Cisco CVR100W Router Manual PDF (Setup & Configuration Guide)

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Configuring Wireless Network

Configuring Advanced Wireless Settings

Cisco CVR100W Wireless-N VPN Router Administration Guide

79

4

Configuring Advanced Wireless Settings

!

CAUTION

Advanced wireless settings should be adjusted only by an expert administrator;

incorrect settings can reduce wireless performance.

To configure advanced wireless settings:

STEP 1

Choose

Wireless

>

Advanced Settings

. The Advanced Settings page appears.

STEP

2

Configure these settings:

Frame Burst

Check Enable to enable this feature to provide your

wireless networks with greater performance,

depending on the manufacturer of your wireless

products. If you are not sure how to use this option,

keep the default (enabled).

WMM No

Acknowledgement

Check

Enable

to enable this feature. Enabling WMM No

Acknowledgement can result in more efficient

throughput, but higher error rates in a noisy Radio

Frequency (RF) environment. Default setting is

disabled.

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Configuring Wireless Network

Configuring Advanced Wireless Settings

Cisco CVR100W Wireless-N VPN Router Administration Guide

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4

Basic Rate

The Basic Rate setting is not the rate of transmission

but a series of rates at which the Services Ready

Platform can transmit.

The CVR100W advertises its basic rate to the other

wireless devices in your network, so they know which

rates will be used.

The Services Ready Platform will also advertise that it

will automatically select the best rate for transmission.

The default setting is Default, when the CVR100W can

transmit at all standard wireless rates (1-2 Mbps, 5.5

Mbps, 11 Mbps, 18 Mbps, 24 Mbps, and so on). In

addition to B and G speeds, the CVR100W supports

N speeds.

Other options are 1-2 Mbps, for use with older wireless

technology, and All, when the CVR100W can transmit

at all wireless rates.

The Basic Rate is not the actual rate of data

transmission. If you want to specify the CVR100W’s

rate of data transmission, configure the Transmission

Rate setting.

Transmission Rate

The rate of data transmission should be set depending

on the speed of your wireless network.

You can select from a range of transmission speeds, or

you can select Auto to have the CVR100W

automatically use the fastest possible data rate and

enable the Auto-Fallback feature.

Auto-Fallback will negotiate the best possible

connection speed between the CVR100W and a

wireless client. The default is Auto.

Page 83 / 150

Configuring Wireless Network

Configuring Advanced Wireless Settings

Cisco CVR100W Wireless-N VPN Router Administration Guide

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N Transmission Rate

The rate of data transmission should be set depending

on the speed of your Wireless-N networking.

You can select from a range of transmission speeds, or

you can select Auto to have the CVR100W

automatically use the fastest possible data rate and

enable the Auto-Fallback feature.

Auto-Fallback will negotiate the best possible

connection speed between the CVR100W and a

wireless client. The default is Auto.

CTS Protection Mode

The CVR100W will automatically use CTS (Clear-To-

Send) Protection Mode when your Wireless-N and

Wireless-G devices are experiencing severe problems

and are not able to transmit to the CVR100W in an

environment with heavy 802.11b traffic.

This function boosts the CVR100W’s ability to catch all

Wireless-N and Wireless-G transmissions but will

severely decrease performance. The default is Auto.

Beacon Interval

The Beacon Interval value indicates the frequency

interval of the beacon. A beacon is a packet broadcast

by the CVR100W to synchronize the wireless network.

Enter a value between 40 and 3500 milliseconds. The

default value is 100.

DTIM Interval

This value, between 1 and 255, indicates the interval of

the Delivery Traffic Indication Message (DTIM). A DTIM

field is a countdown field informing clients of the next

window for listening to broadcast and multicast

messages.

When the CVR100W has buffered broadcast or

multicast messages for associated clients, it sends the

next DTIM with a DTIM Interval value. Its clients hear

the beacons and awaken to receive the broadcast and

multicast messages. The default value is 1.

Page 84 / 150

Configuring Wireless Network

Configuring WDS

Cisco CVR100W Wireless-N VPN Router Administration Guide

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4

STEP

3

Click

Save

.

Configuring WDS

A Wireless Distribution System (WDS) is a system that enables the wireless

interconnection of access points in a network. It allows a wireless network to be

expanded using multiple access points without the need for a wired backbone to

link them.

To establish a WDS link, the CVR100W and other remote WDS peers must be

configured in the same wireless network mode, wireless channel, wireless band

selection, and encryption types (None and WEP).

NOTE

WDS is supported on SSID 1 only.

Fragmentation

Threshold

This value specifies the maximum size for a packet

before data is fragmented into multiple packets. If you

experience a high packet error rate, you may slightly

increase the Fragmentation Threshold.

Setting the Fragmentation Threshold too low may

result in poor network performance. Only minor

reduction of the default value is recommended. In most

cases, it should remain at its default value of 2346.

RTS Threshold

If you encounter inconsistent data flow, enter only

minor reductions. The default value of 2347 is

recommended.

If a network packet is smaller than the preset Request

to Send (RTS) threshold size, the RTS/Clear to Send

(CTS) mechanism will not be enabled. The Services

Ready Platform sends RTS frames to a particular

receiving station and negotiates the sending of a data

frame.

After receiving an RTS, the wireless station responds

with a CTS frame to acknowledge the right to begin

transmission.

Page 85 / 150

Configuring Wireless Network

Configuring WPS

Cisco CVR100W Wireless-N VPN Router Administration Guide

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4

To configure a WDS:

STEP 1

Choose

Wireless

>

WDS

.

STEP

2

Check

Allow wireless signal to be repeated by a repeater

to enable WDS.

STEP

3

To manually enter the MAC address of a repeater, click the

Manual

radio button.

STEP

4

Enter the MAC addresses of up to three access points to use as repeaters in the

MAC 1

,

MAC 2

,

MAC 3

fields.

STEP

5

(Optional) Click the

Show Site Survey

button.

The

Available Networks

table lists the available wireless network access points.

•

(Optional) Click the

Refresh

button to update the entries in the table.

•

In the

Available Networks Table

, select up to three access points to use as

repeaters.

•

To add the MAC addresses of the selected access points to the MAC fields

below the table, click

Connect

.

STEP

6

Click

Save

.

Configuring WPS

You can configure WPS on the CVR100W to allow WPS-enabled devices to more

easily connect to the wireless network.

To enable WPS on your CVR100W:

STEP 1

Choose

Wireless

>

WPS

.

STEP

2

From the

SSID

drop-down menu, choose the wireless network on which the WPS

settings are applied.

STEP

3

In the

WPS

field, check

Enable

to enable WPS. To disable WPS, uncheck the box.

STEP

4

Use one of the following methods to configure WPS on client devices:

•

If your client device has a WPS button, first click the WPS button on the client

device, and then click the

WPS

button on this page.

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