1 .\" Jean II - HPLB - 96
4 .TH IWSPY 8 "31 October 1996" "net-tools" "Linux Programmer's Manual"
9 iwspy \- Get wireless statistics from specific nodes
14 .BI "iwspy " interface
16 .BI "iwspy " interface " [+] " DNSNAME " | " IPADDR " | " HWADDR " [...]"
18 .BI "iwspy " interface " off"
20 .BI "iwspy " interface " setthr " "low high"
22 .BI "iwspy " interface " getthr"
28 is used to set a list of addresses in a wireless network interface and
29 to read back quality of link information for each of those. This
30 information is the same as the one available in
32 : quality of the link, signal strength and noise level.
34 This information is updated each time a new packet is received, so
35 each address of the list add some overhead in the driver.
37 Note the this functionality work only for node part of the current
43 You may set any number of addresses up to 8.
45 .BR DNSNAME " | " IPADDR
46 Set an IP address, or in some cases a DNS name (using the name
47 resolver). As the hardware work with hardware addresses,
49 will translate this IP address through
51 In some case, this address might not be in the ARP cache and
53 will fail. In those case,
55 this name/address and retry.
58 Set a hardware (MAC) address (this address is not translated & checked
59 like the IP one). The address must contain a colon
61 to be recognised as a hardware address.
64 Add the new set of addresses at the end of the current list instead of
65 replacing it. The address list is unique for each device, so each user
66 should use this option to avoid conflicts.
69 Remove the current list of addresses and disable the spy functionality
76 signal strength threshold for the iwspy event (for driver that support
79 Every time the signal strengh for any of the address monitored
80 with iwspy goes lower than the low threshold or goes higher than the
81 high threshold, a Wireless Event will be generated.
83 This can be used to monitor link outages without having to run iwspy
91 signal strength threshold for the iwspy event.