Linksys WAP55AG Users Manual

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Chapter 6: Configuring the Dual­Band Wireless A + G Access Point
The Access Point’s settings can be configured through your web browser with the Web-Based Utility. This chapter explains how to configure the Access Point in this manner.
Type the Access Point’s IP Address into your web browser’s address field. (The default IP address is
192.168.1.246.) (Should you need to learn what IP Address the Access Point presently uses, run the Setup Wizard. It will scan the Access Point and give you its IP Address.) Press the Enter key and the following screen, shown in Figure 6-1, will appear. Leave the User Name field blank. The first time you open the Web-Based Utility, use the default password admin. You can set a new pass­word from the Password tab.
The first screen that appears, shown in Figure 6-2, displays the Setup tab. This allows you to change the Access Point’s general settings. These settings are described here. Click the Apply button to apply your changes or Cancel to can­cel your changes. If you require online help, click the Help button.
Access Point Name. You may assign any name to the Access Point, which is how the Access Point is identified on your network. Unique, memorable names are helpful, especially if you are employing multiple access points on the same network. Verify this is the name you wish to use and click the Apply button to set it.
Figure 6-1
The Setup Tab
Note: The Access Point is designed to function properly after using the Setup Wizard. This chapter is provided solely for those who wish to perform more advanced configuration or monitoring.
Dual-Band Wireless A + G Access Point
MAC Address. The MAC Address of the LAN interface - connected through the LAN Port - is displayed here.
Configuration Type. This selection tells the Access Point how IP Addresses are determined on your network. If you are using a DHCP server on your net­work to automatically generate different IP Addresses to each device, select Automatic Configuration - DHCP. Select Static IP Address if each device uses its own IP Address. The Access Point’s default IP Address, Subnet Mask, and Default Gateway will appear in the appropriate fields.
Fields for configuring your wireless connections, both 802.11a and 802.11g­draft are located under this information. You must configure any wireless stan­dard you are using on your network.
MAC Address. The first line of data provided about both wireless standards is the MAC Address of the wireless interface.
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Figure 6-2
Dual-Band Wireless A + G Access Point
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From the pull-down menu, select the type of WEP encryption you wish to use.
If you are using 802.11a wireless technology, you will need to enter the key manually.
If you are using 802.11g-draft wireless technology and wish to use a WEP Passphrase, it can be a maximum of 16 alphanumeric characters. This passphrase may not work with non-Linksys products due to possible incom­patibility with other vendors’ passphrase generators. The WEP Key can be gen­erated using your Passphrase or you can enter it manually. Type that here.
Figure 6-3
SSID. The SSID is the unique name shared among all points in a wireless net­work. The SSID must be identical for all points in the wireless network. It is case sensitive and must not exceed 32 alphanumeric characters, which may be any keyboard character. Make sure this setting is the same for all points in your wireless network.
Channel. Select the appropriate channel from the list provided to correspond with your network settings. This should be between 1 and 11 (in North America) for 2.4GHz/802.11b devices and 36 and 64 (in North America) for 5GHz/802.11a devices. All points in your wireless network must use the same channel in order to function correctly.
WEP. The WEP Encryption method is Disabled by default. To enable WEP, click the WEP Key Setting button.
Mode. This option works only for 802.11b and 802.11g-draft devices in your wireless network. Select Mixed and both Wireless-G and Wireless-B comput­ers will be allowed on the network, but the speed will be reduced. Select G- Only for maximum speed, but no Wireless-B users will be allowed on the net­work.
Click the Apply button to apply your changes or Cancel to cancel your changes. If you require online help, click the Help button.
Setting WEP Encryption through the Web-based Browser Utility is done by clicking the WEP Key Setting button on the Setup Screen for any type of wire­less device used on your network.
This will open the WEP key setting screen. This screen is shown in Figure 6-3 for 802.11a wireless products and Figure 6-4 for 802.11g-draft wireless prod­ucts. Select the WEP encryption for the type(s) of wireless technology you are using. From this screen, you can select the type of WEP encryption to use as well as set the WEP Key for that encryption.
WEP Encryption
Figure 6-4
Important: Always remember that each point in your wireless net­work MUST use the same WEP Encryption method and encryption key or your wireless network will not function properly.
Dual-Band Wireless A + G Access Point
The Status tab, shown in Figure 6-6, displays current information on the Access Point, its settings and perform­ance.
The information displayed in these fields reflects the set­tings that you saved on the Setup tab. For any information about what these settings mean, turn back to the appro­priate heading in the section for the Setup tab.
The Statistics tab, shown in Figure 6-7, displays information on how well the Access Point is trans­mitting data. It shows the amount of data packets dropped with those trans­mitted. Remember, some packet loss is common in networking.
To update the statistics, click the Refresh button. Click the Help button for more information about this screen
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The Status Tab
Figure 6-6
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The WEP key must consist of the letters “A” through “F” and the numbers “0” through “9” and should be 10 characters in length for 64-bit encryption or 26 characters in length for 128-bit encryption. (When using 802.11a wireless tech­nology, 152-bit encryption is also available. The WEP key under this setting should be 32 characters in length.) All points in your wireless network must use the same WEP key to utilize WEP encryption.
Once the Passphrase is entered, click the Generate key to generate a WEP key.
Click the Apply button to apply your changes and return to the Setup tab or Cancel to cancel your changes. To clear any of the information you’ve typed but not yet applied, click the Clear button.
The Password tab, shown in Figure 6-5, allows you to change the Access Point’s password and restore factory defaults.
Changing the sign-on password for the Access Point is as easy as typing the password into the AP Password field. Then, type it again into the second field to confirm.
To restore the Access Point’s factory default settings, click the Ye s button beside Restore Factory Defaults.
Click the Apply button to apply your changes or Cancel to cancel your changes. If you require online help, click the Help button.
Figure 6-5
The Password Tab
Important: Restoring the Access Point’s factory defaults will erase all of your settings (WEP Encryption, Wireless and LAN settings, etc.), and replace them with the factory defaults.
The Statistics Tab
Figure 6-7
Dual-Band Wireless A + G Access Point
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The following resources require an Internet connection in order to access them.
Click the Linksys Website link to connect to the Linksys homepage.
Firmware can be upgraded by clicking the Upgrade Firmware link. Do not upgrade your firmware unless you are experiencing problems with the Access Point.
UPGRADING FIRMWARE:
Before upgrading the Access Point’s firmware, be sure to download the firmware from Linksys’s website at www.linksys.com.
Once that is done, click the Upgrade Firmware link on the Help Tab. This will bring up the screen shown in Figure 6-10.
Type in the location of the firmware’s file or click the Browse button to f ind the file. Then, click the Upgrade button to upgrade the firmware. To can­cel the procedure, click Cancel or for more information, click Help.
The Filters tab, shown in Figure 6-11, allows you to block and allow certain computers, by their MAC Address, from communicating with the Access Point.
To enable filtering of computers by their MAC Addresses, click the Enable radio button. To disable this feature, click the radio button by Disable.
Type the MAC Addresses for those PCs you wish to allow access to the Access Point in the MAC Address fields. As long as Filtering is enabled, PCs with MAC Addresses not entered in the MAC Address field will not be allowed to communicate with the Access Point.
Figure 6-10
To view a log of the Access Point’s activity, select the Log tab, shown in Figure 6-8.
Log. To enable permanent log­ging activity, click the Enable radio button beside Log. The default setting for this function is Disable.
If you have chosen to monitor the Access Point’s traffic, then you can designate a PC that will receive permanent log files periodically. In the Send Log to field, enter the IP address of this PC. To view these permanent logs, you must use Logviewer software, which can be downloaded free of charge from www.linksys.com.
To see a temporary log of the Access Point’s most recent activities, click the View Log button.
Click the Apply button to apply your changes or Cancel to cancel your changes. If you require online help, click the Help button.
For help on the vari­ous tabs in this Web­based Utility, along with upgrading the Access Point’s firmware and view­ing this User Guide, click the Help tab, shown in Figure 6-9.
Clicking the names of the tabs on the left­hand side of the screen brings up help for those tabs.
The Log Tab
Figure 6-8
The Help Tab
Figure 6-9
The Filters Tab
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When you’ve completed making any changes on this tab, click the Apply button to save those changes or Cancel to exit the Web-based Utility without saving changes. To clear any of the information you’ve typed by not yet applied, click the Clear but- ton. For more information on this tab, you can click the Help button.
Before making any changes to the Advanced Wireless tab, shown in Figure 6-12, please check your wireless settings on other systems, as these changes will alter the effectiveness of the Access Point. In most cases, these settings do not need to be changed.
The following settings are used in both wireless settings:
Transmission Rates. The basic transfer rates should be set depending on the speed of your wireless network. You can select from a range of transmission speeds or select Best to have the Access Point automatically engage the net­work’s optimum speed.
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Transmit Power. The greater the transmit power used, the larger the area a wireless network covers. To minimize the likelihood of eavesdropping by unau­thorized wireless users, do not use more transmit power than necessary to cover the range needed for your wireless network. Try using the Router at different levels of transmit power, and determine how much transmit power is needed to reach the wireless client, such as a PC, or access point that is farthest from the Router. Then select the appropriate level of transmit power (Full, Half,
Quarter, Eighth, or Min) from the drop-down menu. The default value is Full.
Authentication Type. This setting allows the Access Point to authenticate com-
munication with the wireless devices in your network. You may choose between Auto, Open System or Shared Key. With the Shared Key setting, all wire- less devices must have the same WEP keys so that the Access Point and the client can authenticate each other and start transmitting data. With the Open System setting, any device can join a network without performing any securi­ty check. The Authentication Type default setting is to Auto, which means that the Access Point will automatically detect whether a wireless device is set to
Shared Key, Open System, and transmit data appropriately.
Beacon Interval. This value indicates the frequency interval of the beacon. A
beacon is a packet broadcast by the Access Point to keep the network synchro­nized. A beacon includes the wireless LAN service area, the AP address, the Broadcast destination addresses, a time stamp, Delivery Traffic Indicator Maps, and the Traffic Indicator Message (TIM).
RTS Threshold. This value should remain at its default setting of 2,346. Should you encounter inconsistent data flow, only minor modifications are rec­ommended.
Fragmentation Length. This specifies the maximum size a data packet will be before splitting and creating a new packet and should remain at its default setting of 2,346. A smaller setting means smaller packets, which will create more packets for each transmission. If you have decreased this value and expe­rience high packet error rates, you can increase it again, but it will likely decrease overall network performance. Only minor modifications of this value are recommended.
The Advanced Wireless Tab
Figure 6-11
Dual-Band Wireless A + G Access Point
The SNMP tab, shown in Figure 6-15, allows you to customize the Simple Network Management Protocol (SNMP) settings. SNMP is a popular net­work monitoring and management protocol.
The Identification settings let you designate the Contact, Device Name, and Location information for the Access Point. The SNMP Community settings allow names to be assigned to any SNMP communities that have been set up in the network. You can define two different SNMP communities, with the default names being Public and Private.
SNMP V1/V2c. To enable the SNMP support feature, select Enable. Otherwise, select Disable.
Identification. In the Contact field, enter contact information for the Access Point. In the Device Name field, enter the name of the Access Point. In the Location field, specify the area or location where the Access Point resides.
SNMP Community. You may change the name from its default, Public. Enter a new name in the Public field. Then configure the community's access as either Read-Only or Read-Write.You may change the name from its default, Private. Enter a new name in the Private field. Then configure the communi­ty's access as either Read-Only or Read-Write.
When you’ve completed making any changes on this tab, click the Apply but- ton to save those changes or Cancel to cancel your changes. For more infor­mation on this tab, you can click the Help button.
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DTIM Interval. This value 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 Access Point has buffered broadcast or multicast messages for asso­ciated clients, it sends the next DTIM with a DTIM Interval value. Access Point Clients hear the beacons and awaken to receive the broadcast and multi­cast messages.
Transmission Power. (This applies to 5GHz/802.11a devices only.) This option allows you to set the power at which the Access Point transmits. This will allow you to prevent transmission outside your network radius and possi­ble lapses in network security. Selecting a value other than FULL may limit the coverage area and data rates of your wireless PCs.
When you’ve completed making any changes on this tab, click the Apply but- ton to save those changes or Cancel to exit the Web-based Utility without sav­ing changes. For more information on this tab, you can click the Help button.
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Figure 6-15
The SNMP Tab
Figure 6-14
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