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RTS Threshold 

The RTS threshold determines the packet size at which the radio issues a 
request to send (RTS) before sending the packet. A low RTS Threshold setting 
can be useful in areas where many client devices are associating with the 
device, or in areas where the clients are far apart and can detect only the 
device and not each other. You can enter a setting ranging from 0 to 2347 
bytes. 

Beacon Interval 

The beacon interval is the amount of time between access point beacons in 
mini-seconds. The default beacon interval is 100. 

ACK Timing 

Acknowledgement Timing, is the amount of time that device wait client’s 
response. This concept is related to EIFS (Extended Inter-Frame Space). 
The EIFS interval shall begin while the device is idle after detection of the 
erroneous frame. The EIFS is defined to provide enough time for another 
device to acknowledge what was, to this device, an incorrectly received 
frame before this device commences transmission. The default setting of 
ACK timing is 0. You may need to change this value due to the environment 
or distance.   

Client Expired Time 

The client expired time determines time interval the client need to re-associate 
with the device while client is idle. The default client expired time is 300 sec.   

MTU Size 

Maximum Transmission Unit, the default MTU size is 1500. The MTU setting 
controls the maximum Ethernet packet size your PC will send. Why a limit? 
Because although larger packets can be constructed and sent, your ISP and 
Internet backbone routers and equipment will fragment any larger than their 
limit, then these parts are re-assembled by the target equipment before 
reading. This fragmentation and re-assembly is not optimal. You may need to 
change the MTU for optimal performance of your wireless LAN traffic. 

Data Rate 

The standard IEEE 802.11b/11g supports 1, 2, 5.5, 11 / 6, 9, 12, 18, 24, 36, 48 
and 54 Mbps data rates. You can choose the rate that the device uses for data 
transmission. The default value is “auto”. The device will use the highest 
possible selected transmission rate. 

Broadcast SSID 

Broadcasting the SSID will let your wireless clients find the device 
automatically. If you are building a public Wireless Network, disable this 
function can provide better security. Every wireless stations located within the 
coverage of the device must connect this device by manually configure the 

Summary of Contents for ZWA-G220

Page 1: ...Wireless LAN Device Series Multi Mode AP ZWA G220 User s Manual Version 1 4 3b 2007 07 31 ...

Page 2: ...ART TO CONFIGURE 37 MAC CLONE FOR SINGLE ETHERNET CLIENT 39 EXTEND THE REMOTE AP BSS 40 CH 3 CONFIGURING WDS 42 WDS NETWORK TOPOLOGY 42 WDS APPLICATION 44 CH 4 ADVANCED CONFIGURATIONS 46 CONFIGURING LAN TO WAN FIREWALL 46 PORT FILTERING 46 IP FILTERING 47 MAC FILTERING 48 NAT NETWORK ADDRESS TRANSLATION 49 CONFIGURING PORTFORWARDING VIRTUALSERVER 50 MULTIPLE SERVERS BEHIND NAT EXAMPLE 50 CONFIGURI...

Page 3: ...TUP 64 DYNAMIC ROUTE SETUP 65 VPN PASS THROUGH 66 USING CLI MENU 66 THE SYSTEM MANAGEMENT 68 SNMPAGENT 68 MISCELLANEOUS SETTINGS 71 PING WATCHDOG 72 AIMING TOOL 73 CONNECTING PROFILE 74 FIRMWARE UPGRADE 75 CONFIGURATION DATA BACKUP RESTORE 76 AUTO DISCOVERY TOOL 77 ...

Page 4: ...o the following two conditions 1 This device may not cause harmful interference and 2 this device must accept any interference received including interference that may cause undesired operation The user s manual or instruction manual for an intentional or unintentional radiator shall caution the user that changes or modifications not expressly approved by the party responsible for compliance could...

Page 5: ...o correct the interference by one or more of the following measures z Reorient or relocate the receiving antenna z Increase the separation between the equipment and receiver z Connect the equipment into an outlet on a circuit different from that to which the receiver is connected z Consult the dealer or an experienced radio TV technician for help FCC RF Radiation Exposure Statement This equipment ...

Page 6: ... R TTE Directive 1999 5 EC This device will be sold in the following EEA countries Austria Italy Belgium Liechtenstein Denmark Luxembourg Finland Netherlands France Norway Germany Portugal Greece Spain Iceland Sweden Ireland United Kingdom Cyprus Czech Republic Estonia Hungary Latvia Lithuania Malta Slovakia Poland Slovenia Bulgaria Romania ...

Page 7: ... device make sure the package contains the following items ZWA G220 Multi Mode AP unit 1 Power Adapter 1 RJ 45 Cable 1 Multi Mode AP Power Adapter RJ 45 Cable Back panel connections From Left to Right DC jack ZW 220 can use power source in DC jack Please supply the power in ...

Page 8: ... This SMA Reverse allows the user to connect antenna or RF cable At least connect an antenna to help ZW 220 to send and receive RF signal ZW 220 integrates LNA PA Low Noise Amplifier module and has at lease 3dB RF sensitivity better than the regular WLAN products Hardware Installation Once you check off everything from the package you can start to install the device You can use the wall mount hole...

Page 9: ... 2 254 for LAN 172 1 1 1 for WAN so you need to make sure the IP address of your PC is in the same subnet as the device such as 192 168 2 X for LAN 172 1 1 X for WAN Please note that the DHCP server inside the device is default to up and running Do not have multiple DHCP servers in your network environment otherwise it will cause abnormal situation We also provide an auto discovery tool which is f...

Page 10: ...sabled WISP Wireless ISP This mode can let you access the AP of your wireless ISP and share the same public IP address from your ISP to the PCs connecting with both the wired Ethernet ports of the device To use this mode first you must set the wireless radio to be client mode connecting to the AP of your ISP as the WAN connection and then you can configure the WAN IP configuration to meet your ISP...

Page 11: ...on WDS AP This mode combines WDS plus AP modes it not only allows WDS connections but also the wireless clients can survey and connect to the device The following table shows the supporting combination of operation and wireless radio modes Bridge Router WISP AP V V X WDS V V X Client V X V AP WDS V V X Hereafter are some topologies of network application for your reference Bridge Mode With AP Brid...

Page 12: ...visit Internet through DEV1 We assume all the devices keep the factory default setting To make sure that user can continuing press the rest button for more than 5 seconds to restore the factory default setting The following descriptions show the steps to configure DEV1 to DEV5 Configure DEV1 1 Connect the ADSL modem to Ethernet port of device using Ethernet cable 2 Access the web server http 192 1...

Page 13: ...ion Mode to Router mode 5 Press Next button then disable Time Zone function 6 Press Next button then set the IP address of LAN interface 7 Press Next button then select the PPPoE for WAN Access Type and fill in the User Name and Password fields ...

Page 14: ...utton then select the AP WDS for mode and change the SSID to DEV1 9 Press Next button then select None for Encryption then press Finished button 10 Wait for refreshing web page 11 Use WDS Settings page to configure WDS ...

Page 15: ...dd the BSSID of DEV2 to Current WDS AP List 13 Since we access the device by wireless connection it may temporarily disconnect when applying the WDS setting After re connecting to the device use the Status page to check the settings ...

Page 16: ... but different MAC addresses it may cause you not able to access the web server of device If the situation happens please try to clean the ARP table of your PC by DOS command arp d then you can access the web server of device using the default IP address 2 Use Wizard page to setup device 3 Press Next button then set the Operation Mode to Bridge mode 4 Press Next button then disable Time Zone funct...

Page 17: ...n set the IP address of LAN interface 6 Press Next button then select the AP WDS for mode and change the SSID to DEV2 7 Press Next button then select None for Encryption then press Finished button 8 Wait for refreshing web page ...

Page 18: ...17 9 Access the web server by new IP address 192 168 2 202 then use LAN Interface page to disable DHCP Server 10 Wait for refreshing web page 11 Use WDS Settings page to configure WDS ...

Page 19: ...18 12 Enable WDS function and add the BSSID of DEV1 to Current WDS AP List 13 Use the Status page to check the settings ...

Page 20: ...ault IP address but different MAC addresses it may cause you not able to access the web server of device If the situation happens please try to clean the ARP table of your PC by DOS command arp d then you can access the web server of device using the default IP address 2 Use LAN Interface page to set the IP address of LAN interface and disable DHCP server 3 Wait for refreshing web page ...

Page 21: ...20 4 Access the web server by new IP address 192 168 2 203 then use Basic Settings page to change SSID and CHANNEL 5 Use the Status page to check the settings ...

Page 22: ...ut different MAC addresses it may cause you unable to access the web server of device If the situation happens please try to clean the ARP table of your PC by DOS command arp d then you can access the web server of device using the default IP address 2 Use Wizard page to setup device 3 Press Next button then set the Operation Mode to Wireless ISP mode 4 Press Next button then disable Time Zone fun...

Page 23: ...ss of LAN interface 6 Press Next button then select the DHCP Client for WAN Access Type 7 Press Next button then select the Client for mode and change the SSID to DEV4 8 Press Next button then select None for Encryption then press Finished button ...

Page 24: ...f your PC to 192 168 3 x then access the web server by the new IP address 192 168 3 1 and use Status page check the setting 11 If the State of Wireless Configuration is not Connected or you want to refresh the RSSI please use Site Survey page to re connect a AP ...

Page 25: ...ut different MAC addresses it may cause you unable to access the web server of device If the situation happens please try to clean the ARP table of your PC by DOS command arp d then you can access the web server of device using the default IP address 2 Use Wizard page to setup device 3 Press Next button then set the Operation Mode to Wireless ISP mode 4 Press Next button then disable Time Zone fun...

Page 26: ...n set the IP address of LAN interface 6 Press Next button then select the Client for mode and change the SSID to DEV5 7 Press Next button then select None for Encryption then press Finished button 8 Wait for refreshing web page ...

Page 27: ...26 9 Access the web server by the new IP address 192 168 2 205 and use LAN Interface page to disable DHCP Server 10 Wait for refreshing webpage 11 Use State page to check setting ...

Page 28: ...27 12 If the State of Wireless Configuration is not Connected or you want to refresh the RSSI please use Site Survey page to re connect a AP ...

Page 29: ...ents to join a wireless local network 2 Client Support Infrastructure and Ad hoc network types to act as a wireless adapter 3 WDS Wireless Distribution System this mode joins to a WDS network which combines up to 8 WDS AP only devices with WDS function supported can connect to it all the wireless clients can t survey and connect the device when the mode is selected 4 AP WDS Support both AP and WDS...

Page 30: ...rking must use the same SSID and channel for establishing the wireless connection PC 3 PC 2 AP Client 1 AP Client 2 AP Client 3 PC 1 In client mode the device can t support the Router mode function including Firewall and WAN settings SSID The SSID is a unique identifier that wireless networking devices use to establish and maintain wireless connectivity Multiple access point bridges on a network o...

Page 31: ...ina 6 2437 Americas EMEA Japan Israel and China 7 2442 Americas EMEA Japan Israel and China 8 2447 Americas EMEA Japan Israel and China 9 2452 Americas EMEA Japan Israel and China 10 2457 Americas EMEA Japan and China 11 2462 Americas EMEA Japan and China 12 2467 EMEA and Japan 13 2472 EMEA and Japan 14 2484 Japan only EMEA Europe the Middle East and Africa When set to Auto the device will find th...

Page 32: ...ng will reduce the throughput of the device Authentication Type The device supports two Authentication Types Open system and Shared Key When you select Share Key you need to setup WEP key in Security page See the next section The default setting is Auto The wireless client can associate with the device by using one of the two types Fragment Threshold The fragmentation threshold determines the size...

Page 33: ... Expired Time The client expired time determines time interval the client need to re associate with the device while client is idle The default client expired time is 300 sec MTU Size Maximum Transmission Unit the default MTU size is 1500 The MTU setting controls the maximum Ethernet packet size your PC will send Why a limit Because although larger packets can be constructed and sent your ISP and ...

Page 34: ...devices for the roaming station Block WLAN Relay Isolate Client The device supports isolation function If you are building a public Wireless Network enable this function can provide better security The device will block packets between wireless clients relay All the wireless clients connected to the device can t see each other Transmit Power The default transmit power of this device is 26 65dBm fo...

Page 35: ...n what security function you need WEP Encryption Setting Wired Equivalent Privacy WEP is implemented in this device to prevent unauthorized access to your wireless network The WEP setting must be as same as each client in your wireless network For more secure data transmission you can change encryption type to WEP and click the Set WEP Key button to open the Wireless WEP Key setup page When you de...

Page 36: ...ting The device supports external RADIUS Server that can secure networks against unauthorized access If you use the WEP encryption you can also use the RADIUS server to check the admission of the users By this way every user must use a valid account before accessing the Wireless LAN and requires a RADIUS or other authentication server on the network An example is shown as following You should choo...

Page 37: ...ved via WPA RADIUS Server You need a RADIUS or other authentication server on the network z Enterprise RADIUS When WPA Authentication mode is Enterprise RADIUS you have to add user accounts and the target device to the RADIUS Server In the device you need to specify the IP address Password Shared Secret and Port number of the target RADIUS server z Pre Share Key This mode requires only an access p...

Page 38: ...ions Ad Hoc network type or Access Point Infrastructure network type and you don t need to install any driver Quick start to configure Step 1 In Basic Settings page change the Mode to Client mode And key in the SSID of the AP you want to connect then press Apply Changes button to apply the change Step 2 Check the state of connection in Status web page 1 2 3 4 5 ...

Page 39: ...age select one of the SSIDs you want to connect and then press Connect button to establish the link Step 2 If the linking is established successfully It will show the message Connect successfully Then press OK Step 3 Then you can check the linking information in Status page 1 2 3 4 ...

Page 40: ...ient mode the device supports WEP and WPA Personal Enterprise except WPA2 mixed mode data encryption About the detail data encryption settings please refer the security section MAC Clone for Single Ethernet Client Enable Disable Mac Clone Single Ethernet Client in Wireless Basic Settings page determines whether the Ethernet Client use it s own MAC address or AP Client s MAC address to transmit dat...

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