51

Home

Privacy modes available from the pull-down menu for the multiple SSIDs are:

WPA-PSK

,

WPA-802.1x

, or

Off-No Privacy

.

These additional Wireless IDs are “Closed System Mode” Wireless IDs (see below) that

will not be shown by a client scan, and therefore must be manually configured at the client.

In addition, wireless bridging between clients is disabled for all members of these addi-

tional network IDs.

Click the

Sa

ve Chang

es

button. The Gateway will prompt you to restart it.

52

Click the

Y

es

button, and the Gateway will restart with your new settings.

☛

NOTES:

The Gateway supports up to 4 different SSIDs:

• One SSID is broadcast by default and has wireless bridging enabled by

default.

• Three additional SSIDs are in “Closed System Mode” and have wireless

bridging disabled.

• These network IDs cannot be configured separately in terms of MAC

Address filtering.

• You can configure privacy on one SSID and disable it on another SSID.

53

Home

WiFi Multimedia

WiFi Multimedia is an advanced feature that allows you to prioritize various types of data

travelling over the wireless network. Certain types of data that are sensitive to delays,

such as voice or video, must be prioritized ahead of other, less delay-sensitive types, such

as email.

WiFi Multimedia currently implements wireless Quality of Service (QoS) by transmitting

data depending on Diffserv priority settings. These priorities are mapped into four Access

Categories (AC), in increasing order of priority:

•

Background (BK),

•

Best Effort (BE),

•

Video (VI), and

•

Voice (VO).

It requires WiFi Multimedia (WMM)-capable clients, usually a separate feature enabled at

the client network settings, and client PC software that makes use of Differentiated Ser-

vices (Diffserv). Refer to your operating system instructions for enabling Diffserv QoS.

When you click the

WiFi Multimedia

button the

WiFi Multimedia

page appears.

To enable the WiFi Multimedia custom settings, select

Diffserv

from the pull-down menu.

54

The screen expands.

Router

EDCA Parameters

(Enhanced Distributed Channel Access) govern wireless data

from your Gateway to the client;

Client EDCA Parameters

govern wireless data from the

client to your Gateway.

☛

NOTE:

It is not recommended that you modify these settings without direct knowl-

edge or instructions to do so. Modifying these settings inappropriately could

seriously degrade network performance.

•

AIFs

: (Arbitration Interframe Spacing) the wait time in milliseconds for data frames.

•

cwMin

: (Minimum Contention Window) upper limit in milliseconds of the range for deter-

mining initial random backoff. The value you choose must be lower than cwMax.

55

Home

•

cwMax

: (Maximum Contention Window) upper limit in milliseconds of the range of

determining final random backoff. The value you choose must be higher than cwMin.

•

TXOP Limit

: Time interval in microseconds that clients may initiate transmissions.

(When

Operating Mode

is

B-only

, default values are used and this field is not config-

urable.)

Click the

Sa

ve Chang

es

button.

Wireless MAC Authorization (optional)

MAC Authorization allows you to specify which client PCs are allowed to join the wireless

LAN by unique hardware (MAC) address. To enable this feature, click the

Limit

Wireless

Access b

y MA

C Ad

dress

button. The MAC Authorization screen appears.

Select

Enab

led

from the pull-down menu.