海运的博客

查看连接Openwrt路由的无线客户端：

iwinfo wlan0 assoclist
iw dev wlan0 station dump

查看分配的DHCP客户端IP：

 cat /tmp/dhcp.leases 

扫描无线路由器/AP：

iwinfo wlan0 scan

查看Openwrt路由无线信息：

iwinfo wlan0 info
wlan0     ESSID: "OpenWrt"
          Access Point: 00:1F:A3:65:55:8E
          Mode: Master  Channel: 5 (2.432 GHz)
          Tx-Power: 20 dBm  Link Quality: 30/70
          Signal: -80 dBm  Noise: unknown
          Bit Rate: 32.5 MBit/s
          Encryption: WPA2 PSK (CCMP)
          Type: nl80211  HW Mode(s): 802.11bg
          Hardware: unknown [Generic MAC80211]
          TX power offset: unknown
          Frequency offset: unknown
          Supports VAPs: no  PHY name: phy0

重启无线：

wifi down && sleep 5 && wifi

一个bash脚本，输出当前无线客户端IP/MAC/名称/速率：

#!/bin/bash
echo -e "# IP address\tname\tMAC address\ttx bit\trx bit"
for interface in `iw dev | grep Interface | cut -f 2 -s -d" "`
do
  maclist=(`iw dev $interface station dump | grep Station | cut -f 2 -s -d" "`)
  txlist=(`iw dev wlan0 station dump|grep 'tx bitrate'|awk '{print $3$4}'`)
  rxlist=(`iw dev wlan0 station dump|grep 'rx bitrate'|awk '{print $3$4}'`)
  len=${#maclist[@]}
  for ((i=0;i<$len;i++))
  do
    mac=${maclist[$i]}
    tx=${txlist[$i]}
    rx=${rxlist[$i]}
    ip="UNKN"
    host=""
    ip=`cat /tmp/dhcp.leases | cut -f 2,3,4 -s -d" " | grep $mac | cut -f 2 -s -d" "`
    host=`cat /tmp/dhcp.leases | cut -f 2,3,4 -s -d" " | grep $mac | cut -f 3 -s -d" "`
    echo -e "$ip\t$host\t$mac\t$tx\t$rx"|awk '{printf "%-15s %-25s %-15s %-10s %-10s\n",$1,$2,$3,$4,$5}'
  done
done

http://wiki.openwrt.org/doc/faq/faq.wireless
http://wiki.openwrt.org/doc/howto/wireless.utilities