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Select SSID

Your Service Set Identifier (SSID),sets your Wireless Network Name.You can

connect multiple devices including Laptops,Desktop PCs and PDAs to your

Wireless Gateway.To get additional devices connected,scan for a network,and

locate the SSID shown on your Wireless Security Card.If the SSID does not match,

access is denied.

Network

Authentication

This option is used for authentication to the wireless network.Each authentication

type has its own settings as illustrated below.For example,selecting 802.1X

authentication will reveal the RADIUS Server IP address,Port and Key fields.

WEP Encryption will also be enabled.

The settings for WPA authentication are shown below.

WEP

Encryption

This option indicates whether data sent over the network is encrypted.The same

network key is used for data encryption and network authentication.Whilst four

network keys can be defined,only one can be used at any one time.

Use the network key found in the drop down list.

Encryption

Strength

This drop-down list box will display when WEP Encryption is enabled.

The key strength is proportional to the number of binary bits comprising the key.

This means that keys with a greater number of bits have a greater degree of

security and are considerably more difficult to crack.Encryption strength can

be set to either 64-bit or 128-bit.A 64-bit key is equivalent to 5 ASCII characters

or 10 hexadecimal numbers.A 128-bit key contains 13 ASCII characters or 26

hexadecimal numbers.FYI:Each key contains a 24-bit header (an initiation vector)

which enables parallel decoding of multiple streams of encrypted data.

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5.3

CONFIGURATION

The following screen appears when you select Configuration.This screen allows you to control

the following advanced features of the Wireless Local Area Network (WLAN) interface:

•

Select the channel which you wish to operate from

•

Force the transmission rate to a particular speed

•

Set the fragmentation threshold

•

Set the RTS threshold

•

Set the wake-up interval for clients in power-save mode

•

Set the beacon interval for the access point

•

Set Xpress mode

•

Program short or long preambles

Click Save/Apply to set the advanced wireless configuration.

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Option

Description

AP Isolation

Select On or Off.By enabling this feature,wireless clients associated with the

Access Point can be linked.

Band

Channel

Allows selection of a specific channel (1-14) or Auto mode.

Auto Channel

Timer (min)

The Auto Channel times the length it takes to scan in minutes.

54g Rate

In Auto (default) mode, your Gateway uses the maximum data rate and lowers

the data rate dependent on the signal strength.The appropriate setting is

dependent on signal strength.Other rates are discrete values between 1 to 54

Mbps.

Multicast Rate

Setting for multicast packet transmission rate.(1-54 Mbps)

Basic Rate

Sets basic transmission rate.

Fragmentation

Threshold

A threshold (in bytes) determines whether packets will be fragmented and at

what size.Packets that exceed the fragmentation threshold of an 802.11 WLAN

will be split into smaller units suitable for the circuit size.Packets smaller than

the specified fragmentation threshold value however are not fragmented.

Values between 256 and 2346 can be entered but should remain at a default

setting of 2346.Setting the Fragmentation Threshold too low may result in

poor performance.

RTS Threshold

Request To Send (RTS) specifies the packet size that exceeds the specified

RTS threshold,which then triggers the RTS/CTS mechanism.Smaller packets

are sent without using RTS/CTS.The default setting of 2347 (max length) will

disables the RTS Threshold.

DTIM Interval

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

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

variable that informs 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 in is milliseconds.

The default is 100 ms and the acceptable range is 1 – 65535.The beacon

transmissions identify the presence of an access point.By default,network

devices passively scan all RF channels listening for beacons coming from

access points.Before a station enters power save mode,the station needs the

beacon interval to know when to wake up to receive the beacon.

Xpress™

Technology

Broadcom’s Xpress™ Technology is compliant with draft specifications of two

planned wireless industry standards.It has been designed to improve wireless

network efficiency.Default is disabled.

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Option

Description

54g Mode

Select Auto mode for greatest compatibility.Select Performance mode for the

fastest performance among 54g certified equipment.Select LRS mode if you

are experiencing difficulty with legacy 802.11b equipment.If this does not

work,you may also try 802.11b only mode.

54g Protection

In Auto mode,the gateway will use RTS/CTS to improve 802.11g performance in

mixed 802.11g/802.11b networks.Turning protection Off will maximize 802.11g

throughput under most conditions.

Preamble Type

Short preamble is intended for applications where maximum throughput is

desired but it does not work with legacy equipment.Long preamble works with

the current 1 and 2 Mbit/s DSSS specification as described in IEEE Std 802.11-

1999

Transmit Power

Set the power output (by percentage) as desired.

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5.4

MAC FILTER

This screen appears when Media Access Control (MAC) Filter is selected.This option allows access

to be restricted based upon the unique 48-bit MAC address.

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 – Disables MAC filtering

Allow – Permits access for the specified MAC addresses.

NOTE:

Add a wireless device’s MAC address before clicking the Allow radio button or else you

will need to connect to the Gateway’s web user interface using the supplied yellow

Ethernet cable and add the wireless device’s MAC address.

Deny – Rejects access for the specified MAC addresses

MAC Address

Lists the MAC addresses subject to the MAC Restrict Mode.The Add button

prompts an entry field that requires you type in a MAC address in a two-

character,6-byte convention:xx:xx:xx:xx:xx:xx where xx are hexadecimal

numbers.A maximum of 60 MAC addresses can be added.

Enter the MAC address on the screen below and click Save/Apply.