RADIUS Port

(Relevant only when the

RADIUS server is enabled)

Enter the UDP port number of the RADIUS server. The

default port is 1812.

RADIUS Key

(Relevant only when the

RADIUS server is enabled)

Enter the RADIUS Key.

Group Key Rotation

Interval

(Relevant only when the

RADIUS server is enabled)

When enabled, the Cable Modem/Router generates the

best possible random group key and updates all

key-management capable clients periodically. Set to zero

to disable periodic rekeying.

WPA/WPA2 Re-auth

Interval

Interval (in seconds) at which the Cable Modem/Router (if

using WPA-PSK key management) or RADIUS server (if

using WPA key management) sends a new group key out

to all clients. The re-keying process is the WPA equivalent

of automatically changing the WEP key for an AP and all

stations in a WLAN on a periodic basis.

WEP Encryption

WEP Encryption can be set to WEP 128-bit, 64-bit, or

Disable. Both the wireless clients and the Cable

Modem/Router must use the same WEP key.

Shared Key

Authentication

Select Enable to enable. Shared Key authentication is only

available when WEP is enabled.

802.1x Authentication

(only available when WEP

is enabled)

Select Enable to enable 802.1x authentication. Enable

802.1x Authentication only if you have a RADIUS server.

Most users will leave this as disabled.

Network Key 1-4

You can pre-define up to 4 keys for 64-bit or 128-bit WEP.

64-bit keys require 10 hexadecimal digits and 128-bit key

require 26 hexadecimal digits.

Current Network Key

Select one of the four pre-defined keys as the current

network key.

PassPhase

Enter a word or group of printable characters and click

Generate WEP keys to generate WEP encryption key.

These characters are case sensitive.

Generate WEP Keys

Click to generate 4 WEP keys automatically.

Guest LAN Settings

Select LAN for existing LAN - same as Primary Network -

56

or GUEST to create a Virtual LAN.

IP Address

Enter the IP address to be the default Cable

Modem/Router address for clients connected this guest

network.

Subnet Mask

Enter the subnet mask for this guest network.

Lease Pool Start

Enter the starting IP address of this DHCP address pool.

Lease Pool End

Enter the ending IP address of this DHCP address pool.

Lease Time

Enter the lease time for DHCP clients. DHCP clients will

resend DHCP request before expiration. Maximum value

is 86400 seconds.

UPnP Enable

Select Enabled to enable UPnP on your guest network

Firewall Enable

Enables or Disables the Firewall on your guest network.

DHCPv6 Server

Selecting Enabled allows the DHCP server to assign IPv6

addresses.

Restore Guest Network

Defaults

Click the Restore Guest Network Defaults button to

restore the Guest Network factory settings.

57

Advanced

The Advanced page allows you to configure advanced wireless settings. Most users will

have no need to change these settings.

To access the

Advanced

page:

1

Click the

Wireless

menu tab.

2

Then click the

Advanced

submenu.

Figure 6 shows an example of the menu and Table 6 describes the items you can

select.

Figure 6. Example of Advanced Page

58

Table 6. Advanced Menu Option

Option

Description

54g

TM

Mode

Auto by default.

XPress

TM

Technology

When Xpress is turned on, aggregate throughput can

improve significantly.

802.11n Protection

The 802.11g standards provide a protection method so

802.11g and 802.11b devices can co-exist in the same

network without “speaking” at the same time. Do not disable

802.11n protection if there is a possibility that 802.11b or

802.11g devices will use your wireless network. In

Auto

mode, the wireless devices use RTS/CTS to improve

802.11n performance in mixed 802.11g/802.11b networks.

Turn protection off to maximize 802.11n throughput under

most conditions.

Short Guard Interval

Provides compatibility with certain devices that do not meet

802.11 specifications.

Basic Rate Set

Select the wireless transmission rate to a particular speed

or leave it as default (Auto) to allow the AP adjusts speed

automatically.

Multicast Rate

Specify the rate at which multicast packets are transmitted

and received on your wireless network. Multicast packets

are used to send a single message to a set of recipients in a

defined group. Teleconferencing, videoconferencing and

group email are some examples of multicast applications.

Specifying a high multicast rate may improve performance

of multicast features. The rates are in Mbps. You can select

Automatic

,

1

,

2

,

5.5

,

6

,

9

,

11

,

12

,

18

,

24

,

36

,

48

and

54

.

NPHY Rate

Set the Physical Layer (NPHY) rate. These rates are only

applicable when the

802.11n mode

is configured as

Automatic

.

Legacy Rate

Auto by default.

59

Beacon Interval

A beacon is a packet broadcast by the router to synchronize

the wireless network. The default interval is 100 ms.

DTIM Interval

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 router has buffered broadcast or multicast 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 message. The default

value is 1.

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

Using this setting can regulate your wireless network if you

experience any inconsistent data flow. Make only minor

adjustments to the default value of 2347.

WPS

The WPS page allows you to configure settings for WPS. Most users will have no need

to change these settings.

To access the

WPS

page:

1

Click the

Wireless

menu tab.

2

Then click the

WPS

submenu.

Figure 7

Example WPS page

shows an example of the menu and Table 7 describes the

items you can select.

60