Here is the result of the ifconfig and iwconfig
1- ifconfig with eth0 and wlan0
2-ifdown eth0
3- result of ifconfig and iwconfig
[root@localhost root]# ifconfig
eth0 Link encap:Ethernet HWaddr 00:00:B4:AA:04:FC
inet addr:192.168.247.100 Bcast:192.168.247.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:708 errors:0 dropped:0 overruns:0 frame:0
TX packets:861 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:100
RX bytes:306794 (299.6 Kb) TX bytes:110055 (107.4 Kb)
Interrupt:9 Base address:0x1000
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:235 errors:0 dropped:0 overruns:0 frame:0
TX packets:235 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:21802 (21.2 Kb) TX bytes:21802 (21.2 Kb)
wlan0 Link encap:Ethernet HWaddr 00:0C:41:62:3A:A6
inet addr:192.168.247.101 Bcast:192.168.247.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:114 errors:0 dropped:0 overruns:0 frame:0
TX packets:2 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:100
RX bytes:10468 (10.2 Kb) TX bytes:684 (684.0 b)
Interrupt:10 Memory:ec800000-ec801fff
[root@localhost root]# ifdown eth0
[root@localhost root]# ifconfig
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:235 errors:0 dropped:0 overruns:0 frame:0
TX packets:235 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:21802 (21.2 Kb) TX bytes:21802 (21.2 Kb)
wlan0 Link encap:Ethernet HWaddr 00:0C:41:62:3A:A6
inet addr:192.168.247.101 Bcast:192.168.247.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:125 errors:0 dropped:0 overruns:0 frame:0
TX packets:2 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:100
RX bytes:11256 (10.9 Kb) TX bytes:684 (684.0 b)
Interrupt:10 Memory:ec800000-ec801fff
[root@localhost root]# iwconfig
lo no wireless extensions.
eth0 no wireless extensions.
wlan0 IEEE 802.11g ESSID:"wlnx"
Mode:Managed Frequency:2.437GHz Access Point: 00:0F:66:36:6E:01
Bit Rate:54Mb/s Tx-Power:25 dBm
RTS thr:2347 B Fragment thr:2346 B
Encryption key
ff
Power Management
ff
Link Quality:100/100 Signal level:-36 dBm Noise level:-256 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:115 Missed beacon:0