Wireless configuration in the web interface:
Wireless configuration files:
WiFi Device Configuration¶
The Device Configuration section covers physical settings of the radio hardware such as channel, transmit power or antenna selection which are shared among all defined wireless networks (if the radio hardware is multi-SSID capable).
The available options are highly dependent of the wireless hardware the router has built in and the operating systems device driver.
2.4 GHz Radio¶
|Country Code:||CH - Switzerland|
|Allow legacy 802.11b rates||No|
|Distance Optimization||15 meters|
|Force 40MHz mode|
WiFi Interface Configuration¶
Per network settings like encryption and mode of operation are grouped in the Interface Configuration.
To get highest possible wireless network security, as of August 2018 the following is recommended:
- Use WPA2-PSK as encryption standard. Don’t use WPA or WEP or any mixed mode.
- Use CCMP as cipher. Don’t use TKIP.
- Create your own unique wireless network name (SSID). Don’t use common or often used names, provider names, your own name, etc. The network name will be used as Salt to hash your wireless password.
- Create a long wireless password (max. 63 characters) with diceware.
- 802.11w Management Frame Protection will probably not work with all devices. Try to set it to “Mandatory”. If some clients fail to connect, set it back to “Optional”.
- Enable WPS push button, if your router is in a secure location, without physical access from strangers.
|Cipher||Force CCMP (AES)|
|802.11r Fast Transition||No|
|802.11w Management Frame Protection||Optional|
|802.11w maximum timeout|
|802.11w retry timeout|
|Enable key reinstallation (KRACK) countermeasures||Yes|
|Enable WPS pushbutton, requires WPA(2)-PSK||Yes|
|Disassociate On Low Acknowledgement||Yes|
WNDR3700 & WNDR3800 Wireless Chipsets¶
NETGEAR WNDR3800 routers use Atheros AR9220 (for 5 GHz) and Atheros AR9223 (for 2.4 GHz) wireless chips.
OpenWRT interfaces with these chips using the ath9k Linux wireless driver .
Atheros AR9220/AR9223 Features:
- Supports spatial multiplexing, cyclic-delay diversity (CDD), and maximal ratio combining (MRC)
- BPSK, QPSK, 16 QAM, 64 QAM, DBPSK, DQPSK, and CCK modulation schemes
- Data rates of up to 130 Mbps for 20 MHz channels and 300 Mbps for 40 MHz channels
- Wireless multimedia enhancements quality of service support (QoS)
- 802.11e-compatible bursting
- Support for IEEE 802.11e, h, and i standards
- WEP, TKIP, and AES hardware encryption
- 20 and 40 MHz channelization
- 32-bit 0–33 and 66-MHz PCI 2.3 interface
- Reduced (short) guard interval
- Frame aggregation
- Block ACK
- IEEE 1149.1 standard test access port and boundary scan architecture supported
- 337-pin, 12 mm x 12 mm BGA package
Atheros AR9220 Features:
- Dynamic frequency selection (DFS) is supported in 5-GHz bands
- All-CMOS MIMO solution inter-operable with IEEE 802.11a/b/g/n WLANs
- 2x2 MIMO technology improves effective throughput and range over existing 802.11a/b/g products
- 2.4/5 GHz WLAN MAC/BB processing
Atheros AR9223 Features:
- All-CMOS MIMO solution inter-operable with IEEE 802.11b/g/n WLANs
- 2x2 MIMO technology improves effective throughput and range over existing 802.11b/g products
- 2.4 GHz WLAN MAC/BB processing
ath9k Modes of operation:
- Mesh point
- P2P GO/CLIENT
- Short GI (Both 20 and 40 MHz)
- TX/RX STBC
- WEP 64 / 127
- WPA1 / WPA2
AHB and PCI bus