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ATU-R130 ADSL Ethernet Router User’

s Guide 

20 

Note 

port

. 

 

Follow these steps to change the default LAN IP address or to configure the LAN port as a 
DHCP client

{

 XE "LAN IP address:specifying" 

}

. 

1. 

Log into Configuration Manager, and then click the LAN tab. 

The LAN Configuration page displays, as shown in Figure . 

 

Figure 13. LAN Configuration Page 

 

The LAN Configuration table displays the following settings: 

Setting 

Description 

System Mode 

The preconfigured mode for your device, such as 
Routing or Bridging mode. This setting is not user -
configurable. 

LAN IP  
Address

{

 XE 

"

LAN IP 

address

" 

}

 

The IP address your computers use to identify the 
device’s LAN port.   
Note that the public IP address assigned to you by your 
ISP 

is not

 your LAN IP address. The public IP address 

identifies the WAN (ADSL) port on your ADSL/Ethernet 
router to the Internet. 

LAN Network 
Mask

{

 XE 

"

LAN network 

mask

" 

}

 

The LAN Network mask

{

 XE "LAN network mask" 

}

 

identifies which parts of the LAN IP Address refer to 
your network as a whole and which parts refer 
specifically to nodes on the network.  
Your device is preconfigured with a default network 
mask of 255.255.255.0. 

Use DHCP 

{

 XE "DHCP server:using existing on LAN" 

}

When 

checked, this setting instructs the device to accept LAN 
IP information assigned dynamically from another 
DHCP server already configured on your network. The 
ATU-R130 cannot act as a DHCP server for its own 
LAN port. 

{

 XE "LAN Configuration page" 

}{

 XE "Pages:LAN 

Configuration" 

}

 

 

2. 

Enter a LAN IP address and network mask, or click the DHCP

 Enable

 radio 

button. 

?

 

Entering a fixed address:

 If you are using routing services on you LAN 

such as DHCP and NAT, you will want to assign a fixed LAN IP address and 
mask. This ensures that your LAN computers have a fixed address that they 
use to communicate with the device. 

Содержание atu-r130

Страница 1: ...USER MANUAL ATU R130 ADSL Ethernet Bridge Router ...

Страница 2: ......

Страница 3: ...s no representations or warranties expressed statutory or implied regarding the fitness or merchantability of this product for any particular purpose Further the manufacturer is no liable for any damages including but not limited to lost profits lost saving or other incidental or consequential damages arising out of the use of this product The manufacturer also reserves the right to make any impro...

Страница 4: ... following measures Reorient of relocate the receiving antenna Increase the separation between the equipment and receiver Connect the equipment into an outlet on a circuit different from that to which the receiver is connected Consult the dealer or an experienced radio TV technician for help This unit was tested with shielded cables on the peripheral devices Shielded cables must be used with the u...

Страница 5: ...h bowl kitchen sink or laundry tub in a wet basement or near a swimming pool 2 Avoid using a telephone other then a cordless type during an electrical storm There may be a remote risk of electric shock from lighting 3 Do not use the telephone to report a gas leak in the vicinity of the Leak 4 Use only the power cord and batteries indicated in this manual Do not dispose of batteries in a fire They ...

Страница 6: ...ION AND PC CONFIGURATION 5 Connecting Your ATU R130 5 Configuring Your Computers 6 4 GETTING STARTED WITH THE CONFIGURATION MANAGER 15 Accessing the Configuration Manager 15 Functional Layout 16 Changing Your Login Password 17 Committing Your Changes and Rebooting the Device 17 5 SETTING THE LAN IP ADDRESS 19 Ethernet USB or Both 19 Configuring the LAN IP Address 19 Configuring the USB Port IP Add...

Страница 7: ...nd Statistics 29 Viewing NAT Rules and Rule Statistics 31 Viewing Current NAT Translations 32 Adding NAT Rules 33 8 CONFIGURING IP ROUTES 41 Viewing the IP Routing Table 41 Adding IP Routes 42 9 CONFIGURING THE ATM VCC 44 Viewing Your ATM VC Setup 44 Adding ATM VCCs 45 Modifying ATM VCCs 46 10 CONFIGURING PPP INTERFACES 47 Viewing Your Current PPP Configuration 47 Viewing PPP Interface Details 49 ...

Страница 8: ...53 Adding EOA Interfaces 54 12 CONFIGURING IPOA INTERFACES 56 Viewing Your IPoA Interface Setup 56 Adding IPoA Interfaces 57 13 CONFIGURING BRIDGING 59 Using the Bridging Feature 59 Defining Bridge Interfaces 59 Deleting a Bridge Interface 60 A TROUBLESHOOTING 61 Diagnosing Problem using IP Utilities 63 ...

Страница 9: ...ovide security for your LAN Network configuration through DHCP Server and DHCP Relay Services including IP route and DNS configuration RIP and IP and DSL performance monitoring Configuration program you access via an HTML browser System Requirements XE System requirements In order to use the ATU R130 ADSL Ethernet router you must have the following ADSL service up and running on your telephone lin...

Страница 10: ...k In addition to this document y XE Parts checking for our ATU R130 should arrive with the following One ATU R130 ADSL Ethernet Bridge Router One Power adapter and power cord One USB cable One Ethernet cable straight through type One RJ 11 telephone cord One User Manual One USB driver CD ...

Страница 11: ...wing The WAN port is successfully linked with ADSL line LINK Dim The WAN port is not linked with any ADSL line Glowing The WAN port is receiving transmitting data WAN DATA Dim The WAN port is not receiving transmitting data Glowing The LAN port is successfully connected to a LAN device LINK Dim The LAN port is not connected to any LAN device Glowing The LAN port is receiving transmitting data LAN ...

Страница 12: ...Connects the device to the wall jack for Internet connection RESET Resets the device to default configuration values CONSOLE Using an RS 232 cable to connect to your computer for configuration USB Connects to the USB port on your PC LAN Connects the device to your PC s Ethernet port or to the uplink port on your LAN s hub using the cable provided DC IN Connects to the supplied power converter cabl...

Страница 13: ...e jack the power outlet and your computer or network Figure 4 illustrates the hardware connections Refer to the steps that follow for specific instructions WARNING Before you begin turn the power off for all devices These include your computer s your LAN hub switch if applicable and the ATU R130 Figure 3 Overview of Hardware Connections XE Hardware connections ...

Страница 14: ...let or power strip Step 4 Power up your systems Turn on and boot up your computer s and any LAN devices such as hubs or switches Step 5 Install USB software and connect the USB cable XE USB installing You can attach a single computer to the device using a USB cable The USB port is useful if you have an USB enabled PC that does not have a network interface card for attaching to your Ethernet networ...

Страница 15: ... to the Network dialog box and then click again You may be prompted to install files from your Windows 95 98 installation CD Follow the instructions to install the files 7 Click to restart the PC and complete the TCP IP installation Next configure the PCs to accept IP information assigned by the ATU R130 8 Open the Control Panel window and then click the Network icon 9 Select the network component...

Страница 16: ...n click 10 In the Microsoft TCP IP Properties dialog box click the radio button labeled Obtain an IP address from a DHCP server 11 Click twice to confirm and save your changes and then close the Control Panel Windows 2000 PCs XE IP configuration Windows 2000 First check for the IP protocol and if necessary install it 1 In the Windows task bar click the Start button point to Settings and then click...

Страница 17: ...box displays with a list of currently installed network components If the list includes Internet Protocol TCP IP then the protocol has already been enabled Skip to step 11 4 If Internet Protocol TCP IP does not display as an installed component click 5 In the Select Network Component Type dialog box select Protocol and then click 6 Select Microsoft in the Manufacturers box 7 Select Internet Protoc...

Страница 18: ...of the IP addresses for the computer DNS server and default gateway click the radio buttons that enable you to enter the information manually Note Your PCs must have IP addresses that place them in the same subnet as the ATU R130 s LAN port If you manually assign IP information to all your LAN PCs you can follow the instructions in Chapter 5 to change the LAN port IP address accordingly Configurin...

Страница 19: ...le 2 Copy the USB installation file to a temporary directory on the USB computer 3 In the folder where you copied the files double click on setup exe to start the installation program The Welcome dialog box displays as shown in Figure Figure 4 USB Driver Installation Welcome Screen 4 Click to display the Software License Agreement dialog box as shown in Figure Figure 5 USB Driver Installation Soft...

Страница 20: ...splays to prompt you to attach the USB cable as shown in Figure Figure 7 USB Driver Installation DSL Installer 8 Attach the USB cable to the ATU R130 and to your PC The USB cable provided has a flat connector on one end called Type A and a square connector on the other Type B Connect the flat connector to your PC and the square connector to the ATU R130 A window displays briefly indicating that th...

Страница 21: ... USB configuring IP on PC Now that the USB driver installation is complete you must configure the USB PC so that its IP properties place it on the same subnet as the ATU R130 s USB port There are two ways to do this The ATU R130 is configured to assign an appropriate IP address to the USB PC If you want to use this automatic assignment feature called DHCP server you must configure the USB PC to ac...

Страница 22: ... about accessing and using the Configuration Manager program We strongly recommend that you contact your ISP prior to changing the default configuration Table 1 Default Settings Summary Option Default Setting Explanation Instructions DHCP Dynamic Host Configuration Protocol DHCP server enabled with two pools of addresses For LAN computers 192 168 1 2 through 192 168 1 13 For USB computer 192 168 2...

Страница 23: ...nfiguration Manager XE System requirements for Configuration Manager XE Web browsers compatible versions XE Login to Configuration Manager The Configuration Manager program is preinstalled into memory on the ATU R130 To access the program you need the following A PC or laptop connected to the LAN port on the ATU R130 A web browser installed on the PC XE Web browser version requirements The program...

Страница 24: ...age displays for each task in the task bar The left most task displays by default when you click on a new tab The same task may appear in more than one tab when appropriate For example the Lan Config task displays in both the LAN tab and the Routing tab Commonly used buttons The following buttons are used throughout the application Button Function Stores in temporary system memory any changes you ...

Страница 25: ...sword in the Old Password text box 3 Type the new password in the New Password text box and again in the Confirm New text box The password can be up to eight ASCII characters long When logging in you must type the new password in the same upper and lower case characters that you use here 4 Click 5 Click the Admin tab and then click Commit Reboot in the task bar 6 Click to save your changes to perm...

Страница 26: ...eboot page select the appropriate reboot mode from the drop down menu and then click You can select from the following three options when rebooting Option Description Reboot from Last Configuration Reboots the device using the current settings in permanent memory including any changes you just committed Reboot from Backup Configuration Reboots the device using settings stored in backup memory Thes...

Страница 27: ...llow assume that the device has been preconfigured to operate in Routing mode which uses the IP protocol to determine how to exchange data among your PCs the device and your ISP If your device is configured in Bridging mode its ports do not require IP addresses The operating mode displays at the top of the LAN Configuration page and cannot be changed by the user Configuring the LAN IP Address The ...

Страница 28: ... your ADSL Ethernet router to the Internet LAN Network Mask XE LAN network mask The LAN Network mask XE LAN network mask identifies which parts of the LAN IP Address refer to your network as a whole and which parts refer specifically to nodes on the network Your device is preconfigured with a default network mask of 255 255 255 0 Use DHCP XE DHCP server using existing on LAN When checked this sett...

Страница 29: ...figured IP Address in the program If the configured IP address is not available from the DHCP server the server will distribute another address to the LAN port Even if another number is assigned the same configured IP address will continue to display in this field For a description of how DHCP works see Chapter 6 3 Click If you were using an Ethernet connection for the current session and changed ...

Страница 30: ...1 192 168 1 x x 3 254 USB 192 168 1 2 192 168 1 x 3 Click If you are currently communicating with the device via the USB interface then the connection will be terminated because the IP address that the connection was using has now changed If you are currently using the Ethernet interface a page will display to confirm your change and your connection will remain active 4 If necessary reconfigure yo...

Страница 31: ...ept DHCP information assigned by a DHCP server 1 Open the Windows Control Panel and display the computer s Networking properties Configure the TCP IP properties to Obtain an IP address automatically the actual text may vary depending on your operating system XE DHCP server configuring the device as Next you define the pools of IP addresses you want to make available for distribution to your comput...

Страница 32: ...ional The following table describes each field Field Description Start End IP Addresses Specify the lowest and highest addresses in the pool Mac Address XE MAC addresses in DHCP pools Use this field only if you want to assign a specific IP address to a specific computer that is you are creating an exception to the dynamic assignment of addresses The IP address you specify will be assigned to the c...

Страница 33: ...ent numeric IP addresses Typically these servers are located with your ISP SMTP SWINS optional The IP addresses of devices that perform various services for computers that receive IP addresses from this pool such as the SMTP or Simple Mail Transfer Protocol server which handles e mail traffic Contact your ISP for these addresses 5 Click A confirmation page displays briefly to indicate that the poo...

Страница 34: ...ed addresses When the ATU R130 functions as a DHCP server for your LAN it keeps a record of any addresses it has leased to your computers To view a table of all current IP address assignments display the DHCP Server Configuration page click A page displays similar to that shown in Figure Figure 17 DHCP Server Address Table Page XE DHCP Address Table page XE Pages DHCP Address Table The DHCP Server...

Страница 35: ... an IP address and other information and then forwards that information to the computer First you must configure your PCs to accept DHCP information assigned by a DHCP server 1 Open the Windows Control Panel and display the computer s Networking properties Configure the TCP IP properties to Obtain an IP address automatically the actual text may vary depending on your operating system Next you spec...

Страница 36: ...ram returns to the DHCP Relay Configuration page 6 Follow the instructions in Setting the DHCP Mode on page 28 to set the DHCP mode to DHCP Relay Setting the DHCP Mode XE DHCP setting operating mode You should set the DHCP mode only after you have configured DHCP relay or DHCP server settings See Configuring DHCP Server on page 23 or Configuring DHCP Relay on page 27 for additional instructions Fo...

Страница 37: ...as follows You selected the check box that enables them to receive their IP addresses automatically that is to use a DHCP server or You assigned static IP addresses to your PCs in the range 192 168 1 2 through 192 168 1 13 If your computers are not configured in one of these ways you can either change the IP addresses on your computers to match the NAT setup or delete this NAT rule and add a new o...

Страница 38: ... will no longer be performed if no matching data packets are received after the specified time has elapsed TCP Def Timeout sec For a NAT translation session on data that uses the TCP protocol the translation will no longer be performed if no matching data packets are received after the specified time has elapsed UDP Timeout sec Same as TCP Idle Timeout but for UDP packets ICMP Timeout sec Same as ...

Страница 39: ...he NAT Rule Configuration page displays as shown in Figure Figure 21 NAT Rule Configuration Page XE NAT Rule Configuration page XE Pages NAT Rule Configuration The NAT Rule Configuration table displays a row containing basic information for each rule For a description of these fields refer to the instructions for adding rules pages 33 through 39 From the NAT Rule Configuration page you can click t...

Страница 40: ...T Translations page XE Pages NAT Translations For each current NAT translation session the table contains the following fields Field Description Trans Index The sequential number assigned to the IP session used by this NAT translation session Rule ID The ID of the NAT rule invoked Interface The device interface on which the NAT rule was invoked from the rule definition Protocol The IP protocol use...

Страница 41: ... Packets The number of incoming and outgoing IP packets that have been translated in this translation session In Ports The actual port number corresponding to the LAN computer Out Ports The port number associated with the destination address Translated In Ports The port number to which the LAN computer s actual port number was translated Adding NAT Rules This section explains how to create rules f...

Страница 42: ... rules Once a data packet matches a rule the data is acted upon according to that rule and is not subjected to higher numbered rules 3 From the IFName drop down list select the interface on the device to which this rule applies Typically NAT rules are used for communication between your LAN and the Internet Because the device uses the WAN interface which may be named ppp 0 or eoa 0 to connect your...

Страница 43: ...e rdr rule Allowing external access to a LAN computer XE RDR NAT flavor XE NAT RDR flavor You can create an rdr rule to make a computer on your LAN such as a Web or FTP server available to Internet users without requiring you to obtain a public IP address for that computer The computer s private IP address is translated to your public IP address in all incoming and outgoing data packets Note Witho...

Страница 44: ...orced on more than one of them or all type the starting and ending IP addresses of the range 6 In the Destination Port From and Destination Port To fields enter the port ID or a range that you expect to see on incoming packets destined for the LAN computer for which this rule is being created Incoming traffic that meets this criteria will be redirected to the Local Port number you specify in the n...

Страница 45: ...ress will be translated in sequence to a corresponding address in a range of global addresses which you specify in step 5 You can create a basic rule for each specific address translation to occur The range of addresses should correspond to private addresses already in use on your network whether assigned statically to your PCs or assigned dynamically using DHCP 5 In the Global Address From and Gl...

Страница 46: ...corresponding address in a range of global addresses which you specify in step 5 The address or range of addresses should correspond to a private addresses or addresses already in use on your network These may be assigned statically to your PCs or assigned dynamically using DHCP 5 In the Global Address From and Global Address To fields type the starting and ending address that identify the range o...

Страница 47: ...or XE NAT Rule Add page bimap XE Pages NAT Rule Add bimap Follow these instructions to add a bimap rule see steps 1 4 under The napt rule on page 33 for specific instructions corresponding to steps 1 and 2 below 1 Display the NAT Rule Add Page select BIMAP as the Rule Flavor and enter a Rule ID 2 Select the interface on which this rule will be effective 3 In the Local Address field type the privat...

Страница 48: ...these instructions to add a pass rule see steps 1 4 under The napt rule on page 33 for detailed instructions corresponding to steps 1 and 2 below 1 Display the NAT Rule Add Page select PASS as the Rule Flavor and enter a Rule ID 2 Select the interface on which this rule will be effective 3 In the Local Address From and Local Address To fields type the lowest and highest IP addresses that define th...

Страница 49: ...nection You may need to define routes if your home setup includes two or more networks or subnets if you connect to two or more ISP services or if you connect to a remote corporate LAN XE IP routes manually configuring Viewing the IP Routing Table All IP enabled computers and routers maintain a table of IP addresses that are commonly accessed by their users For each of these destination IP address...

Страница 50: ...puters are on different networks and the router forwards data to a device on another network for further handling Route Origin Displays how the route was defined Dynamic indicates that the route was created automatically or predefined by your ISP or the manufacturer Routes you create are labeled Local Other routes can be created automatically using RIP as described in Chapter 8 or defined remotely...

Страница 51: ... 3 Click 4 On the confirmation page click to return to the IP Route table page The IP Routing Table will now display the new route 5 Click the Admin tab and then click Commit Reboot in the task bar 6 Click to save your changes to permanent memory ...

Страница 52: ... WAN tab and then click ATM VCC in the task bar The ATM VCC Configuration page displays as shown in Figure 34 Figure 33 ATM VCC Configuration Page XE Pages ATM VCC Configuration XE ATM VCC Configuration page The ATM VCC Configuration table displays the following fields contact your ISP to determine these settings Field Description Interface The name of the lower level interface on which this VC op...

Страница 53: ...SP and select the mux type from the drop down list 4 Click 5 On the confirmation page click to return to the ATM VCC Configuration page 6 Click the Admin tab and then click Commit Reboot in the task bar 7 Click to save your changes to permanent memory The new interface should now display in the ATM VCC Configuration table You may need to create a new WAN interface or modify an existing interface s...

Страница 54: ...CC Add page XE Pages ATM VCC Add 2 Enter the new VPI and VCI values select the MUX type or change the maximum number of protocols that the VCC can carry as directed by your ISP You cannot modify the interface type over which an existing VCC operates aal5 0 for example If you want to change the interface type you must delete the existing interface create a new one and select the desired interface t...

Страница 55: ... into Configuration Manager click the WAN tab and then click PPP in the task bar The PPP Configuration page displays as shown in Figure 37 Figure 36 PPP Configuration Page XE PPP Configuration page XE Pages PPP Configuration PPP is configured as a group of software settings associated with the ADSL port Although the device has only one physical ADSL port the ATU R130 can be defined with more than ...

Страница 56: ...e type of PPP protocol used Your ISP may use PPP over Ethernet PPoE or PPP over ATM PPoA WAN IP The IP address currently assigned to your WAN DSL port by your ISP Gateway IP The IP address of the server at your ISP that provides you access to the Internet Default Route Indicates whether the ADSL Ethernet router should use the IP address assigned to this connection as its default route Can be Enabl...

Страница 57: ...s whether the interface has been specified in the system as Enabled A connection will be established for use when the device is turned on or rebooted Disabled The PPP interface cannot currently be used Start On Data The PPP connection will be made only when data is sent to the interface e g when a LAN user attempts to use the Internet Service Name The name of the ISP service you are using with thi...

Страница 58: ...period specified on the PPP Configuration page Auth Failure The ISP could not authorize the connection based on the user name and or password provided PADT recvd The ISP issued a special packet type to terminate the PPP connection VC down The Virtual Circuit between the unit and the ISP is down Internal failure A system software failure occurred DNS The IP address of the DNS server located with yo...

Страница 59: ...PP Interface Add page XE Pages PPP Interface Add 2 Select a PPP interface name from the drop down list and then enter or select data for each field Note You can create multiple PPP interfaces only if you are using the PPoA protocol only one PPP interface can be define if you are using PPoE Check with your ISP which version of the protocol they require The fields are defined in the tables on page 4...

Страница 60: ...ame and your password To modify the other settings you must delete the interface and create a new one To delete a PPP interface display the PPP Configuration page and click in the Action s column for the interface you want to delete You should not delete a PPP interface unless you have received instructions to do so from your ISP Without an appropriately defined PPP interface you will not be able ...

Страница 61: ...oA interfaces are typically public Packets received on a public interface are subject to the most restrictive set of firewall protections defined in the software A private interface connects to your LAN such as the Ethernet interface Packets received on a private interface are subject to a less restrictive set of protections because they originate within the network The term DMZ de militarized zon...

Страница 62: ...ted Default Route Indicates whether the ATU R130 should use the IP address assigned to this interface if any as its default route for your LAN This can be Enable or Disable See Chapter 8 for an explanation of default routes Status A green or red ball will display to indicate that the interface is currently up or down respectively You cannot manually enable or disable the interface a red ball may i...

Страница 63: ...mask you want to assign to the interface This address serves as the public IP address for your entire LAN and is usually assigned by your ISP Or if your ISP will assign this information click the Enable radio button to set up the DHCP service Also specify whether this interface should serve as the default route for your LAN for accessing the Internet 7 Click A confirmation page display to confirm ...

Страница 64: ...following table describes the fields on this page Field Description Interface The name the software uses to identify the IPoA interface IPoA Type Specifies whether or not the IPoA protocol to be used complies with the IEFT RFC 1577 Classical IP and ARP over ATM contact your ISP if unsure Lower interface IPoA interfaces are defined in software and then associated with lower level software and hardw...

Страница 65: ...face whether from a LAN or external source are subject to a level of protection that is in between those for public and private interfaces Config IP Address and Net Mask The IP address and network mask you want to assign to the interface Status A green or red ball will display to indicate that the interface is currently up or down respectively You cannot manually enable or disable the interface a ...

Страница 66: ...lower level interface name over which this protocol is being configured and click Typically an IPoA interface is configured to operate over an aal5 interface 6 Click A confirmation page will display to confirm your changes 7 Click to return to the EOA page and view the new interface in the table 8 Click the Admin tab and then click Commit Reboot in the task bar 9 Click to save your changes to perm...

Страница 67: ... provide router functionality for your LAN Your LAN may include computers that communicate using layer 3 protocols other than the Internet Protocol These include IPX and AppleTalk In this case the device can be configured to act as a bridge for packets that use these protocols while continuing to serve as a router for IP data In both cases you need to specify the device s interfaces as bridge inte...

Страница 68: ...th 0 and USB usb 0 interfaces have been assigned IP addresses by displaying the IP Address Table display the Routing tab and then click IP Address These interfaces will display in the table only if they have been assigned IP addresses You can check whether the eoa 0 interface has been assigned an IP address by displaying the EOA configuration table click the WAN tab and then click EOA If the Confi...

Страница 69: ...ectors at each end of the cable side by side in the same position If the order of their color coded wire pairs is the same it is a straight through type Contact Customer Support if your cable is not the correct type Verify that your cable is sufficient for your network requirements A 100 Mbit sec network 10BaseTx should use cables labeled Cat 5 10Mbit sec cables may tolerate lower quality cables I...

Страница 70: ...ce using a pointed object such as a pen tip Then type the default User ID and password shown above WARNING Resetting the device removes any custom settings and returns all settings to their default values Cannot access the Configuration Manager program from your browser Use the ping utility discussed in the following section to check whether your PC can communicate with the ATU R130 s LAN IP addre...

Страница 71: ...1 or another address you assigned You can also test whether access to the Internet is working by typing an external address such as that for www yahoo com 216 115 108 243 If you do not know the IP address of a particular Internet location you can use the nslookup command as explained in the following section From most other IP enabled operating systems you can execute the same command at a command...

Страница 72: ...up Utility There may be several addresses associated with an Internet name This is common for web sites that receive heavy traffic they use multiple redundant servers to carry the same information To exit from the nslookup utility type exit and press Enter at the command prompt ...

Страница 73: ......

Страница 74: ...ries CTC Union Technologies Co Ltd Far Eastern Vienna Technology Center Neihu Technology Park 8F No 60 Zhouzi Street Neihu Taipei Taiwan Phone 886 2 2659 1021 Fax 886 2 2799 1355 E mail info ctcu com http www ctcu com ...

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