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RUT240 Wireless

Summary #

The Wireless section of the Network tab can be used to manage and configure WiFi Access Points (AP) and WiFi Stations (STA). This chapter of the user manual is an overview of the Wireless section of RUT2xx routers.

The information in this page is updated in accordance with the RUT2XX_R_00.01.12 firmware version.

Wireless technology #

RUT2xx routers support IEEE 802.11b/g/n and 802.11e_WMM wireless technologies. More information on IEEE 802.11b/g/n can be seen here.

Wireless Configuration #

The Wireless configuration window provides you with the possibility to configure your wireless access points and wireless stations. The Wireless Station Mode will become active only when WiFi is configured as an active WAN interface (either main or backup).

Network wireless configuration.PNG

Above is the overview of the Wireless Configuration window. It displays active access points and stations. Here you can disable or enable your WiFi interfaces, remove unwanted access points or stations or enter a configuration window for each WiFi interface, where you can configure it more thoroughly.

Wireless Access Point #

The Wireless Access Point configuration window is used to make changes to different access points. It is divided into two main sections – device and interface. One is dedicated to configuring hardware parameters, the other – software. To access this window, simply click the edit button next to the WiFi interface that you wish to configure:

Network wireless configuration edit.PNG

Device Configuration #

The Device Configuration section is used for configuring WiFi hardware parameters.

General Setup #

The General Setup tab is used to Enable or Disable an Access Point and to select the wireless channel used by the Access Point.

Choose a WiFi channel according to the busyness of other channels. While RUT devices do not provide a function that lets you monitor the usage of nearby WiFi channels, you can download a free WiFi analyzer app on your phone, laptop or other WiFi device. In most countries there are 13 WiFi channels on the 2.4 GHz band (14 in Japan) to choose from. RUT routers’ WiFi works on the 2.4 GHz band. A wireless 2.4 GHz WiFi channel requires a signaling band roughly 22 MHz wide, radio frequencies of neighboring channels numbers significantly overlap each other. Many home networks utilize routers that by default run on channel 6 on the 2.4 GHz band. Neighboring WiFi home networks that run over the same channel generate radio interference that can cause significant network performance slowdowns for users. Reconfiguring a network to run on a different wireless channel helps minimize these slowdowns. Therefore, pick a channel with no other active Access Points and preferably one that has no active Access Point on two adjacent channels on each side as well. If you don’t feel like doing this, set the Channel field to Auto and the router will pick the least busy channel in your location automatically.

Network wireless device general.PNG

Advanced Setup #

The Advanced Setup tab is used to configure how the wireless Access Point will work from a hardware perspective.

Network wireless device advanced.PNG
Field NameValueDescription
ModeAuto | 802.11b | 802.11g | 802.11g+n; Default: 802.11g+nWireless protocol used. Different modes provide different wireless standard support which directly impacts the radio’s throughput performance
HT mode20 MHz | 40 MHz 2nd channel above; Default: 20 MHzHT (High Throughput) mode allows you to specify channel width. 40 MHz bandwidth provides better performance but it overlaps 4 adjacent channels on each side, therefore, it might overlap with many other Access Points working in those channels. If that is the case, the router will switch back to 20 MHz mode automatically to reduce interference. 40 MHz is only available if the selected channel is not Auto
Country codecountry code; Default: 0 – WorldSO/IEC 3166 alpha2 country codes as defined in ISO 3166-1 standard
Transmit power100 % | 80 % | 60 % | 40 % | 20 %; Default: 100 %WiFi signal power. Use lower power to reduce the router’s CPU usage
Fragmentation thresholdinteger [256..2346]; Default: ” “The smallest packet size that can be fragmented and transmitted by multiple frames. In areas were interference is a problem, setting a lower fragment threshold might help reduce the probability of unsuccessful packet transfers, thus increasing speed
RTS/CTS thresholdinteger [0..2347]; Default: ” “RTS/CTS (Request to Send/Clear to Send) are mechanisms, used to reduce frame collisions introduced by the hidden node problem. It can help resolve problems arising when several access points are in the same area, contending

Interface Configuration #

The Interface Configuration section is used to configure wireless Access Points from the software perspective.

General Setup #

The General Setup tab contains only two options. SSID is the name of your WiFi interface. When other WiFi capable computers or devices scan the area for WiFi networks they will see your network with this name. Hide SSID is used to make your Access Point invisible to other devices. To use a hidden WiFi Access Point, first un-hide it, connect your device to it, then hide it again.

Network wireless interface general.PNG
Network wireless interface security wpa.PNG
Field NameValueDescription
Encryption*No encryption | WPA-PSK | WPA2-PSK | WPA-PSK/WPA2-PSK mixed mode; Default: No encryptionThe type of WiFi encryption used.
CipherAuto | Force CCMP (AES) | Force TKIP | Force TKIP and CCMP (AES); Default: AutoAn algorithm for performing encryption or decryption
Keystring; Default: ” “A custom passphrase used for authentication (at least 8 characters long)
WPA-Enterprise (WPA-EAP, WPA2-EAP) #

The Enterprise variants of WPA and WPA2 use a RADIUS server for authentication purposes instead of a password(s).

Network wireless interface security enterprise wpa.png
Field NameValueDescription
Encryption*No encryption | WPA-PSK | WPA2-PSK | WPA-PSK/WPA2-PSK mixed mode; Default: No encryptionThe type of WiFi encryption used.
CipherAuto | Force CCMP (AES) | Force TKIP | Force TKIP and CCMP (AES); Default: AutoAn algorithm for performing encryption or decryption
Radius Server IPhost | ip; Default: ” “RADIUS server’s IP address or host name
Radius Server Portinteger [0..65535]; Default: ” “The port number used for connection to the RADIUS server
Radius Server Secretstring; Default: ” “A case-sensitive shared secret used for authentication on both RADIUS devices

MAC Filter #

The MAC Filter tab is used for setting up rules that allow or exclude devices with specified MAC addresses from connecting to your WiFi network.

Network wireless interface mac.PNG
Field NameValueDescription
MAC address filterDisable | Allow listed only | Allow all except listed; Default: DisableAllow listed only – only allows devices with MAC addresses specified in the MAC list to connect to your WiFi network
Allow all except listed – blocks devices with MAC addresses specified in the MAC list from connecting to your WiFi network
MACmac; Default: ” “List of MAC addresses to be included or excluded from connecting to your WiFi network
Keystring; Default: ” “A custom passphrase used for authentication (at least 8 characters long)

Advanced Settings #

Network wireless interface advanced.PNG
Field NameValueDescription
Separate clientsyes | no; Default: noPrevents WiFi clients from communicating with each other on the same subnet
Increase TTL packet sizeyes | no; Default: noIncrease TTL packet size for incoming packets

Wireless Station #

RUT240 can also work as a WiFi client. Configuring client mode is nearly identical to AP, except for the fact that most of the options are dictated by the wireless access point that the router is connecting to. Changing them can result in an interrupted connection to that AP.

In addition to standard options you can also click the Scan button to rescan the surrounding area and attempt to connect to a new wireless access point.

Network wireless station step1.PNG

After the scan finishes, you will see a list of these Access points. Choose one according to your liking and press the Join Network button next to it.

Network wireless station step3.PNG

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