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Chapter 2: WEB Configuration 

 

40

Security 

Security secures or scrambles messages traveling through the air between your wireless PCs and the 
gateway, so they can’t be observed by others. The following minimum security setting changes to factory 
defaults are recommended. See the 802.11b/g Primary Network Web Page discussion below for details. 

Data Encryption – Set to WEP (64-bit) 

PassPhrase – Use this feature to generate security keys 

1.

 

802.11/ Radio 

To set the basic configuration for the wireless features, please click 

Radio

 item from the 

Wireless

 menu. 

 

Fig. 30 

z

 

Interface 

: The wireless radio in your gateway can be completely de-activated by changing 

Interface

 to 

Disabled. Click the 

Apply

 button to save your settings. If you want to re-activate the disabled wireless radio 

in your gateway, need to contact cable operator. 

z

 

Wireless MAC Address

: The MAC address for this wireless device will be displayed in this field 

automatically.  

z

 

New Channel

: There are 13 channels that you can choose. Choose the one that is suitable for this device. 

z

 

Current Channel

: The channel that you choose will be displayed in this field. 

Restore Wireless defaults:

 To recover to the default settings, press this button to retrieve the settings and click 

Apply. 

 

                                                                                           

Illustrations contained in this document are for representation only.

 

 

Содержание TCW750-4

Страница 1: ...liable to contain parts that are necessary in order for the system to work properly but which can become a health and environmental hazard if they are not handled or disposed of in the proper way Consequently please do not throw out your inoperative appliance with the household waste If you are the owner of the appliance you must deposit it at the appropriate local collection point or leave it wit...

Страница 2: ...etail outlet please read the following Product Information Keep your sales receipt to obtain warranty parts and service and for proof of purchase Attach it here and record the serial and model numbers in case you need them The numbers are located on the back of the product Model No ____________________________Serial No ________________________________ Purchase Date ________________________Dealer A...

Страница 3: ...among the Devices 7 What the Modem Does 7 What the Modem Needs to Do Its Job 7 Contact Your Local Cable Company 7 Connecting the Wireless Gateway to a Single Computer 9 Attaching the Cable TV Wire to the Wireless Gateway 9 Important Connection Information 10 Ethernet Connection to a Computer 10 Connecting More Than A Computer to the Wireless Gateway 11 Turning on the Wireless Gateway 12 Chapter 2 ...

Страница 4: ...vanced 26 1 Options 26 2 IP Filtering 27 3 MAC Filtering 28 4 Port Filtering 29 5 Forwarding 30 6 Port Triggers 31 7 DMZ Host 32 8 RIP Routing Information Protocol Setup 33 Firewall 34 1 Web Content Filtering 34 2 TOD Filtering 35 3 Local Log and Remote Log 36 Parental Control 38 1 Basic 38 Illustrations contained in this document are for representation only ...

Страница 5: ...Bridging 52 6 802 11 QoS WMM Settings 53 Chapter 3 Networking 55 Communications 55 Type of Communication 55 Cable Modem CM Section 56 Networking Section 56 Three Networking Modes 57 Cable Modem CM Mode 57 Residential Gateway RG Mode 59 CableHome CH Mode 60 MAC and IP Addresses Summary 62 Chapter 4 Additional Information 63 Frequently Asked Questions 63 Service Information 67 Glossary 68 ...

Страница 6: ...ity z SNMP network management support z Remote operating firmware downloading z Support Web pages and private DHCP server for status monitoring z Clear LED display z Plug and Play What s on the CD ROM Insert the Wireless Gateway CD ROM into your CD ROM drive to view troubleshooting tips the internal diagnostics and other valuable information CD ROM Contents z Electronic copy of this user s guide i...

Страница 7: ... built in preferred 10BaseT or 100BaseT 10BaseT or 100BaseT Ethernet An Ethernet card makes it possible for your computer to pass data to and from the internet You must have an Ethernet card and software drivers installed in your computer You will also need a standard Ethernet cable to connect the Ethernet card to your Wireless Gateway Software A TCP IP network protocol for each machine Microsoft ...

Страница 8: ...unit ensure that it is within reach of the power outlet You will need 2 suitable screws which screw diameter would be 4 4 mm to wall mount the Cable Modem To do this 1 Ensure that the wall you use is smooth flat dry and sturdy and use the 4 screw holes which are 101 6 mm apart from each other 2 Fix the screws into wall leaving their heads 3 mm 0 12 inch clear of the wall surface 3 Remove any conne...

Страница 9: ...e ON ON ON Following system initialization complete to before Boot up Operation ON 1 second X X X X X DS scanning ON FLASH OFF OFF X X X X X During DS scanning and acquiring SYNC ON ON FLASH OFF X X X X X From SYNC completed receiving UCD to ranging completed During DHCP configuration file download registration and Baseline Privacy initialization DHCP status 1 second ON and 1 second OFF ON ON ON F...

Страница 10: ...OFF OFF No Ethernet Link ON ON ON ON Ethernet Link ON X X X FLASH FLASH FLASH FLASH X TX RX Ethernet Traffic OFF No Wireless Link ON Wireless Link CPE Operation ON X X X X X X X FLASH TX RX Wireless Traffic SW Download Operati on ON FLASH FLASH ON X X X X X A software download and while updating the FLASH memory ...

Страница 11: ... 6 Rear Panel z 12VDC Power connector z 4 ETHERNET Ethernet 10 100BaseT RJ 45 connector z RESET Reset CM z CABLE F Connector Flank Panel z WPS WiFi Protected Setup Illustrations contained in this document are for representation only ...

Страница 12: ...OCSIS compliant headend equipment The data security secures upstream and downstream communications What the Modem Needs to Do Its Job The Right Cable Company Make sure your local cable company provides data services that use cable TV industry standard Euro DOCSIS compliant technology Contact Your Local Cable Company You will need to contact your cable company to establish an Internet account befor...

Страница 13: ...rvice Note It is important to supply power to the modem at all times Keeping your modem plugged in will keep it connected to the Internet This means that it will always be ready whenever you need Important Information Your cable company should always be consulted before installing a new cable outlet Do not attempt any rewiring without contacting your cable company first Illustrations contained in ...

Страница 14: ...ion Attaching the Cable TV Wire to the Wireless Gateway 1 Locate the Cable TV wire You may find it one of three ways a Connected directly to a TV a Cable TV converter box or VCR The line will be connected to the jack which should be labeled either IN CABLE IN CATV CATV IN etc b Connected to a wall mounted cable outlet c Coming out from under a baseboard heater or other location See Figure 1 for th...

Страница 15: ... POWER DC ADAPTER jack on the Cable Wireless Gateway and plug the power supply into a DC outlet Note Use only the power supply that accompanied this unit Using other adapters may damage the unit 3 Connect one end of the Ethernet cable straight wired see below to the Ethernet port on the back of your computer and the other end to the ETHERNET port on the Wireless Gateway Make sure that the Ethernet...

Страница 16: ... to connect more than a computer to TCW750 4 simply connect the computers to the Ethernet ports on the rear panel Fig 3 Multiple PC Connection Note You may need to check with your service provider in order to connect multiple computers Illustrations contained in this document are for representation only ...

Страница 17: ...fferent pattern of flashing lights on the front of the modem Note All indicators flash once before the initialization sequence If all of the lights are flashing sequentially it means the Wireless Gateway is automatically updating its system software Please wait for the lights to stop flashing You cannot use your modem during this time Do not remove the power supply or reset the Wireless Gateway du...

Страница 18: ...b Configuration The Wireless Gateway offers local management capability through a built in HTTP server and a number of diagnostic and configuration web pages You can configure the settings on the web page and apply them to the device Once your host PC is properly configured please proceed as follows 1 Start your web browser and type the private IP address of the Wireless Gateway on the URL field 1...

Страница 19: ...ining configuration or status information For easy navigation the pages are organized in groups with group names main menu individual page names within each group are provided in the sidebar To navigate to a page click the group hyperlink at the top then the page title on the sidebar Your cable company may not support the reporting of some items of information listed on your gateway s internal web...

Страница 20: ...last time being powered up and some key information the Cable Modem received during the initialization process with your cable company If Network Access shows Allowed then your cable company has configured your gateway to have Internet connectivity If not you may not have Internet access and should contact your cable company to resolve this Fig 6 Illustrations contained in this document are for re...

Страница 21: ...tion status containing startup procedures downstream and upstream status CM online information and so on The information can be useful to your cable company s support technician if you re having problems Fig 7 Illustrations contained in this document are for representation only ...

Страница 22: ... sensitive In addition this page can be used to restore the gateway to its original factory settings Use this with caution as all the settings you have made will be lost To perform this reset set Restore Factory Defaults to Yes and click Apply This has the same effect as a factory reset using the rear panel reset switch where you hold on the switch for 15 seconds then release it Fig 8 Illustration...

Страница 23: ...s Start Test the Result will be displayed in the lower part of the window Press Abort Test to stop and Clear Results to clear the result contents Note Firewalls may cause pings to fail but still provide you TCP IP access to selected devices behind them Keep this in mind when pinging a device that may be behind a firewall Ping is most useful to verify connectivity with PCs have no firewall such as ...

Страница 24: ...r 2 WEB Configuration 19 5 Event Log This page displays the contents of the SNMP event log Press Clear Log button to clear the logs Fig 10 Illustrations contained in this document are for representation only ...

Страница 25: ... time startup enter known downstream frequency and or upstream channel ID information here Then click Apply and Reboot button to start scanning the cable network beginning with the values supplied here Fig 11 Illustrations contained in this document are for representation only ...

Страница 26: ...Configuration 21 7 Backup Restore This page allows you to save your current settings locally on your PC or restore settings previously saved Fig 12 Illustrations contained in this document are for representation only ...

Страница 27: ...r your gateway and your gateway s DHCP server provides IP addresses starting at the address you set in IP Address on the LAN page to your PCs A DHCP server leases an IP address with an expiration time To change the lowest IP address that your gateway will issue to your PCs enter it into the IPAddress box and then click Apply Fig 13 Illustrations contained in this document are for representation on...

Страница 28: ...mple you can release and renew the WAN lease by pressing the buttons You can enter a spoofed MAC address that causes your gateway networking stack to use that MAC address when communicating instead of the usual WAN MAC address e g if the MAC address is 00 11 e3 df 66 95 this spoofed MAC address could be 00 11 e3 df 66 97 or any desired MAC address Fig 14 Illustrations contained in this document ar...

Страница 29: ...tem time You can cancel an IP address lease by selecting it in the DHCP Client Lease Info list and then clicking the Force Available button If you do so you may have to perform a DHCP Renew on that PC so that it can obtain a new lease Fig 15 Illustrations contained in this document are for representation only ...

Страница 30: ...tting z Username The username that you registered with your DDNS provider z Password The password that you registered with your DDNS provider z Host Name The domain name or host name that is registered with your DDNS provider z Status It shows the DDNS service status whether it is enabled or disabled Click Apply to save the changes Illustrations contained in this document are for representation on...

Страница 31: ...onfig Management makes the configuration web pages in your gateway accessible from the WAN side Note that page access is limited to only those who know the gateway access password When accessing your gateway from a remote location your must use HTTP port 8080 and the WAN IP address of the gateway For example if the WAN IP address is 157 254 5 7 you would navigate to http 157 254 5 7 8080 to reach ...

Страница 32: ...rough it A NAT router with inbuilt SIP ALG can re write information within the SIP messages SIP headers and SDP body making possible signaling and audio traffic between LAN client and outside SIP endpoint 2 IP Filtering This page enables you to enter the IP address ranges of PCs on your LAN that you don t want to have outbound access to the WAN These PCs can still communicate with each other on yo...

Страница 33: ...of specific PCs on your LAN that you wish to NOT have outbound access to the WAN As with IP filtering these PCs can still communicate with each other through the gateway but packets they send to WAN addresses are blocked Fig 19 Illustrations contained in this document are for representation only ...

Страница 34: ...d to these destination ports will be blocked For example you could block access to worldwide web browsing http port 80 but still allow email service SMTP port 25 and POP 3 port 110 To enable port filtering set Start Port and End Port for each range and click Apply To block only one port set both Start and End ports the same Fig 20 Illustrations contained in this document are for representation onl...

Страница 35: ...ou specify This page allows you to specify up to 10 such rules For example to specify that outsiders should have access to an FTP server you have running at 192 168 0 5 create a rule with that address and Start Port 20 and End Port 21 FTP port ranges and Protocol TCP FTP runs over TCP and the other transport protocol UDP and click Apply This will cause inbound packets that match to be forwarded to...

Страница 36: ...your game will be sending to and entering into Target Range the range of destination ports the other player on the WAN side will be sending to ports your PC s game receives on Application programs like games publish this information in user manuals Later each time you play the game the gateway automatically creates the forwarding rule necessary This rule is valid until 10 minutes after it sees gam...

Страница 37: ...ide for all ports For example if you put an HTTP server on this machine anyone will be able to access that HTTP server by using your gateway IP address as the destination A setting of 0 indicates NO DMZ PC Host is another Internet term for a PC connected to the Internet Fig 23 Illustrations contained in this document are for representation only ...

Страница 38: ...ocal area network is installed The RIP protocol provides the gateway a means to advertise available IP routes to these LANs to your cable operator so packets can be routed properly in this situation Your cable operator will advise you during installation if any setting changes are required here Fig 24 Illustrations contained in this document are for representation only ...

Страница 39: ...arded or blocked You can activate settings by checking them and clicking Apply The web related filtering features you can activate from the Web Content Filter page include Filter Proxy Filter Cookies Filter Java Applets Filter ActiveX Filter Popup Windows and Firewall Protection If you want the gateway to exclude your selected filters to certain computers on your LAN enter their MAC addresses in t...

Страница 40: ...ic LAN side PCs from accessing the Internet but only at specific days and times Specify a PC by its hardware MAC address and then use the tools to specify blocking time Finally click the Apply button to save your settings Fig 26 Illustrations contained in this document are for representation only ...

Страница 41: ...it can direct the email to it Enable Email Alerts has the gateway forward email notices when Firewall protection events occur Click E mail Log to immediately send the email log Click Clear Log to clear the table of entries for a fresh start The log of these events is also visible on the screen For each blocking event type that has taken place since the table was last cleared the table shows Descri...

Страница 42: ...the IP address where a SysLog server is located and select different types of firewall events that may occur Then each time such an event occurs notification is automatically sent to this log server Fig 28 Illustrations contained in this document are for representation only ...

Страница 43: ...you want to have forwarded or blocked You can activate settings by checking them and clicking Apply Here are some of your choices on the Parental Control page Activate Keyword Blocking and specify some keywords in the Keyword List to cause blocking of web pages on the WAN side with the specified keyword in the content Activate Domain Blocking and specify some Domain Names e g disney com in the Dom...

Страница 44: ...ireless communications and provide optimum performance Performance Because your wireless communication travels through the air the factory default wireless channel setting may not provide optimum performance in your home if you or your neighbors have other interfering 2 4GHz devices such as cordless phones If your wireless PC is experiencing very sluggish or dramatically slower communication compa...

Страница 45: ...Fig 30 z Interface The wireless radio in your gateway can be completely de activated by changing Interface to Disabled Click the Apply button to save your settings If you want to re activate the disabled wireless radio in your gateway need to contact cable operator z Wireless MAC Address The MAC address for this wireless device will be displayed in this field automatically z New Channel There are ...

Страница 46: ... between 0x20 and 0x7e Thom_Dxxxxxx Network Type Select Closed to hide the network from active scans Select Open to reveal the network to active scans Open Closed Open New Channel Select a particular channel on which to operate 1 13 1 6 11 Illustrations contained in this document are for representation only Interface Enable or disable the wireless interface Enabled Disabled Enabled Table1 Basic Se...

Страница 47: ...p to 32 characters long Closed Network This control is used to hide or reveal your network name SSID to any remote wireless equipped PC in the area that may be scanning WiFi channels to find available WiFi networks The gateway WiFi radio frequently transmits a beacon signal which can contain this network name SSID If you set Closed Network to Enable your SSID is included in that beacon and is ther...

Страница 48: ...ion must be set to use the128 Bit Encryption and have the same Key value too Otherwise it will not be able to decrypt the data Note You need to connect one end of the Ethernet cable to the Ethernet port on the back of your computer and the other end to the ETHERNET port on the Wireless Gateway z If you select WEP 64 bit or 128 bit you can adjust the following settings And by selecting Disable you ...

Страница 49: ... used between IAS and the specific RADIUS client to verify identity Both IAS and the RADIUS client must be use the same RADIUS Key for successful communication to occur Enter the RADIUS Key Fig 32 WPA WPA2 For the WPA WPA2 network Authentication the settings that you can adjust including WPA WPA2 Encryption RADIUS Server RADIUS Port RADIUS Key Group Key Rotation Interval and WPA WPA2 Re auth Inter...

Страница 50: ...cond With increasing rekey interval user bandwidth requirement is reduced z WPA WPA2 Re auth Interval When a wireless client has associated with the Wireless Gateway for a period of time longer than the setting here it would be disconnected and the authentication will be executed again The default value is 3600 you may modify it Fig 33 Illustrations contained in this document are for representatio...

Страница 51: ...lease refer to the WPA WPA2 part Fig 34 Automatic Security Configuration Fig 35 WiFi Protected Setup WPS is an easy and secure way of configuring and connecting your WiFi access point In your case the TCW750 4 is the Access Point AP and Your PC or Wifi Device is called the STA When configuring your Wifi Network via WPS Messages are exchanged between the STA and AP in order to configure the Securit...

Страница 52: ...re are two methods Push Button and PIN Select the method you want But the default selection will be PIN If you select Push Button then the WPS Add Client option will appear as shown below Fig 36 And then if you click Add button then WPS Setup AP page will appear as shown in Fig 36 Fig 37 And WPS Configure Status will be In progress after establishing the connection the WPS Configure Status will be...

Страница 53: ...the PIN enter 4 8 digits PIN of the device you wish to configure After entering the pin click Add button then the WPS Setup AP page will appear as shown in Fig 38 Fig 40 And WPS Configure Status will be In progress after establishing the connection the WPS Configure Status will be Success as shown below After successful connection the client will get IP address from AP and then internet will be ac...

Страница 54: ...work select Allow to permit only the clients on the list to access the cable modem or choose Deny to prevent the clients on the list to access this device MAC Address Your Gateway identifies wireless PCs by their WiFi MAC Address This address consists of a string of 6 pairs of numbers 0 9 and letters A F such as 00 90 4B F0 FF 50 It is usually printed on the WiFi card of the device e g the PCMCIA ...

Страница 55: ...stations when multicast frames that have been buffered at the Wireless Gateway will be delivered and how often that delivery occurs Value range 1 255 Fragmentation Threshold Set the number of the fragmenting frames to make the data to be delivered without errors induced by the interference Frames longer than the value you set here are fragmented before the initial transmission into fragments no lo...

Страница 56: ...put speeds of each client on the network can improve by up to 27 in 802 11g only networks and up to 75 in mixed networks comprised of 802 11g and 802 11b standard equipment Rate It decides the speed of data transmission There are several rates provided here for you to choose Choose any one of it according to your needs by using the drop down menu Output Power This setting decides the output power ...

Страница 57: ... mode that allows the gateway to communicate with other extender wireless access points either exclusively or mixed with communications to local PCs Use this page to designate the Remote Bridges the gateway is allowed to communicate with and to select the Wireless Bridging mode Fig 44 z Wireless Bridging Choose Disabled to shutdown this function select Enabled to turn on the function of WDS z Remo...

Страница 58: ...dia transmission z Enable WMM No Acknowledgement This field allows you to enable WMM No Ackonwledgement z Power Save Support This field allows you to enable WMM Power Save Support Fig 45 EDCAAP Parameters The parameters for Access Point AP of EDCA enhanced distributed channel access EDCA STA Parameters The parameters for WIFI station of EDCA CWmin This attribute shall specify the value of the mini...

Страница 59: ...QAP for a particular AC shall sense the medium idle either before transmitting or executing a backoff TXOP b Limit usec TXOP a g Limit usec This attribute shall specify the maximum number of microseconds of an EDCA TXOP for a given AC at the QAP Discard Oldest First If buffer full and parameter is TRUE then discard oldest first 4 AC s Access Category are defined AC_BK background AC_BE best effort ...

Страница 60: ...ewall Figure 2 illustrates this concept with the cable modem CM functionality on the left and networking functionality on the right In this figure the numbered arrows represent communication based on source and destination as follows Type of Communication 1 Communication between the Internet and your PCs Example The packets created by your request for a page stored at a web site and the contents o...

Страница 61: ...can communicate directly with the CM itself Networking Section The Networking section of your gateway also uses TCP IP Transmission Control Protocol Internet Protocol for the PCs you connected on the LAN side TCP IP is a networking protocol that provides communication across interconnected networks between computers with diverse hardware architectures and various operating systems TCP IP requires ...

Страница 62: ...y a file transfer program are all examples of applications Inside the packet these applications are designated by their port number Port 80 the standard HTTP port is an example of a port number The Networking section of the router performs many elegant functions by recognizing different packet types based upon their contents such as source and destination MAC address IP address and ports Three Net...

Страница 63: ...uses a MAC address of MAC label 1 the MAC label is found on the bottom of the unit E g if the MAC address is 00 90 64 12 B1 91 this MAC address would be 00 90 64 12 B1 92 With CM Mode your cable company must provide one IP address for the CM section plus one for each PC you connect from their pool of available addresses Your cable company may have you or your installer manually enter these assigne...

Страница 64: ...In this mode three IP stacks are active IP Stack 1 for use by the cable company to communicate with the Cable Modem section only This stack receives its IP address from the cable company during CM initialization It uses the MAC address printed on the label attached to the Wireless Cable Gateway Illustrations contained in this document are for representation only ...

Страница 65: ...address would be 00 90 64 12 B1 93 IP Stack 5 for use by you to locally i e from somewhere on the LAN side in your home communicate with the Cable Modem and Networking sections to access the internal web page diagnostics and configuration This stack is also used by the gateway s networking section to route packets between the gateway s Networking section and your PCs This stack uses a fixed IP add...

Страница 66: ...e company to deliver packets between the Internet and the Wireless Cable Gateway s Networking section so they can be routed to from your PCs This stack requires an IP address assigned by the cable company from their pool of available addresses Your cable company may have you or your installer manually enter these assigned addresses into your gateway or use a DHCP Server to communicate them or use ...

Страница 67: ...Name Purpose Mode MAC Address IP Address IP Stack 1 CM WAN access all Modes local management CM Mode per label on CM assigned by cable company during initialization IP Stack 2 IP Stack 3 IP Stack 4 only CM label 1 fixed at 192 168 100 1 IP Stack 5 CableHome remote management CH Mode only end user remote management LAN WAN access RG Mode only CM label 2 CM label 3 assigned by cable company assigned...

Страница 68: ...et and talk to my friends through the Wireless Gateway at the same time A Absolutely Q What do you mean by Broadband A Simply put it means you ll be getting information through a bigger pipe with more bandwidth than a standard phone line can offer A wider broader band means more information more quickly Q What is Euro DOCSIS and what does it mean A Data over Cable Service Interface Specifications ...

Страница 69: ...seful data can be sent during a given amount of time Monthly subscription fee applies Additional equipment required Contact your cable company and ISP for any restrictions or additional fees Illustrations contained in this document are for representation only ...

Страница 70: ... If the modem is in Initialization Mode the INTERNET light will be flashing Call your Cable Company if it has not completed this 5 step process within 30 minutes and note which step it is getting stuck on z The modem should work with a standard RG 6 coaxial cable but if you re using a cable other than the one your Cable Company recommends or if the terminal connections are loose it may not work Ch...

Страница 71: ...cy energy and if not installed and used in accordance with the instructions may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a particular installation If this equipment does cause harmful interference to radio or television reception which can be determined by turning the equipment off and on the user is encouraged to try and ...

Страница 72: ...able Modem may be provided through your cable provider or its authorized representative For information on 1 Ordering Service 2 Obtaining Customer Support or 3 Additional Service Information please contact your cable company If you purchased your Wireless Gateway from a retailer see the enclosed warranty card Illustrations contained in this document are for representation only ...

Страница 73: ...r Cable Modems and associated equipment F Connector A type of coaxial connector labeled CABLE IN on the rear of the Wireless Gateway that connects the modem to the cable system HTTP HyperText Transfer Protocol Invisible to the user HTTP is used by servers and clients to communicate and display information on a client browser Hub A device used to connect multiple computers to the Wireless Gateway I...

Страница 74: ...etworks between computers with diverse hardware architectures and various operating systems TFTP Trivial File Transfer Protocol the system by which the Media Terminal Adapter s configuration data file is downloaded Xpress Technology One of the popular performance enhancing WiFi technologies designed to improve wireless network efficiency and boost throughput It is more efficient in mixed environme...

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