[<code class="Cm">OFDM36</code>]</dd>
<dt id="IFM_IEEE80211_OFDM48"><a class="permalink" href="#IFM_IEEE80211_OFDM48"><code class="Dv">IFM_IEEE80211_OFDM48</code></a></dt>
<dd>Orthogonal Frequency Division Multiplexing 48 Mbps.
[<code class="Cm">OFDM48</code>]</dd>
<dt id="IFM_IEEE80211_OFDM54"><a class="permalink" href="#IFM_IEEE80211_OFDM54"><code class="Dv">IFM_IEEE80211_OFDM54</code></a></dt>
<dd>Orthogonal Frequency Division Multiplexing 54 Mbps.
[<code class="Cm">OFDM54</code>]</dd>
<dt id="IFM_IEEE80211_OFDM72"><a class="permalink" href="#IFM_IEEE80211_OFDM72"><code class="Dv">IFM_IEEE80211_OFDM72</code></a></dt>
<dd>Orthogonal Frequency Division Multiplexing 72 Mbps.
[<code class="Cm">OFDM72</code>]</dd>
</dl>
</div>
<p class="Pp">The following <i class="Em">media options</i> are defined for
IEEE802.11 Wireless LAN:</p>
<div class="Bd-indent">
<dl class="Bl-tag">
<dt id="IFM_IEEE80211_ADHOC"><a class="permalink" href="#IFM_IEEE80211_ADHOC"><code class="Dv">IFM_IEEE80211_ADHOC</code></a></dt>
<dd>Ad-hoc (IBSS) mode. [<code class="Cm">adhoc</code>,
<code class="Cm">ibss</code>]
<p class="Pp">In some drivers, it may be used with the
<code class="Dv">IFM_FLAG0</code> [<code class="Cm">flag0</code>] media
option to specify non-standard ad-hoc demo mode.</p>
</dd>
<dt id="IFM_IEEE80211_HOSTAP"><a class="permalink" href="#IFM_IEEE80211_HOSTAP"><code class="Dv">IFM_IEEE80211_HOSTAP</code></a></dt>
<dd>Access Point mode. [<code class="Cm">hostap</code>]</dd>
<dt id="IFM_IEEE80211_MONITOR"><a class="permalink" href="#IFM_IEEE80211_MONITOR"><code class="Dv">IFM_IEEE80211_MONITOR</code></a></dt>
<dd>Monitor mode. [<code class="Cm">monitor</code>]</dd>
<dt id="IFM_IEEE80211_TURBO"><a class="permalink" href="#IFM_IEEE80211_TURBO"><code class="Dv">IFM_IEEE80211_TURBO</code></a></dt>
<dd>Turbo mode. [<code class="Cm">turbo</code>]</dd>
</dl>
</div>
</section>
</section>
<section class="Sh">
<h1 class="Sh" id="SEE_ALSO"><a class="permalink" href="#SEE_ALSO">SEE
ALSO</a></h1>
<p class="Pp"><a class="Xr">netintro(4)</a>, <a class="Xr">ifconfig(8)</a></p>
</section>
<section class="Sh">
<h1 class="Sh" id="HISTORY"><a class="permalink" href="#HISTORY">HISTORY</a></h1>
<p class="Pp">The <code class="Nm">ifmedia</code> interface first appeared in
<span class="Ux">BSD/OS 3.0</span>. The implementation that appeared in
<span class="Ux">NetBSD 1.3</span> 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.</p>
<p class="Pp" id="IEEE802.11">Support for the
<a class="permalink" href="#IEEE802.11"><b class="Sy">IEEE802.11 Wireless
LAN</b></a> link type was added in <span class="Ux">NetBSD 1.5</span>.</p>
</section>
</div>
<table class="foot">
<tr>
<td class="foot-date">August 3, 2018</td>
<td class="foot-os">NetBSD 10.1</td>
</tr>
</table>
|
