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Troubleshooting

Cisco WAP2000 Wireless-G Access Point with Power Over Ethernet Administration Guide

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What IEEE 802.11b features are supported?

The product supports the following IEEE 802.11 functions:

•

CSMA/CA

•

Acknowledge protocol

•

Multi-Channel Roaming

•

Automatic Rate Selection

•

RTS/CTS

•

Fragmentation

•

Power Management

What IEEE 802.11g features are supported?

The product supports the following IEEE 802.11g functions:

•

CSMA/CA

•

Acknowledge protocol

•

OFDM protocol

•

Multi-Channel Roaming

•

Automatic Rate Selection

•

RTS/CTS

•

Fragmentation

•

Power Management

What is Ad-hoc?

An Ad-hoc wireless LAN is a group of computers, each with a WLAN adapter,
connected as an independent wireless LAN. An Ad-hoc wireless LAN is
applicable at a departmental scale for a branch or SOHO operation.

What is Infrastructure?

An integrated wireless and wired LAN is called an Infrastructure configuration.
Infrastructure is applicable to enterprise scale for wireless access to a central
database, or wireless application for mobile workers.

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Содержание WAP2000

Страница 1: ...Cisco Small Business WAP2000 Wireless G Access Point with Power Over Ethernet ADMINISTRATION GUIDE ...

Страница 2: ...ress Cisco Systems Cisco Systems Capital the Cisco Systems logo Cisco Unity Collaboration Without Limitation EtherFast EtherSwitch Event Center Fast Step Follow Me Browsing FormShare GigaDrive HomeLink Internet Quotient IOS iPhone iQuick Study IronPort the IronPort logo LightStream Linksys MediaTone MeetingPlace MeetingPlace Chime Sound MGX Networkers Networking Academy Network Registrar PCNow PIX...

Страница 3: ... Panel 5 Back Panel 6 Side Panel 7 Chapter 4 Installing the WAP2000 Access Point 8 Before You Begin 8 Placement Tips 9 Wall Mounting 9 Connecting the Equipment 10 Using a PoE Router or Switch to Connect the WAP2000 11 Using a Standard Router or Switch to Connect the WAP2000 11 Verifying the Hardware Installation 12 Chapter 5 Getting Started 13 Accessing the Web Based Utility 13 Navigating the Web ...

Страница 4: ...ring WPA2 Enterprise 33 Configuring WPA2 Enterprise Mixed 35 Configuring RADIUS 37 Configuring WEP 39 Configuring Connection Control 41 Disabling Wireless Connection Control 41 Allowing Specified MAC Addresses to Connect to the Wireless Network 42 Preventing MAC Addresses from Connecting to the Wireless Network 42 Configuring Advanced Settings 43 Configuring VLAN QoS 46 Configuring the Access Poin...

Страница 5: ...urity Checklist 72 Change the Default Wireless Network Name or SSID 73 Disable SSID Broadcast 73 Change the Default Password 73 Change the Administrator s Password Regularly 73 Enable MAC Address Filtering 74 Change the SSID Periodically 74 Enable Encryption 74 General Network Security Guidelines 76 Additional Security Tips 76 Appendix C Specifications 77 Specifications 77 Setup Configuration 77 M...

Страница 6: ...tes wireless signal dead spots in offices and other buildings so users can connect to the network in more areas The access point comes with two 3 dBi antennas for increased power also helping to extend the range of the access point Advanced security features like Wi Fi Protected Access WPA2 Enterprise make this solution ideal for business Integrated Quality of Service QoS features provide consiste...

Страница 7: ...ipped with wireless cards or adapters can communicate with each other to form an ad hoc network without the use of an access point Cisco wireless adapters also provide access to a wired network when using an access point or wireless router An integrated wireless and wired network is called an infrastructure network Each wireless computer in an infrastructure network can talk to any computer in a w...

Страница 8: ...ning combined with a clear radio signal will greatly enhance performance NOTE Spanning Tree Protocol should be disabled on the switches connecting to the APs to allow roaming to work without disruption Network Layout The WAP2000 access point has been designed for use with 802 11g and 802 11b products such as the notebook adapters for your laptop computers PCI adapters for your desktop computers an...

Страница 9: ...s example shows a typical infrastructure wireless network setup The wireless access point connects to a switch that provides power to the access point The access point can connect multiple wireless devices to the network This network provides connectivity among wireless network devices and computers that have a wired connection to the switch The switch connects to a router that connects to an ISP ...

Страница 10: ...nel page 5 Back Panel page 6 Side Panel page 7 Front Panel The LEDs on the front panel of the access point display information about network activity POWER Green Lights up when the access point is powered on PoE Green Lights up when the access point is powered through an Ethernet cable WIRELESS Green Lights up when the wireless module is active on the access point The LED flashes when the access p...

Страница 11: ...tachable 3 dBi omnidirectional antennas Adjust the two antennas so that they form a 90 degree angle for best MIMO range performance RESET Button There are two ways to reset the access point to the factory default configuration Either press the Reset button for more than ten seconds or restore the defaults using the web based utility of the access point If you press the Reset button for less than t...

Страница 12: ...t Overview Side Panel Cisco WAP2000 Wireless G Access Point with Power Over Ethernet Administration Guide 7 3 Side Panel Security Slots The security slots can be utilized to attach a lock to the access point ...

Страница 13: ...ps page 9 Wall Mounting page 9 Connecting the Equipment page10 Verifying the Hardware Installation page 12 Before You Begin Before you begin the installation make sure that you have the following equipment and services Tools for installing the hardware Category 5e Ethernet cable PC with Microsoft Internet Explorer 6 0 or later or Mozilla Firefox for using the web based system management tools A Ci...

Страница 14: ...round the WAP2000 Mechanical Loading Be sure that the WAP2000 is level and stable to avoid any hazardous conditions Power Outlet Choose a location that is within reach of a power outlet For desktop placement place the WAP2000 horizontally on a flat surface so it sits on its four rubber feet Wall Mounting The WAP2000 can be mounted either vertically or horizontally STEP 1 Determine where you want t...

Страница 15: ... WAP2000 so that the wall mount slots on the bottom of the access point line up with the two screws STEP 3 Place the wall mount slots over the screws and slide the access point down until the screws fit snugly into the wall mount slots Connecting the Equipment You can connect the WAP2000 to your network in one of the following ways Using a PoE router or switch Using a standard router or switch 276...

Страница 16: ...of the access point to a PoE port on the PoE router or switch The LEDs on the front panel light up as soon as the WAP2000 powers on Using a Standard Router or Switch to Connect the WAP2000 To connect the WAP2000 to your network using a standard switch follow these steps STEP 1 Use the supplied Ethernet cable to connect the Ethernet port of the access point to an Ethernet port on the router or swit...

Страница 17: ...P2000 powers on Verifying the Hardware Installation To verify the hardware installation complete the following tasks Check the cable connections Check the LED states as described in Chapter 3 Product Overview NOTE If you need help resolving a problem visit the Cisco Small Business Support Community at www cisco com go smallbizsupport For technical documentation and other links see Appendix D Where...

Страница 18: ...14 Accessing the Web Based Utility The firmware v2 0 3 4 or later releases changed the factory default IP address configuration to DHCP Before installation make sure your DHCP server is running and can be reached You may need to disconnect and reconnect the devices for them to discover their new IP addresses from the DHCP server If the WAP2000 access point does not receive a DHCP response after 60...

Страница 19: ...r the default of admin STEP 6 Click OK The Setup window of the web based utility appears Navigating the Web Based Utility The web based utility consists of five main windows Setup Wireless AP Mode Administration Status Additional windows branch out from these main windows For a basic network setup you may only need to use the following windows of the web based configuration utility Setup Enter you...

Страница 20: ...iguration on this window Security Configures the access point s security settings including access authentication data encryption and wireless isolation Connection Control Populates your access list to permit or block specific MAC addresses from accessing your wireless network Advanced Settings Configures the access point s more advanced wireless settings such as beacon interval and output power V...

Страница 21: ...Local Network Displays system information including software and hardware version MAC address and IP address on the LAN side of the access point Wireless Displays wireless network settings including SSID network mode and wireless channel System Performance Displays the current traffic statistics of the access point s wireless and LAN ports About Click the About link in the top right corner of the ...

Страница 22: ...the web based configuration utility Configuration is not required if you wish to use the access point right out of the box with its default settings This chapter includes the following sections Setting Up Your Access Point page 18 Configuring Wireless Settings page 22 Configuring the Access Point s Modes of Operation page 48 Configuring Administration Settings page 51 Verifying Access Point Status...

Страница 23: ...tion describes how to configure the general settings of the access point Configuring Basic Setup Settings page18 Configuring Time Settings page 21 Configuring Basic Setup Settings The Setup Basic Setup window displays the general settings of the access point You can configure the following basic setup settings Configuring Basic Setup Settings page19 Configuring Network Setup Settings page 20 ...

Страница 24: ... a record of the host name exists in your DNS server The access point publishes the host name to your DNS server if you configured the access point to acquire the IP address from a DHCP server Follow your organization s policy when assigning this name The default name is Cisco Device Name Enter the device name for the access point This name is only for identification purposes Unique memorable name...

Страница 25: ...r enabled on the LAN and want it to assign an IP address to the access point select this option STEP 3 If you selected Static IP Address enter the following information in the Network Setup section Local IP Address Enter the IP address of the access point Make sure the address is not used by other devices on the network The default is 192 168 1 245 Subnet Mask Enter the subnet mask of your network...

Страница 26: ... network administrator accurately search the system log to identify problems You can set the time either manually or use the NTP option to automatically set the time from a time server if the access point can access the Internet NTP is the default setting To configure the time settings for the access point follow these steps STEP 1 Click Setup Time STEP 2 To manually configure the time settings a ...

Страница 27: ...ccess point in a location that observes daylight saving time check the Automatically adjust clock for daylight saving changes check box d To use a local NTP server click Enabled The default is Disabled In the NTP Server IP field enter the IP address of your NTP Server STEP 4 Click Save Configuring Wireless Settings This section describes how to configure the wireless settings of the access point C...

Страница 28: ...w offers settings for up to four different SSIDs Each SSID has its own MAC address on this access point To configure the Wireless Network basic attributes for the entire system and for each SSID follow these steps STEP 1 Click Wireless Basic Settings STEP 2 From the Wireless Network Mode drop down menu select one of the following modes The default is Mixed Disable Disables wireless connectivity co...

Страница 29: ...nnel The default setting is Channel 6 STEP 4 In the SSID Name and SSID Broadcast fields enter the SSID and select whether you want your access point to broadcast it respectively SSID Name This field specifies the unique name to be shared among all devices in a wireless network It is case sensitive must not exceed 32 alphanumeric characters and may be any keyboard character Make sure this name is u...

Страница 30: ...1i Enterprise modes use a RADIUS server for authentication To configure the wireless security settings for the access point follow these steps STEP 1 Click Wireless Security STEP 2 Configure wireless isolation between SSIDs a From the Select SSID drop down menu select any of the SSID names configured previously on the Basic Wireless Settings window b To isolate wireless clients from each other fro...

Страница 31: ...select one of the following security modes and enter the information needed for that particular mode as described in one of the following sections Configuring WPA Personal page 27 Configuring WPA2 Personal page 28 Configuring WPA2 Personal Mixed page 29 Configuring WPA Enterprise page 31 Configuring WPA2 Enterprise page 33 Configuring WPA2 Enterprise Mixed page 35 Configuring RADIUS page 37 Config...

Страница 32: ...d forward compatible with IEEE 802 11i To configure the WPA Personal also known as WPA PSK wireless security settings for the access point follow these steps STEP 1 Click Wireless Security STEP 2 From the Security Mode drop down menu select WPA Personal STEP 3 To enable wireless isolation across SSIDs select Enabled from the drop down menu Otherwise select Disabled STEP 4 To enable wireless isolat...

Страница 33: ...hm you want to use TKIP or AES The default is TKIP Shared Secret Enter a shared secret of 8 63 characters Key Renewal Timeout Enter a key renewal timeout period which instructs the access point how often it should change the encryption keys The default is 3600 seconds STEP 6 Click Save Configuring WPA2 Personal To configure the WPA2 Personal wireless security settings for the access point follow t...

Страница 34: ...down menu Otherwise select Disabled STEP 5 Provide the following information Encryption WPA2 always uses AES for data encryption Shared Secret Enter a shared secret of 8 63 characters Key Renewal Timeout Enter a key renewal timeout period which instructs the access point how often it should change the encryption keys The default is 3600 seconds STEP 6 Click Save Configuring WPA2 Personal Mixed Thi...

Страница 35: ... down menu select WPA2 Personal Mixed STEP 3 To enable wireless isolation across SSIDs select Enabled from the drop down menu Otherwise select Disabled STEP 4 To enable wireless isolation within SSID select Enabled from the drop down menu Otherwise select Disabled STEP 5 Provide the following information Encryption Mixed Mode automatically chooses TKIP or AES for data encryption Shared Secret Ente...

Страница 36: ...US server for client authentication Enterprise modes use a RADIUS server for authentication NOTE Use WPA Enterprise only when a RADIUS server is connected to the access point To configure the WPA Enterprise wireless security settings for the access point follow these steps STEP 1 Click Wireless Security STEP 2 From the Security Mode drop down menu select WPA Enterprise STEP 3 To enable wireless is...

Страница 37: ...the RADIUS server s IP address RADIUS Server Port Enter the port number used by the RADIUS server The default is 1812 Encryption WPA offers you two encryption methods TKIP and AES for data encryption Select the type of algorithm you want to use TKIP or AES The default is TKIP Shared Secret Enter the shared secret key used by the access point and RADIUS server Key Renewal Timeout Enter a key renewa...

Страница 38: ...nterprise only when a RADIUS server is connected to the access point To configure the WPA2 Enterprise wireless security settings for the access point follow these steps STEP 1 Click Wireless Security STEP 2 From the Security Mode drop down menu select WPA2 Enterprise STEP 3 To enable wireless isolation across SSIDs select Enabled from the drop down menu Otherwise select Disabled STEP 4 To enable w...

Страница 39: ... RADIUS server s IP address RADIUS Server Port Enter the port number used by the RADIUS server The default is 1812 Encryption WPA2 always uses AES for data encryption Shared Secret Enter the shared secret key used by the access point and RADIUS server Key Renewal Timeout Enter a key renewal timeout period which instructs the access point how often it should change the encryption keys The default i...

Страница 40: ... Enterprise The access point automatically chooses the encryption algorithm used by each client device To configure the WPA2 Enterprise Mixed wireless security settings for the access point follow these steps STEP 1 Click Wireless Security STEP 2 From the Security Mode drop down menu select WPA2 Enterprise Mixed STEP 3 To enable wireless isolation across SSIDs select Enabled from the drop down men...

Страница 41: ...er s IP address RADIUS Server Port Enter the port number used by the RADIUS server The default is 1812 Encryption Mixed Mode automatically chooses TKIP or AES for data encryption Shared Secret Enter the shared secret key used by the access point and RADIUS server Key Renewal Timeout Enter a key renewal timeout period which instructs the access point how often it should change the encryption keys T...

Страница 42: ...cally generated by the RADIUS server NOTE Manual WEP key is no longer supported to ensure compatibility with Microsoft s Windows implementation To configure the RADIUS wireless security settings for the access point follow these steps STEP 1 Click Wireless Security STEP 2 From the Security Mode drop down menu select RADIUS STEP 3 To enable wireless isolation across SSIDs select Enabled from the dr...

Страница 43: ...hernet Administration Guide 38 6 STEP 5 Provide the following information RADIUS Server IP Address Enter the RADIUS server s IP address RADIUS Server Port Enter the port number used by the RADIUS server The default is 1812 Shared Secret Enter the shared secret key used by the access point and RADIUS server STEP 6 Click Save ...

Страница 44: ... improved security migrate to WPA or WPA2 The Wired Equivalent Privacy WEP security mode is not recommended any more due to its weak security protection It was defined in the original IEEE 802 11 specification To configure the WEP wireless security settings for the access point follow these steps STEP 1 Click Wireless Security STEP 2 From the Security Mode drop down menu select WEP ...

Страница 45: ...er Open System or Shared Key The default is Open System Default Transmit Key Select the key to be used for data encryption Encryption Select a level of WEP encryption 64 bits 10 hex digits or 128 bits 26 hex digits Passphrase If you want to generate WEP keys using a passphrase then enter the passphrase in the field provided and click Generate The auto generated keys are not as strong as manual WEP...

Страница 46: ...o either permit or block specific wireless client devices connecting to associating with the access point Disabling Wireless Connection Control You can use the Wireless Connection Control window to disable wireless connection control To disable wireless connection control for your access point follow these steps STEP 1 Click Wireless Connection Control STEP 2 From the Select SSID drop down menu se...

Страница 47: ...ly devices with a MAC address specified in the Connection Control List can connect to the access point STEP 5 To automatically capture the MAC addresses of each client to allow click Wireless Client List A window appears to let you select each MAC address from the table The selected MAC address is copied into the Connection Control List Alternatively manually enter the MAC addresses of the wireles...

Страница 48: ... capture the MAC addresses of each client to block click Wireless Client List A window appears to let you select each MAC address from the table The selected MAC address is copied into the Connection Control List Alternatively manually enter the MAC addresses of the wireless client devices you want to disallow in the text boxes labeled MAC 01 16 STEP 6 Click Save Configuring Advanced Settings This...

Страница 49: ... control frames broadcast multicast frames or ACK frames To support both 802 11b 802 11g devices use the default setting Mixed so that frames can be decoded by all devices To support 802 11g devices only use the All G only setting to achieve higher frame rates For regular data frames configure the transmission rate through the Tx Rate Limiting field in the Wireless VLAN QoS window Power Output Adj...

Страница 50: ...d reception to ensure efficient communication This value should remain at its default setting of 2347 If you encounter inconsistent data flow only minor modifications are recommended Fragmentation Threshold This specifies the maximum size a data packet can be before splitting and creating a new packet It should remain at its default setting of 2346 A smaller setting means smaller packets which cre...

Страница 51: ... 802 1q VLAN tagged traffic between the wired LAN and wireless LAN Your access point maps the VLAN tag wired side to different SSIDs wireless side according to your specified settings Select Disabled and your access point drops all tagged traffic coming in from the wired LAN The default is Disabled Default VLAN ID Enter the default VLAN ID number 1 4094 the default value is 1 The default VLAN numb...

Страница 52: ...Disabled SSID Name Displays the SSIDs defined in the Basic Wireless Settings window Wireless Basic Settings If an SSID has been disabled the options cannot be configured VLAN ID Select a VLAN ID 1 4094 for the SSID for where you want to map the traffic to on the wired side The wireless traffic does not carry VLAN information Multiple SSIDs can map to the same VLAN on the wired side Priority To ass...

Страница 53: ...ss computers to a wired network In most cases no change is necessary when choosing this mode Wireless Repeater Allows you to communicate with and re transmit the signal of another remote wireless access point device if this access point is within its range Wireless Bridge Wirelessly connects your wired network to other physically separate wired networks having their own access points similarly con...

Страница 54: ...ss Repeater mode the wireless repeater is able to talk to a remote access point within its range and retransmit its signal You may alternately wish to change the access point s mode of operation if you want to use the access point as a wireless bridge for example you can use two access points in the Wireless Bridge mode to connect two wired networks that are in two different buildings For the Wire...

Страница 55: ... a repeater Check this option to use another wireless device to repeat the signal of this access point MAC1 to MAC3 Enter the MAC addresses of up to three wireless devices that should act as the repeaters You can use up to 3 repeaters STEP 3 To configure the access point for operation as a wireless repeater click Wireless Repeater and fill in the following information Remote Access Point s MAC Add...

Страница 56: ...onfiguring Administration Settings This section describes how to configure the administration settings of the access point Configuring Management Settings page 52 Configuring the Administration Log page 55 Restoring Factory Default Settings page 57 Upgrading the Firmware page 58 Rebooting the Access Point page 59 Managing the Access Point s Configuration page 60 ...

Страница 57: ...Administration Guide 52 6 Configuring Management Settings The Administration Management window allows you to configure the password web access and Simple Network Management Protocol SNMP settings You should frequently change the username password that controls access to the access point s web based utility to prevent unauthorized access ...

Страница 58: ...ccess the web based configuration utility The default is Disabled Wireless Web Access Allow or deny wireless clients access to the web based configuration utility The default is Disabled SNMP settings SNMP SNMP is a popular network monitoring and management protocol It provides network administrators with the ability to monitor the status of the access point and receive notification of any critica...

Страница 59: ...ate SNMP Trap Community Enter the password required by the remote host computer that receives trap messages or notices sent by the access point SNMP Trusted Host Enter the IP address of the host trusted with accessing the access point s SNMP information If this field is set to 0 0 0 0 then access point will response to SNMP message from every host within the LAN SNMP Trap Destination Enter the IP ...

Страница 60: ...ings of the access point follow these steps STEP 1 Click Administration Log STEP 2 Configure the log settings Email Alert E Mail Alert If you want the access point to send e mail alerts in the event of certain activities select Enabled The default is Disabled E Mail Address for Logs Enter the e mail address that receives logs Log Queue Length Enter the length of the log that is e mailed to you The...

Страница 61: ...ent log the access point can send a detailed log to an external Syslog server The access point s Syslog captures all log activities and includes this information about all data transmissions every connection source and destination IP address IP server and number of bytes transferred Log Select the events that you want the access point to log Unauthorized Login Attempt If you want to receive alert ...

Страница 62: ...gs CAUTION Restoring the factory default settings deletes all your custom settings To preserve your custom settings save them to disk before restoring the factory default settings as described in Managing the Access Point s Configuration on page 60 To restore the factory default settings of the access point follow these steps STEP 1 Click Administration Factory Default STEP 2 Click Restore Factory...

Страница 63: ...o use Upgrading the firmware deletes all custom settings To preserve your custom settings save them to disk before upgrading the firmware as described in Managing the Access Point s Configuration on page 60 To upgrade the firmware of the access point follow these steps STEP 1 Upgrade the firmware of the access point a Download the firmware upgrade file from www cisco com en US products ps10049 ind...

Страница 64: ... screen instructions STEP 2 Restore your custom settings as described in Managing the Access Point s Configuration on page 60 Rebooting the Access Point The Administration Reboot window allows you to reboot the access point To reboot the access point follow these steps STEP 1 Click Administration Reboot This feature is useful when you need to remotely reboot the access point STEP 2 Click Reboot ...

Страница 65: ...ess point s current settings or restore a configuration file of previously saved settings to the access point To manage the configuration for the access point follow these steps STEP 1 Click Administration Config Management STEP 2 To create a backup configuration file click Save Configuration to File and follow the on screen instructions STEP 3 To restore upload the access point s configuration se...

Страница 66: ...de 61 6 Verifying Access Point Status This section describes how to check the status of the access point Checking Local Network Status page 61 Checking Wireless Status page 63 Checking System Performance page 64 Checking Local Network Status The Status Local Network window displays the access point s current status information for the local network ...

Страница 67: ...current hardware Software Version The version of the access point s current software Local MAC Address The MAC address of the access point s LAN interface System Up Time The length of time the access point has been running Local Network IP Address The access point s IP address as it appears on your local network Subnet Mask The access point s subnet mask Default Gateway The access point s default ...

Страница 68: ...network status of the access point follow these steps STEP 1 Click Status Wireless This page displays the status of the wireless network MAC Address The MAC address of the access point s wireless interface Mode The access point s wireless network mode Channel The access point s channel setting for the SSID Bandwidth Utilization The percentage of the bandwidth being used VLAN Trunk The VLAN Trunk s...

Страница 69: ... System Performance window displays the access point s status information for its current settings and data transmissions To check system performance of the access point follow these steps STEP 1 Click Status Systems Performance This page displays the access point s system performance values Wired The statistics for the wired network the LAN Name The network to which the statistics refer i e the L...

Страница 70: ...received Wireless The statistics for the wireless network Name The wireless network SSID to which the statistics refer IP Address The access point s local IP address MAC Address The MAC Address of the access point s wireless interface Connection This shows the status of the access point s wireless networks Packets Received The number of packets received for each wireless network Packets Sent The n...

Страница 71: ...a set of instructions or protocol all computers follow to communicate over a network This is true for wireless networks as well Your computers will not be able to utilize wireless networking without having TCP IP enabled Windows Help provides complete instructions on enabling TCP IP Shared Resources If you wish to share printers folder or files over your network Windows Help provides complete inst...

Страница 72: ...eration over a network Can I play multiplayer games with other users of the wireless network Yes as long as the game supports multiple players over a local area network LAN Refer to the game s documentation for more information What is the IEEE 802 11b standard It is one of the IEEE standards for wireless networks The 802 11b standard allows wireless networking hardware from different manufacturer...

Страница 73: ...02 11g functions CSMA CA Acknowledge protocol OFDM protocol Multi Channel Roaming Automatic Rate Selection RTS CTS Fragmentation Power Management What is Ad hoc An Ad hoc wireless LAN is a group of computers each with a WLAN adapter connected as an independent wireless LAN An Ad hoc wireless LAN is applicable at a departmental scale for a branch or SOHO operation What is Infrastructure An integrat...

Страница 74: ...and the distance of each access point to the wired backbone Based on that information the node next selects the right access point and registers its address Communications between end node and host computer can then be transmitted up and down the backbone As the user moves on the end node s RF transmitter regularly checks the system to determine whether it is in touch with the original access poin...

Страница 75: ...led a chip or chipping code The longer the chip the greater the probability that the original data can be recovered Even if one or more bits in the chip are damaged during transmission statistical techniques embedded in the radio can recover the original data without the need for retransmission To an unintended receiver DSSS appears as low power wideband noise and is rejected ignored by most narro...

Страница 76: ...o know the exact range of your wireless network without testing Every obstacle placed between an access point and wireless computer will create signal loss Leaded glass metal concrete floors water and walls will inhibit the signal and reduce range Start with your access point and your wireless computer in the same room and move it away in small increments to determine the maximum range in your env...

Страница 77: ...twork you need to take some additional steps to keep your network secure Security Checklist The following is a complete list of security precautions to take you should follow at least steps 1 through 6 1 Change the default SSID See Change the Default Wireless Network Name or SSID page 73 2 Disable SSID Broadcast See Disable SSID Broadcast page 73 3 Change the default password for the Administrator...

Страница 78: ...sting the SSID While this option may be more convenient it allows anyone to log into your wireless network This includes hackers So don t broadcast the SSID Change the Default Password For wireless products such as access points and routers you will be asked for a password when you want to change their settings These devices have a default password set by the factory The Cisco default password is ...

Страница 79: ...on as a cure all for wireless security concerns This is overstating WEP s ability Again this can only provide enough security to make a hacker s job more difficult CAUTION Always remember that each device in your wireless network must use the same encryption method and encryption key or your wireless network will not function properly There are several ways that WEP can be maximized Use the highes...

Страница 80: ...Advanced Encryption System for stronger data encryption WPA2 Personal If you do not have a RADIUS server enter a password in the Pre Shared key field of 8 63 characters and enter a Group Key Renewal period time between 0 and 99 999 seconds which instructs the AP or other device how often it should change the encryption keys WPA2 Enterprise WPA2 used in coordination with a RADIUS server This should...

Страница 81: ...words on a regular basis Install anti virus software and personal firewall software Disable file sharing peer to peer Some applications may open file sharing without your consent and or knowledge Additional Security Tips Keep wireless routers access points or gateways away from computers walls and windows Turn wireless routers access points or gateways off when they are not being used at night dur...

Страница 82: ...00 Standards IEEE802 11g IEEE802 11b IEEE802 3 IEEE802 3u IEEE802 3af Power Over Ethernet 802 1p QoS priority 802 1q VLAN 802 1X Security Authentication 802 11i Ready Security WPA2 802 11e Ready Wireless QoS 802 11F Wireless Roaming Ports 10 Base T 100 Base TX Ethernet 12 VDC Power Buttons Reset Cabling Type UTP CAT 5 LEDs Power POE Wireless Ethernet Operating System Linux Web UI Built in web user...

Страница 83: ...rough web browser Diags Flash etc Flash RAM LAN WLAN DHCP DHCP Client Access Point Access Point Mode point to point Bridge Mode point to multipoint Bridge Mode Repeater Mode Spec Modulation Radio and Modulation Type 802 11b DSSS 11g OFDM Channels Operating Channels 11 North America 13 Most of Europe ETSI and Japan of Internal Ant None of External Ant 2 Omni Directional 3 dBi SMA detachable Transmi...

Страница 84: ...s 85dBM WEP WPA WPA2 WEP 64bit 128bit WPA PSK WPA2 PSK WPA ENT WPA2 ENT Access Control Wireless Connection Control MAC Based SSID Broadcast SSID Broadcast Enable Disable 802 1X IEEE 802 1X support Wireless Client Isolation Wireless Client devices can be isolated from each other either within an SSID or between two SSIDs QoS 4 queues WMM wireless priority General Wireless roaming based on IAPP Auto...

Страница 85: ...ons W x D x H 8 66 in x 6 69 in x 1 50 in 220 mm x 170 mm x 38 mm Weight 1 69 lb 0 765 kg Power 12V 1A DC input and IEEE802 3af Compliant PoE Max Power Draw 3 48W Certification FCC ICES 003 CE Operating Temp 14 to 131 F 10 to 55 C Storage Temp 22 to 158 F 30 to 70 C Operating Humidity 10 to 90 Noncondensing Storage Humidity 5 to 95 Noncondensing ...

Страница 86: ...entation Login Required www cisco com support Phone Support Contacts www cisco com en US support tsd_cisco_small_ business_support_ center_contacts html Software Downloads Login Required Go to tools cisco com support downloads and enter the model number in the Software Search box Product Documentation WAP2000 Wireless G Access Point www cisco com en US products ps10049 index html Cisco Small Busin...

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