Christian Lamparter wrote:
> Thanks, I gave the program a try with my WNDA3100 and a WN821N v2 devices.
> I did not see any corruptions in any of the tests though. Can you tell me
> something about your wireless network too? I would like to know what router
> and firmware are you using? Also important: what's your wireless
> configuration?
The router/access-point is a Comcast-issued Technicolor cable modem, model
TC8305C. The only thing I can find on it that looks like it might identify
a firmware version is this:
System Software Version
eMTA & DOCSIS Software Version: 01.E6.01.22.25
Packet Cable: 2.0
I assume Comcast pushes firmware updates whenever they feel like it.
There is possibly another clue. I get this message from the kernel sometimes:
ieee80211 phy0: invalid plcp cck rate (0).
I had this message appearing long before the data corruption bug started.
It never correlated with any actual problems, so I turned down the priority
level of the message to get it off the console, and forgot about it. I
was unable to discover what a "plcp" or "cck" is so the message means
nothing to me.
> (WPA?, CCMP or TKIP? HT40, HT20 or Legacy rates? ...)
>
> Probably the quickest and easiest way to get that information is by running
> the following commands as root, when you are connected to your wifi network
> and post the results:
> # iw dev wlan0 link
> # iw dev wlan0 scan dump
Connected to cc:03:fa:bf:e9:ea (on wlan0)
SSID: HOME-E9EA
freq: 2462
RX: 20726719 bytes (106483 packets)
TX: 5902478 bytes (44707 packets)
signal: -43 dBm
tx bitrate: 54.0 MBit/s
bss flags: short-slot-time
dtim period: 1
beacon int: 100
BSS cc:03:fa:bf:e9:ea(on wlan0) -- associated
TSF: 236407205748 usec (2d, 17:40:07)
freq: 2462
beacon interval: 100 TUs
capability: ESS Privacy ShortSlotTime (0x0411)
signal: -33.00 dBm
last seen: 634452 ms ago
Information elements from Probe Response frame:
SSID: HOME-E9EA
Supported rates: 1.0* 2.0* 5.5* 11.0* 18.0 24.0* 36.0 54.0
DS Parameter set: channel 11
ERP: <no flags>
ERP D4.0: <no flags>
RSN: * Version: 1
* Group cipher: TKIP
* Pairwise ciphers: CCMP TKIP
* Authentication suites: PSK
* Capabilities: 16-PTKSA-RC 1-GTKSA-RC (0x000c)
Extended supported rates: 6.0* 9.0 12.0* 48.0
HT capabilities:
Capabilities: 0x18bd
RX LDPC
HT20
SM Power Save disabled
RX Greenfield
RX HT20 SGI
TX STBC
No RX STBC
Max AMSDU length: 7935 bytes
DSSS/CCK HT40
Maximum RX AMPDU length 65535 bytes (exponent: 0x003)
Minimum RX AMPDU time spacing: 8 usec (0x06)
HT RX MCS rate indexes supported: 0-23
HT TX MCS rate indexes are undefined
HT operation:
* primary channel: 11
* secondary channel offset: no secondary
* STA channel width: 20 MHz
* RIFS: 1
* HT protection: nonmember
* non-GF present: 1
* OBSS non-GF present: 1
* dual beacon: 0
* dual CTS protection: 0
* STBC beacon: 0
* L-SIG TXOP Prot: 0
* PCO active: 0
* PCO phase: 0
WPS: * Version: 1.0
* Wi-Fi Protected Setup State: 2 (Configured)
* Response Type: 3 (AP)
* UUID: 6d1b1911-14a9-391c-cdee-89850a5aa1ef
* Manufacturer: Technicolor
* Model: Technicolor
* Model Number: 123456
* Serial Number: 0000001
* Primary Device Type: 6-0050f204-1
* Device name: TechnicolorAP
* Config methods: Display
* RF Bands: 0x1
* Unknown TLV (0x1049, 6 bytes): 00 37 2a 00 01 20
WPA: * Version: 1
* Group cipher: TKIP
* Pairwise ciphers: CCMP TKIP
* Authentication suites: PSK
* Capabilities: 16-PTKSA-RC 1-GTKSA-RC (0x000c)
WMM: * Parameter version 1
* u-APSD
* BE: CW 15-1023, AIFSN 3
* BK: CW 15-1023, AIFSN 7
* VI: CW 7-15, AIFSN 2, TXOP 3008 usec
* VO: CW 3-7, AIFSN 2, TXOP 1504 usec
--
Alan Curry
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