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Topic: List associated wireless clients?

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Post #1
parker
4 Dec 2010, 17:31

I've searched this forum and Google but I can't figure out how to ---> List the wireless clients that are currently associated with my access point (ASUS WL-500G Premium V2). 

As a work around I am using the /var/dhcp.leases file but that is really just showing me the clients that requested an IP lease (wired and wireless).  I need to see the wireless clients associated with the AP.

I found these suggestions in the forum, but I don't think they apply to my router.  I do not have these commands.

For atheros: wlanconfig athX list sta
For mac80211: iw wlan0 station dump

# dmesg | grep -i 802.11
wl0: Broadcom BCM4318 802.11 Wireless Controller 4.150.10.5

Any hints???

Post #2
obsy
4 Dec 2010, 18:53

wl assoclist ?

Post #3
jow
4 Dec 2010, 20:16

Broadcom proprietary: wl assoclist + wl sta_info macaddr
Atheros proprietary: wlaconfig ath0 list sta
mac80211: iw dev wlan0 station dump

Post #4
parker
5 Dec 2010, 02:09

@obsy & @jow - Thanks, I was missing the 'wl' package.

Works great now.  I can even lookup the dhcp client name (if sent by the client)

root@GuestAP:~#  wl sta_info `wl assoclist | awk '{print $2}'` && grep -i `wl assoclist | awk '{print $2}'` /var/dhcp.leases | awk '{print "\t DHCP IP:"$3"  DHCP NAME:"$4}'    
 STA 00:23:6C:99:99:99:
     rateset [ 1 2 5.5 6 9 11 12 18 24 36 48 54 ]
     idle 0 seconds
     in network 32542 seconds
     state: AUTHENTICATED ASSOCIATED
     flags 0x1b: BRCM WME
     DHCP IP:10.10.10.153  DHCP NAME:parkers_macbook
Post #5
parker
5 Dec 2010, 03:08

One step further... A quick bash script to list associated clients.

#! /bin/ash
for x in `wl assoclist | awk '{print $2}'`
do
 echo "------------------------------------------------------"
 wl sta_info $x
 echo -e "\t ---"
 grep $x /proc/net/arp | awk '{print "\t IP: "$1" (from ARP table)"}'
 grep -i $x /var/dhcp.leases | awk '{print "\t IP: "$3" (from DHCP Lease)\n\t NAME: "$4" (from DHCP Lease)"}'
done
 echo "------------------------------------------------------"

Gives me output like this...

root@GuestAP:/usr/sbin# ./check-wifi-assoc.sh 
------------------------------------------------------
 STA 00:14:51:88:88:88:
     rateset [ 1 2 5.5 6 9 11 12 18 24 36 48 54 ]
     idle 1 seconds
     in network 671 seconds
     state: AUTHENTICATED ASSOCIATED
     flags 0x18:
     ---
     IP: 10.10.10.5 (from ARP table)  <---someone connected without DHCP
------------------------------------------------------
 STA 00:23:6C:99:99:99:
     rateset [ 1 2 5.5 6 9 11 12 18 24 36 48 54 ]
     idle 0 seconds
     in network 36177 seconds
     state: AUTHENTICATED ASSOCIATED
     flags 0x1b: BRCM WME
     ---
     IP: 10.10.10.153 (from ARP table)  <---someone connected with DHCP
     IP: 10.10.10.153 (from DHCP Lease) <---so we have DHCP IP
     NAME: parkers_macbook (from DHCP Lease) <---and DHCP Name
------------------------------------------------------

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