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Updated content of wireless.tex, next version will have example configs
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@6612 3c298f89-4303-0410-b956-a3cf2f4a3e73
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@ -1,8 +1,9 @@
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The WiFi settings are configured in the file \texttt{/etc/config/wireless}
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(currently supported on Broadcom and Atheros). When booting the router for the first time
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it should detect your card and create a sample configuration that looks like this:
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it should detect your card and create a sample configuration file. By default '\texttt{option network lan}' is
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commented. This prevents unsecured sharing of the network over the wireless interface.
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\paragraph{Sample Broadcom wireless config:}
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\paragraph{Generic Broadcom wireless config:}
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\begin{Verbatim}
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config wifi-device "wl0"
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@ -11,41 +12,97 @@ config wifi-device "wl0"
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config wifi-iface
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option device "wl0"
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# option network lan
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option mode "ap"
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option ssid "OpenWrt"
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option hidden "0"
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option encryption "none"
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\end{Verbatim}
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\paragraph{Sample Atheros wireless config:}
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\paragraph{Generic Atheros wireless config:}
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\begin{Verbatim}
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config wifi-device "wifi0"
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option type "atheros"
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option channel "5"
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option mode "11g"
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option mode "11g"
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config wifi-iface
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option device "wifi0"
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# option network lan
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option mode "ap"
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option ssid "OpenWrt"
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option hidden "0"
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option encryption "none"
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\end{Verbatim}
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\paragraph{Generic multi-radio Atheros wireless conifg:}
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\begin{Verbatim}
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config wifi-device wifi0
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option type atheros
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option channel 1
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config wifi-iface
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option device wifi0
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# option network lan
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option mode ap
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option ssid OpenWrt_private
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option hidden 0
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option encryption none
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config wifi-device wifi1
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option type atheros
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option channel 11
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config wifi-iface
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option device wifi1
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# option network lan
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option mode ap
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option ssid OpenWrt_public
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option hidden 1
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option encryption none
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\end{Verbatim}
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There are two types of config sections in this file. The '\texttt{wifi-device}' refers to
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the physical wifi interface and '\texttt{wifi-iface}' configures a virtual interface on top
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of that (if supported by the driver).
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A full outline of the wireless configuration file with description of each field:
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\begin{Verbatim}
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config wifi-device wifi device name
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option type broadcom, atheros
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option country us, uk, fr, de, etc.
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option channel 1-14
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option maxassoc 1-128 (broadcom only)
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option distance 1-n
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option mode 11b, 11g, 11a, 11bg (atheros only)
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config wifi-iface
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option network the interface you want wifi to bridge with
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option device wifi0, wifi1, wifi2, wifiN
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option mode ap, sta, adhoc, or wds
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option ssid ssid name
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option bssid bssid address
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option encryption none, wep, psk, psk2, wpa, wpa2
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option key encryption key
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option key1 key 1
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option key2 key 2
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option key3 key 3
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option key4 key 4
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option server ip address
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option port port
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option hidden 0,1
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option isolate 0,1
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\end{Verbatim}
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\paragraph{Options for the \texttt{wifi-device}:}
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\begin{itemize}
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\item \texttt{type} \\
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The driver to use for this interface.
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\item \texttt{mode} \\
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The frequency band (\texttt{b}, \texttt{g}, \texttt{bg}, \texttt{a})
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\item \texttt{country} \\
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The country code used to determine the regulatory settings.
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@ -53,13 +110,27 @@ of that (if supported by the driver).
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The wifi channel (e.g. 1-14, depending on your country setting).
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\item \texttt{maxassoc} \\
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Maximum number of associated clients
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Optional: Maximum number of associated clients. This feature is supported only on the broadcom chipset.
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\item \texttt{distance} \\
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Optional: Distance between the ap and the furthest client in meters. This feature is supported only on the atheros chipset.
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\item \texttt{mode} \\
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The frequency band (\texttt{b}, \texttt{g}, \texttt{bg}, \texttt{a}). This feature is only supported on the atheros chipset.
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\end{itemize}
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\paragraph{Options for the \texttt{wifi-iface}:}
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\begin{itemize}
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\item \texttt{network} \\
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Selects the interface section from \texttt{/etc/config/network} to be
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used with this interface
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\item \texttt{device} \\
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Set the wifi device name.
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\item \texttt{mode} \\
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Operating mode:
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@ -78,35 +149,47 @@ of that (if supported by the driver).
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\end{itemize}
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\item \texttt{network} \\
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Selects the interface section from \texttt{/etc/config/network} to be
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used with this interface
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\item \texttt{ssid}
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Set the SSID to be used on the wifi device.
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\item \texttt{bssid}
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Set the BSSID address to be used for wds to set the mac address of the other wds unit.
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\item \texttt{encryption} \\
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Encryption setting. Accepts the following values:
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\begin{itemize}
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\item \texttt{none}
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\item \texttt{wep}
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\item \texttt{psk}, \texttt{psk2} \\
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WPA(2) Pre-shared Key
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\item \texttt{wpa}, \texttt{wpa2} \\
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WPA(2) RADIUS
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\end{itemize}
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\item \texttt{key} (wpa and psk) \\
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Either the WPA key (PSK mode) or the RADIUS shared secret (WPA RADIUS mode)
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\item \texttt{key, key1, key2, key3, key4} (wep, wpa and psk) \\
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WEP key, WPA key (PSK mode) or the RADIUS shared secret (WPA RADIUS mode)
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\item \texttt{server} (wpa) \\
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The RADIUS server address
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The RADIUS server ip address
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\item \texttt{port} (wpa) \\
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The RADIUS server port
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\item \texttt{hidden} \\
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0 broadcasts the ssid; 1 disables broadcasting of the ssid
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\item \texttt{isolate} \\
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Optional: Isolation is a mode usually set on hotspots that limits the clients to communicate only with the AP and not with other wireless clients.
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0 disables ap isolation (default); 1 enables ap isolation.
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\end{itemize}
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\paragraph{Limitations:}
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There are certain limitations when combining modes.
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Only the following mode combinations are supported:
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\begin{itemize}
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@ -117,7 +200,7 @@ Only the following mode combinations are supported:
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\item 1x \texttt{adhoc}
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\end{itemize}
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WDS links can only be used in pure AP mode and can't use WEP (except when sharing the
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WDS links can only be used in pure AP mode and cannot use WEP (except when sharing the
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settings with the master interface, which is done automatically).
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\item \textbf{Atheros}: \\
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@ -126,7 +209,4 @@ Only the following mode combinations are supported:
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\item 1-4x \texttt{ap}
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\item 1x \texttt{adhoc}
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\end{itemize}
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\end{itemize}
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