critical WPA2 vulnerabilities afoot, see KRACK attacks (discussion @ /r/KRaCK, HN, /r/netsec, Slashdot)

Atheros WiFi Support

From WikiDevi
Jump to: navigation, search

802.11n[edit]

Chipset Chips
used
Adapters MIMO
config
HT20 SGI
HT20
HT40 SGI
HT40
WoW Spectral
scan
STBC
Rx/Tx
AR9280 19 devices 2x2:2 yes no yes yes yes
(up 2.rev?)
yes, 8bit 1/1
AR9285 31 devices 1x1:1 yes no yes yes yes yes, 8bit 1/0
AR9287 13 devices 2x2:2 yes yes yes yes yes yes, 8bit 1/1
AR9271 45 devices 1x1:1 yes yes yes yes no no 1/0
AR9462 17 devices 2x2:2 yes yes yes yes yes yes, 8bit 1/1

Fields[edit]

Spectral scan made with Atheros AR9285

Following fields are used or may be of interest:

- HT20 - 20 MHz mode.
- SGI HT20 - Short guard interval for 20 MHz mode. Not all chips support it.
- HT40 and SGI HT40 - 40 MHz mode...
- WoW - Wake on Wireless - If it is supported by the chip it does not mean it was enabled by the vendor.
- Spectral scan - allow using this chip for spectral scanning, not enough for "sintifik" work, but good for troubleshooting.
- STBC Rx/Tx - Space-Time Block Coding is used to reduce data loss. Rx - means it can receive an STBC stream.
Tx - it can send an STBC stream. Number (Nss) is used to show the number of parallel data streams which can be sent or received with STBC.