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26 – YML902
5.1
Setup
This screen allows you to configure basic features of the wireless LAN interface.
You can enable or disable
the wireless LAN interface, hide the network from active scans, set the wireless network name (also known as
SSID) and restrict the channel set based on country requirements.
The Wireless Guest Network function adds
extra networking security when connecting to remote hosts.
Option
Description
Enable Wireless
A checkbox that enables (default) or disables the wireless LAN interface.
When selected,
the Web UI displays Hide Access point, SSID, BSSID and Country settings.
Hide Access Point
Select Hide Access Point to protect the access point from detection by wireless active
scans.
To check AP status in Windows XP, open Network Connections from the start Menu
and select View Available Network Connections.
If the access point is hidden, it will not be
listed there.
To connect a client to a hidden access point, the station must add the access
point manually to its wireless configuration.
SSID
[1-32 characters]
Sets the wireless network name.
SSID stands for Service Set Identifier.
All stations must
be configured with the correct SSID to access the WLAN.
If the SSID does not match, that
user will not be granted access.
BSSID
The BSSID is a 48bit identity used to identify a particular BSS (Basic Service Set) within
an area. In Infrastructure BSS networks, the BSSID is the MAC (Media Access Control)
address of the AP (Access Point) and in Independent BSS or ad hoc networks, the BSSID is
generated randomly.
Country
A drop-down menu that permits worldwide and specific national settings.
Each country
listed below enforces specific regulations limiting channel range:
•
USA = worldwide
•
Australia/Japan =
1-14
•
Jordan = 10-13
•
Israel =
1-13
Wireless Guest
Network
The Guest SSID (Virtual Access Point) can be enabled by selecting the Enable Wireless Guest
Network checkbox.
Rename the Wireless Guest Network as you wish.
NOTE: Remote wireless hosts cannot scan Guest SSIDs.
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3G9W - HSPA 7.2Mbps Wi-Fi Router USER GUIDE
YML902 – 27
5.2
Security
This Router includes a number of security options that provides you with a secure connection to a 3G network.
State-of-the art security includes:
•
WEP / WPA / WPA2 data encryption
•
SPI Firewall
•
VPN Pass-Through
•
MAC address IP filtering
•
Authentication protocols – PAP / CHAP
You can authenticate or encrypt your service on the Wired Equivalent Privacy (WEP) algorithm, which provides
protection against unauthorized access such as eavesdropping.
The following screen appears when Security is selected. The Security page allows you to configure security
features of your Router’s wireless LAN interface. You can set the network authentication method, select data
encryption, specify whether a network key is required to authenticate to this wireless network and specify the
encryption strength.
Click
Save/Apply
to configure the wireless security options.
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Page 28 / 86
28 – YML902
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 Router. 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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3G9W - HSPA 7.2Mbps Wi-Fi Router USER GUIDE
YML902 – 29
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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30 – YML902
Option
Description
AP Isolation
Select On or Off.
By enabling this feature, wireless clients associated with the Access
Point can be linked.
Band
The new amendment allows IEEE 802.11g units to fall back to speeds of 11 Mbps, so IEEE
802.11b and IEEE 802.11g devices can coexist in the same network.
The two standards
apply to the 2.4 GHz frequency band.
IEEE 802.11g creates data-rate parity at 2.4 GHz
with the IEEE 802.11a standard, which has a 54 Mbps rate at 5 GHz. (IEEE 802.11a has
other differences compared to IEEE 802.11b or g, such as offering more channels.)
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 Router 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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