Cisco RV-120W Router Manual PDF (Setup & Configuration Guide)

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Configuring the Wireless Network

Configuring Basic Wireless Settings

Cisco RV120W Administration Guide

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3

personal authentication is the preshared key (PSK) that is an alphanumeric

passphrase shared with the wireless peer.

•

WPA Enterprise—Allows you to use WPA with RADIUS server

authentication.

•

WPA2 Personal—WPA2 is the implementation of security standard

specified in the final 802.11i standard. It supports AES encryption and this

option uses preshared key (PSK) based authentication.

•

WPA2 Personal Mixed—Allows both WPA and WPA2 clients to connect

simultaneously using PSK authentication.

•

WPA2 Enterprise—Allows you to use WPA2 with RADIUS server

authentication.

•

WPA2 Enterprise Mixed—Allows both WPA and WPA2 clients to connect

simultaneously using RADIUS authentication.

The Encryption Type appears based on the type of network you chose in Step 3:

•

WPA Personal, WPA Enterprise, WPA2 Personal Mixed, WPA2 Enterprise

Mixed—TKIP+AES

•

WPA2 Personal, WPA2 Enterprise—AES

STEP

7

If you chose WEP:

a.

In the Authentication field, choose Open System or Shared Key. If you choose

Open System, a wireless client doesn't need to provide a shared key in order to

access the wireless network. Any client can associate to the router. If you

choose Shared Key, a wireless client must provide the correct shared key

(password) in order to access the wireless network.

b.

Select the Encryption Type (64- or 128-bit WEP). The larger size keys provide

stronger encryption, making the key more difficult to crack (for example, 64-bit

WEP has a 40-bit key which is less secure than the 128-bit WEP, which has a

104-bit key).

c.

(Optional) In the WEP Passphrase field, enter an alphanumeric phrase (longer

than eight characters for optimal security) and click Generate Key to generate

four unique WEP keys in the WEP Key fields below.

d.

Select one of the four keys to use as the shared key that devices must have in

order to use the wireless network. If you did not generate a key in Step 7c,

enter a key directly into the WEP Key field. The length of the key should be 5

ASCII characters (or 10 hexadecimal characters) for 64-bit WEP and 13 ASCII

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Configuring Basic Wireless Settings

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characters (or 26 hexadecimal characters) for 128-bit WEP. Valid hexadecimal

characters are “0” to “9” and “A” to “F”.

If you chose WPA Personal, WPA2 Personal, or WPA2 Personal Mixed:

a.

Enter the WPA Key, or password/phrase that will secure the network. Devices

connecting to the network must use this phrase for authentication.

b.

If you want to see the password as you are entering it, check the Unmask

Password box.

c.

In the Key Renewal field, enter the number of seconds after which the Cisco

RV120W will generate a new key. These keys are internal keys exchanged

between the Cisco RV120W and connected devices. The default value (3600

seconds) is usually adequate unless you are experiencing network problems.

If you chose WPA Enterprise or WPA2 Enterprise Mixed, no further configuration is

required.

If you chose WPA2 Enterprise, you can check the Pre-Authentication box

(optional). Pre-authentication allows wireless clients to quickly switch between

connected wireless networks sharing the same security configuration. When a

wireless client disconnects from a wireless network, a notification is sent to the

network, which then sends the pre-authentication info to other wireless networks.

STEP

8

Click Save.

Configuring MAC Filtering

You can use MAC filtering to permit or deny access to the wireless network based

on the MAC (hardware) address of the requesting device. For example, you can

enter the MAC addresses of a set of PCs and only allow those PCs to access the

network. MAC filtering is configured for each wireless network.

STEP 1

Choose Wireless > Basic Settings.

STEP

2

In the Wireless Basic Settings Table, check the box on the left of the wireless

network you want to configure.

STEP

3

Click Edit MAC Filtering.

STEP

4

Choose Enable.

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Configuring the Wireless Network

Configuring Basic Wireless Settings

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STEP

5

Under Connection Control, choose one of the following:

•

Block following MAC addresses from connecting to wireless network—

Blocks MAC addresses specified below from connecting to the wireless

network.

•

Allow only following MAC addresses to connect to wireless network—

Allows only the MAC addresses specified below to connect to the wireless

network.

STEP

6

Enter the MAC addresses of the endpoints to allow or deny. To see a list of

currently-connected clients, click Wireless Clients List.

STEP

7

Click Save.

Configuring Wi-Fi Multimedia

Wi-Fi Multimedia (WMM) is used to prioritize different types of traffic. You can

configure QoS settings to provide different priority to different applications, users,

or data flows, or to guarantee a certain level of performance to a data flow.

To configure WMM:

STEP 1

Choose Wireless > Basic Settings.

STEP

2

In the Wireless Basic Settings Table, check the box on the left of the wireless

network you want to configure.

STEP

3

Click Edit WMM.

STEP

4

In the SSID field, select SSID that clients use to connect to the AP.

STEP

5

Check the WMM Enable box to enable WMM based on the IEEE 802.11e standard

for this profile. WMM helps in prioritizing wireless traffic according to four access

categories:

•

Voice (highest priority, 4)

•

Video (high priority, 3)

•

Best effort (medium priority, 2)

•

Background (lowest priority, 1)

STEP

6

In the DSCP to Queue table, for each ingress DSCP, you can choose the output

queue for the traffic. The Differentiated Services Code Point (DSCP) field identifies

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Configuring Basic Wireless Settings

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the data packet and the output queue identifies the output queue in which the

packet is transmitted:

•

Voice (4) or Video (3)—High priority queue, minimum delay. Typically used

to send time-sensitive data such as video and other streaming media.

•

Best Effort (2)—Medium priority queue, medium throughput and delay. Most

traditional IP data is sent to this queue.

•

Background (1)—Lowest priority queue, high throughput. Bulk data that

requires maximum throughput and is not time-sensitive is typically sent to

this queue (FTP data, for example).

If you want to change the output queue for packets marked with a particular DSCP,

select the new output queue from the drop-down list.

STEP

7

Click Save.

Configuring Wireless Network (SSID) Scheduling

You can configure each of the four available wireless networks on the Cisco

RV120W to be active during certain times of the day. To configure the schedule for

a wireless network:

STEP 1

Choose Wireless > Basic Settings.

STEP

2

In the Wireless Basic Settings Table, check the box on the left of the wireless

network you want to configure.

STEP

3

Click Edit SSID Scheduling.

STEP

4

Select the wireless network for which you want to create a schedule.

STEP

5

Check the Enable box to allow you to create a schedule to make the network

active during certain times.

STEP

6

Enter the start and stop times for the network to be active.

STEP

7

Click Save.

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Configuring the Wireless Network

Configuring Advanced Wireless Settings

Cisco RV120W Administration Guide

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Configuring Advanced Wireless Settings

To configure advanced wireless settings on the Cisco RV120W:

STEP 1

Choose Wireless > Advanced Settings.

STEP

2

In the Beacon Interval field, enter the time in milliseconds between beacon

transmissions. The default interval is 100 milliseconds.

STEP

3

In the DTIM Interval field, enter the interval at which the delivery traffic indication

message should be sent. A DTIM field is a countdown field informing clients of the

next window for listening to broadcast and multicast messages. When the Cisco

RV120W 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 interval is 2

beacon intervals.

STEP

4

The Request to Send (RTS) Threshold is the packet size, in bytes, that requires the

AP to check the transmitting frames to determine if an RTS/Clear to Send (CTS)

handshake is required with the receiving client. Using a small value causes RTS

packets to be sent more often, consuming more of the available bandwidth,

reducing the apparent throughput of the network packets. The default value is

2346, which effectively disables RTS.

STEP

5

The

Fragmentation Threshold

is the maximum length of the frame, in bytes,

beyond which packets must be fragmented into two or more frames. Collisions

occur more often for long frames because while sending them, they occupy the

channel for a longer time. The default value is 2346, which effectively disables

fragmentation. If you experience a high packet error rate, you can 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.

STEP

6

Choose the Preamble Mode. The 802.11b standard requires that a preamble be

appended to every frame before it is transmitted through the air. The preamble

may be either the traditional “long” preamble, which requires 192

μ

s for

transmission, or it may be an optional “short” preamble that requires only 96

μ

s. A

long preamble is needed for compatibility with the legacy 802.11 systems

operating at 1 and 2 Mbps. The default selection is long.

STEP

7

Choose the Protection Mode. Select none (the default) to turn off CTS. The CTS-

to-Self Protection option enables the CTS-to-Self protection mechanism, which is

used to minimize collisions among stations in a mixed 802.11b and 802.11g

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