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6.4 Configuration

The Configuration screen allows you to configure advanced features of the wireless LAN interface.

You can select a particular channel on

which to operate, force the transmission rate to a particular speed, set the fragmentation threshold, set the RTS threshold, set the wakeup

interval for clients in power-save mode, set the beacon interval for the access point, set XPress mode and set whether short or long

preambles are used.

Click

Apply

to configure the advanced wireless options.

Option

Description

Band

Frequency band used by the wireless AP. Default is 2.4GHz

Channel

Drop-down menu that allows selection of a specific channel.

Auto Channel

Timer (min)

Auto channel scan timer in minutes (0 to disable)

802.11n/EWC

With drop-down menu, “Auto” is for 11n and “Disable” is for 11g

Bandwidth

Drop-down menu specifies the following bandwidth: 20MHz in 2.4G Band and 40 MHz in 5G Band, 20MHz in both bands and 40MHz in both

bands

Control Sideband

This is available for 40MHz. Drop-down menu allows selecting upper sideband or lower sideband

802.11n Rate

Drop-down menu specifies the following fixed rates. The maximum rate for bandwidth, 20MHz, is 130MHz and the maximum bandwidth,

40MHz, is 270MHz

802.11n Protection

It is similar as 802.11g protection. In Auto mode the router will use RTS/CTS to improve 802.11n performance in mixed 802.11n/ 802.11g/

802.11b networks. Turn protection off to maximize 802.11n throughput under most conditions.

Support 802.11n

client only

Drop-down menu allows selecting “On/Off”. Choosing “On” allows the client with 11n only to connect, not for 11g or 11b; choosing “Off”

allows the client with 11n/11g/11b to connect

54g Rate

Drop-down menu that specifies the following fixed rates:

Auto: Default.

Uses the 11 Mbps data rate when possible but drops to lower rates

when necessary.

1 Mbps, 2Mbps, 5.5Mbps, or 11Mbps fixed rates.

The appropriate setting is dependent on signal strength.

Multicast Rate

Setting multicast packet transmit rate.

Basic Rate

Setting basic transmit rate.

Fragmentation

Threshold

A threshold, specified in bytes, that determines whether packets will be fragmented and at what size.

On an 802.11 WLAN, packets that

exceed the fragmentation threshold are fragmented, i.e., split into, smaller units suitable for the circuit size.

Packets smaller than the specified

fragmentation threshold value are not fragmented.

Enter a value between 256 and 2346. If you experience a high packet error rate, try to

slightly increase your Fragmentation Threshold.

The value should remain at its default setting of 2346.

Setting the Fragmentation Threshold

too low may result in poor performance.

RTS Threshold

Request to Send, when set in bytes, specifies the packet size beyond which the WLAN Card invokes its RTS/CTS mechanism.

Packets that

exceed the specified RTS threshold trigger the RTS/CTS mechanism.

The NIC transmits smaller packet without using RTS/CTS.

The default

setting of 2347 (maximum length) disables RTS Threshold.

DTIM Interval

Delivery Traffic Indication Message (DTIM), also known as Beacon Rate.

The entry range is a value between 1 and 65535. A DTIM is a

countdown informing clients of the next window for listening to broadcast and multicast messages.

When the AP has buffered broadcast or

multicast messages for associated clients, it sends the next DTIM with a DTIM Interval value.

AP Clients hear the beacons and awaken to

receive the broadcast and multicast messages.

The default is 1.

Beacon Interval

The amount of time between beacon transmissions.

Each beacon transmission identifies the presence of an access point.

By default, radio

NICs passively scan all RF channels and listen for beacons coming from access points to find a suitable access point.

Before a station enters

power save mode, the station needs the beacon interval to know when to wake up to receive the beacon (and learn whether there are buffered

frames at the access point).

The entered value is represented in ms. Default is 100.

Acceptable entry range is 1 to 0xffff (65535)

Global Max Clients

“Global Max Clients” limits the total associated clients to your SSID.

Xpress TM

Technology

Xpress Technology is compliant with draft specifications of two planned wireless industry standards.

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NetComm Gateway

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Transmit Power

The router will set different power output (by percentage) according to this selection.

WMM (Wi-Fi

Multimedia)

The technology maintains the priority of audio, video and voice applications in a Wi-Fi network. It allows multimedia

service get higher priority.

WMM No

Acknowledgement

Refers to the acknowledge policy used at the MAC level. Enabling no Acknowledgement can result in more efficient

throughput but higher error rates in a noisy Radio Frequency (RF) environment.

WMM APSD

This is Automatic Power Save Delivery.

It saves power.

6.5 MAC Filter

This option allows access to the router to be restricted based upon MAC addresses.

Every network device has a unique 48-bit MAC

address.

This is usually shown as xx.xx.xx.xx.xx.xx, where xx are hexadecimal numbers.

When MAC address filtering is enabled, it

restricts the devices that can connect to your access point.

To add a MAC Address filter, click the

Add

button shown below.

To delete a filter, select it from the table below and click the

Remove

button.

Option

Description

MAC Restrict Mode

Disabled: MAC filtering function is disabled.

Allow: Permits PCs with listed MAC addresses to connect to access point.

Deny: Prevents PCs with listed MAC from connecting to the access point.

MAC Address

Lists the MAC addresses subject to the MAC Restrict Mode.

A maximum of 60 MAC addresses can

be added.

Every network device has a unique 48-bit MAC address.

This is usually shown as xx.xx.

xx.xx.xx.xx, where xx are hexadecimal numbers.

After clicking the

Add

button, the following screen appears.

Enter the MAC address in the box provided and click

Save/Apply

.

ADSL2+ Wireless N300 Modem Router with VoIP User Guide

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6.6 Wireless Bridge

This screen allows you to configure wireless bridge features of the wireless LAN interface. You can select Wireless Bridge (also known

as Wireless Distribution System) to disable access point functionality. Selecting Access Point enables access point functionality. Wireless

bridge functionality will still be available and wireless stations will be able to associate to the AP. Select Disabled in Bridge Restrict, which

disables wireless bridge restriction. Any wireless bridge will be granted access. Select

Enabled

or

Enabled (Scan)

to enable the wireless

bridge restriction. Only those bridges selected in Remote Bridges will be granted access.

6.7 Station Info

This screen shows authenticated wireless stations and their status.

Management

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Management

7.1 Device Settings

The Device Settings option allows you to back up your settings to a file, retrieve the setting file, and restore the settings.

7.1.1

Backup

The Backup option under Management > Device Settings saves your router configurations to a file on your PC.

Click Backup Settings

in the main menu. You will be prompted to define the location of the backup file to save.

After choosing the file location, click Backup

Settings.

The file will then be saved to the assigned location.

7.1.2

Update

This option updates your router settings using a previously saved settings file.

7.1.3

Restore Default

Clicking the Restore Default Configuration option in the Restore Settings screen can restore the original factory installed settings (see

section 3.3 Default Settings).

NOTE 1:

This option has the same effect as the hardware reset-to-default button on the rear panel of the router.

The device board hardware and the boot loader support the

reset to default button.

If the reset button is pressed for more than 10 seconds, the configuration data will be erased.

NOTE 2:

Restoring system settings requires a system reboot.

The current Web UI session must be closed and restarted.

Before restarting it, the IP configuration may need to

be configured with a static IP address.

After the Restore Default Configuration button is selected, the following screen appears. Close the window and wait for 2 minutes

before reopening your web browser. If necessary, reconfigure your PC IP address to match your new configuration.

7.1.4 Update Firmware

The Update firmware screen allows you to update the firmware of the device.

Manual firmware upgrades from a locally stored file can be

performed using the following screen.

Your ISP will provide this file to you, if necessary.