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NetBSD 6.1.5 - man page for rum (netbsd section 4)

RUM(4)				   BSD Kernel Interfaces Manual 			   RUM(4)

NAME
     rum -- Ralink Technology USB IEEE 802.11a/b/g wireless network device

SYNOPSIS
     rum* at uhub? port ?

DESCRIPTION
     The rum driver supports USB 2.0 wireless adapters based on the Ralink RT2501USB and
     RT2601USB chipsets.

     The RT2501USB chipset is the second generation of 802.11a/b/g adapters from Ralink.  It con-
     sists of two integrated chips, an RT2571W MAC/BBP and an RT2528 or RT5226 radio transceiver.

     The RT2601USB chipset consists of two integrated chips, an RT2671 MAC/BBP and an RT2527 or
     RT5225 radio transceiver.	This chipset uses the MIMO (multiple-input multiple-output) tech-
     nology with multiple antennas to extend the operating range of the adapter and to achieve
     higher throughput.  MIMO is the basis of the forthcoming IEEE 802.11n standard.

     These are the modes the rum driver can operate in:

     BSS mode	    Also known as infrastructure mode, this is used when associating with an
		    access point, through which all traffic passes.  This mode is the default.

     IBSS mode	    Also known as IEEE ad-hoc mode or peer-to-peer mode.  This is the standard-
		    ized method of operating without an access point.  Stations associate with a
		    service set.  However, actual connections between stations are peer-to-peer.

     Host AP	    In this mode the driver acts as an access point (base station) for other
		    cards.

     monitor mode   In this mode the driver is able to receive packets without associating with
		    an access point.  This disables the internal receive filter and enables the
		    card to capture packets from networks which it wouldn't normally have access
		    to, or to scan for access points.

     rum supports software WEP.  Wired Equivalent Privacy (WEP) is the de facto encryption stan-
     dard for wireless networks.  It can be typically configured in one of three modes: no
     encryption; 40-bit encryption; or 104-bit encryption.  Unfortunately, due to serious weak-
     nesses in WEP protocol it is strongly recommended that it not be used as the sole mechanism
     to secure wireless communication.	WEP is not enabled by default.

CONFIGURATION
     The rum driver can be configured at runtime with ifconfig(8) or on boot with ifconfig.if(5)
     using the following parameters:

     bssid bssid
	     Set the desired BSSID.

     -bssid  Unset the desired BSSID.  The interface will automatically select a BSSID in this
	     mode, which is the default.

     chan n  Set the channel (radio frequency) to be used by the driver based on the given chan-
	     nel ID n.

     -chan   Unset the desired channel to be used by the driver.  The driver will automatically
	     select a channel in this mode, which is the default.

     media media
	     The rum driver supports the following media types:

	     autoselect  Enable autoselection of the media type and options.
	     DS1	 Set 802.11b DS 1Mbps operation.
	     DS2	 Set 802.11b DS 2Mbps operation.
	     DS5	 Set 802.11b DS 5.5Mbps operation.
	     DS11	 Set 802.11b DS 11Mbps operation.
	     OFDM6	 Set 802.11a/g OFDM 6Mbps operation.
	     OFDM9	 Set 802.11a/g OFDM 9Mbps operation.
	     OFDM12	 Set 802.11a/g OFDM 12Mbps operation.
	     OFDM18	 Set 802.11a/g OFDM 18Mbps operation.
	     OFDM24	 Set 802.11a/g OFDM 24Mbps operation.
	     OFDM36	 Set 802.11a/g OFDM 36Mbps operation.
	     OFDM48	 Set 802.11a/g OFDM 48Mbps operation.
	     OFDM54	 Set 802.11a/g OFDM 54Mbps operation.

     mediaopt opts
	     The rum driver supports the following media options:

	     hostap   Select Host AP operation.
	     ibss     Select IBSS operation.
	     monitor  Select monitor mode.

     -mediaopt opts
	     Disable the specified media options on the driver and return it to the default mode
	     of operation (BSS).

     mode mode
	     The rum driver supports the following modes:

	     11a  Force 802.11a operation.
	     11b  Force 802.11b operation.
	     11g  Force 802.11g operation.

     nwid id
	     Set the network ID.  The id can either be any text string up to 32 characters in
	     length, or a series of hexadecimal digits up to 64 digits.  An empty id string
	     allows the interface to connect to any available access points.  By default the rum
	     driver uses an empty string.  Note that network ID is synonymous with Extended Ser-
	     vice Set ID (ESSID).

     nwkey key
	     Enable WEP encryption using the specified key.  The key can either be a string, a
	     series of hexadecimal digits (preceded by '0x'), or a set of keys of the form
	     ``n:k1,k2,k3,k4'', where 'n' specifies which of the keys will be used for transmit-
	     ted packets, and the four keys, ``k1'' through ``k4'', are configured as WEP keys.
	     If a set of keys is specified, a comma (',') within the key must be escaped with a
	     backslash.  Note that if multiple keys are used, their order must be the same within
	     the network.  rum is capable of using both 40-bit (5 characters or 10 hexadecimal
	     digits) or 104-bit (13 characters or 26 hexadecimal digits) keys.

     -nwkey  Disable WEP encryption.  This is the default mode of operation.

FILES
     The following firmware file is loaded when an interface is brought up:

	   /libdata/firmware/rum/rum-rt2573
     See firmload(9) for how to change this.

HARDWARE
     The following adapters should work:

	   Airlink101 AWLL5025
	   ASUS WL-167g ver 2
	   Belkin F5D7050 ver 3
	   Belkin F5D9050 ver 3
	   CNet CWD-854 ver F
	   Conceptronic C54RU ver 2
	   D-Link DWL-G122 rev C1
	   D-Link WUA-1340
	   Edimax EW-7318USG
	   Gigabyte GN-WB01GS
	   Hawking HWUG1
	   LevelOne WNC-0301USB
	   Linksys WUSB54G rev C
	   Planex GW-USMM
	   Senao NUB-3701
	   Sitecom WL-113 ver 2
	   Sitecom WL-172
	   TP-LINK TL-WN321G

EXAMPLES
     The following ifconfig.if(5) example configures rum0 to join whatever network is available
     on boot, using WEP key ``0x1deadbeef1'', channel 11:

	   inet 192.168.1.1 netmask 255.255.255.0 nwkey 0x1deadbeef1 chan 11

     The following ifconfig.if(5) example creates a host-based access point on boot:

	   inet 192.168.1.1 netmask 255.255.255.0 media autoselect \
		   mediaopt hostap nwid my_net chan 11

     Configure rum0 for WEP, using hex key ``0x1deadbeef1'':

	   # ifconfig rum0 nwkey 0x1deadbeef1

     Return rum0 to its default settings:

	   # ifconfig rum0 -bssid -chan media autoselect \
		   nwid "" -nwkey

     Join an existing BSS network, ``my_net'':

	   # ifconfig rum0 192.168.1.1 netmask 0xffffff00 nwid my_net

DIAGNOSTICS
     rum%d: failed loadfirmware of file %s  For some reason, the driver was unable to read the
     microcode file from the filesystem.  The file might be missing or corrupted.

     rum%d: could not load 8051 microcode  An error occurred while attempting to upload the
     microcode to the onboard 8051 microcontroller unit.

     rum%d: device timeout  A frame dispatched to the hardware for transmission did not complete
     in time.  The driver will reset the hardware.  This should not happen.

SEE ALSO
     arp(4), ifmedia(4), netintro(4), usb(4), ifconfig.if(5), hostapd(8), ifconfig(8),
     firmload(9)

     Ralink Technology: http://www.ralinktech.com

HISTORY
     The rum driver first appeared in NetBSD 4.0 and OpenBSD 4.0.

AUTHORS
     The rum driver was written by Niall O'Higgins <niallo@openbsd.org> and
     Damien Bergamini <damien@openbsd.org>.

CAVEATS
     The rum driver supports automatic control of the transmit speed in BSS mode only.	Therefore
     the use of a rum adapter in Host AP mode is discouraged.

BSD					 February 7, 2007				      BSD


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