ORBIT-USER: wireless interface setup problems

[Shanmuga S Anandaraman]

hi all,

After doing proper configurations,sometimes i find that the packets 
don't get across the nodes through wireless interface.I just try to check 
if ping works and that fails. I have attached the nodes' iwconfig and 
ifconfig to look into if i haven't configured something.Many of the times 
the configuration works, but i am wondering why does it fail at times ?? 
Has any one come across such situation...any suggestions is welcome!!
node10-2:~# iwconfig ath0
ath0      IEEE 802.11a  ESSID:"test"
           Mode:Managed  Frequency:5.18 GHz  Access Point: 
00:60:B3:AC:2B:DE
           Bit Rate=54 Mb/s   Tx-Power:18 dBm   Sensitivity=0/3
           Retry:off   RTS thr:off   Fragment thr:off
           Encryption key:off
           Power Management:off
           Link Quality=41/94  Signal level=-54 dBm  Noise level=-95 dBm
           Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
           Tx excessive retries:0  Invalid misc:0   Missed beacon:0

node10-2:~# ifconfig ath0
ath0      Link encap:Ethernet  HWaddr 00:60:B3:AC:A1:C1
           inet addr:10.30.10.2  Bcast:10.255.255.255  Mask:255.255.0.0
           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
           RX packets:0 errors:0 dropped:0 overruns:0 frame:0
           TX packets:9 errors:0 dropped:0 overruns:0 carrier:0
           collisions:0 txqueuelen:200
           RX bytes:0 (0.0 b)  TX bytes:378 (378.0 b)
           Interrupt:7 Memory:de940000-de950000

node10-2:~# ping 10.30.1.2
PING 10.30.1.2 (10.30.1.2): 56 data bytes


--- 10.30.1.2 ping statistics ---
197 packets transmitted, 0 packets received, 100% packet loss
node10-2:~#



node1-2:~# iwconfig ath0
ath0      IEEE 802.11a  ESSID:"test"
           Mode:Master  Frequency:5.18 GHz  Access Point: 00:60:B3:AC:2B:DE
           Bit Rate=54 Mb/s   Tx-Power:18 dBm   Sensitivity=0/3
           Retry:off   RTS thr:off   Fragment thr:off
           Encryption key:off
           Power Management:off
           Link Quality=48/94  Signal level=-47 dBm  Noise level=-95 dBm
           Rx invalid nwid:28  Rx invalid crypt:0  Rx invalid frag:0
           Tx excessive retries:1  Invalid misc:1   Missed beacon:0

node1-2:~# ifconfig ath0
ath0      Link encap:Ethernet  HWaddr 00:60:B3:AC:2B:DE
           inet addr:10.30.1.2  Bcast:10.255.255.255  Mask:255.255.0.0
           UP BROADCAST MULTICAST  MTU:1500  Metric:1
           RX packets:185 errors:974 dropped:0 overruns:0 frame:974
           TX packets:0 errors:1 dropped:0 overruns:0 carrier:0
           collisions:0 txqueuelen:200
           RX bytes:8800 (8.5 KiB)  TX bytes:0 (0.0 b)
           Interrupt:7 Memory:de940000-de950000

node1-2:~# ping 10.30.10.2
PING 10.30.10.2 (10.30.10.2): 56 data bytes

--- 10.30.10.2 ping statistics ---
12 packets transmitted, 0 packets received, 100% packet loss
node1-2:~#

Thanks
Shanmuga(shyam)