iwspy man page on Peanut

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IWSPY(8)		   Linux Programmer's Manual		      IWSPY(8)

NAME
       iwspy - Get wireless statistics from specific nodes

SYNOPSIS
       iwspy [interface]
       iwspy interface [+] DNSNAME | IPADDR | HWADDR [...]
       iwspy interface off
       iwspy interface setthr low high
       iwspy interface getthr

DESCRIPTION
       Iwspy  is used to set a list of addresses to monitor in a wireless net‐
       work interface and to read back quality of link information for each of
       those.	This   information  is	the  same  as  the  one	 available  in
       /proc/net/wireless : quality of the link,  signal  strength  and	 noise
       level.

       This information is updated each time a new packet is received, so each
       address of the list adds some overhead in the driver.

       Note that this functionality works only for nodes part of  the  current
       wireless cell, you can not monitor Access Points you are not associated
       with (you can use Scanning for that) and nodes in other cells. In  Man‐
       aged  mode,  in	most  case packets are relayed by the Access Point, in
       this case you will get the signal strength of  the  Access  Point.  For
       those  reasons this functionality is mostly useful in Ad-Hoc and Master
       mode.

PARAMETERS
       You may set any number of addresses up to 8.

       DNSNAME | IPADDR
	      Set an IP address, or in some cases a DNS name (using  the  name
	      resolver).  As the hardware works with hardware addresses, iwspy
	      will translate this IP address through ARP.  In some case,  this
	      address  might  not  be in the ARP cache and iwspy will fail. In
	      those case, ping(8) this name/address and retry.

       HWADDR Set a hardware (MAC) address (this address is not	 translated  &
	      checked  like  the IP one). The address must contain a colon (:)
	      to be recognised as a hardware address.

       +      Add the new set of addresses at the  end	of  the	 current  list
	      instead  of  replacing  it.  The address list is unique for each
	      device, so each user should use this option to avoid conflicts.

       off    Remove the current list of addresses and disable the  spy	 func‐
	      tionality

       setthr Set  the	low  and  high signal strength threshold for the iwspy
	      event (for drivers that support it).
	      Every time the signal strength for any of the address  monitored
	      with iwspy goes lower than the low threshold or goes higher than
	      the high threshold, a Wireless Event will be generated.
	      This can be used to monitor link outages without having  to  run
	      iwspy periodically.

       getthr Retrieve	the current low and high signal strength threshold for
	      the iwspy event.

FILES
       /proc/net/wireless

SEE ALSO
       iwconfig(8), iwlist(8), iwevent(8), iwpriv(8), wireless(7).

net-tools			31 October 1996			      IWSPY(8)
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