Using iwspy linux tools

You use iwspy to get statistics from specific wireless nodes. With iwspy, you
can list the addresses associated with a wireless network interface and get
link-quality information for each. The syntax is as follows:
iwspy interface [+] DNSNAME | IPADDR | HWADDR [...]
iwspy interface off
Let’s look at each one of the parameters.
DNSNAME | IPADDR: Use this parameter to set an IP address or DNS
name (using the name resolver).
HWADDR: Use this parameter to set a hardware (MAC) address.
Plus sign (+): Use this parameter to add a new set of addresses to
the end of the current.
off: Use this parameter to remove the current list of addresses and to
disable the spy functionality.