iwconfig: Invalid misc

David Everly deckrider at yahoo.com
Mon Mar 15 13:01:37 EST 2004


--- Joe Parks <jphstap at roinet.com> wrote:
> In my case "invalid misc" was a truncated, WEP encrypted packet and
> when
> I saw them data loss became bad.   I was able to trigger them by
> FTPing
> files back and forth but small packets like pings didn't trigger
> them.
> 
> So you should check to see if you can trigger them the same way.  If
> you
> can you should report your findings to the mailing list.
> 

It is hard to say, but it doesn't seem that ping makes it better or
worse.

Also, here is more data (it seems from below that RxFCSErrors=7793 +
RxDiscardsNoBuffer=11 = Invalid misc:7804):

deverly at elbert:/proc/net/hostap/wlan0$ cat stats ; sudo iwconfig wlan0
TxUnicastFrames=13955
TxMulticastframes=0
TxFragments=13979
TxUnicastOctets=2042645
TxMulticastOctets=0
TxDeferredTransmissions=3881
TxSingleRetryFrames=269
TxMultipleRetryFrames=89
TxRetryLimitExceeded=7
TxDiscards=0
RxUnicastFrames=12764
RxMulticastFrames=129635
RxFragments=142399
RxUnicastOctets=8841219
RxMulticastOctets=7389753
RxFCSErrors=7793
RxDiscardsNoBuffer=11
TxDiscardsWrongSA=0
RxDiscardsWEPUndecryptable=5
RxMessageInMsgFragments=0
RxMessageInBadMsgFragments=0
wlan0     IEEE 802.11b  ESSID:"Syndere11a"
          Mode:Managed  Frequency:2.437GHz  Access Point:
00:06:25:5D:A7:47
          Bit Rate:11Mb/s   Sensitivity=1/3
          Retry min limit:8   RTS thr:off   Fragment thr:off
          Encryption key:597C-5C91-66B8-BF68-2205-96E9-CF   Security
mode:restricted
          Power Management:off
          Link Quality:48/70  Signal level:-52 dBm  Noise level:-100
dBm
          Rx invalid nwid:0  Rx invalid crypt:5  Rx invalid frag:0
          Tx excessive retries:7  Invalid misc:7804   Missed beacon:0



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