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Advanced Features 

Virtual Servers 

This feature, sometimes called 

Port Forwarding

, allows you to make Servers on your LAN accessible to Internet users. Normally, 

Internet users would not be able to access a server on your LAN because: 

•

 

Your Server does not have a valid external IP Address. 

•

 

Attempts to connect to devices on your LAN are blocked by the firewall in this device. 

The "Virtual Server" feature solves these problems and allows Internet users to connect to your servers, as illustrated below. 

 

Figure 36: Virtual Servers 

IP Address seen by Internet Users 

Note that, in this illustration, both Internet users are connecting to the same IP Address, but using different protocols. 

To Internet users, all virtual Servers on your LAN have the same IP Address. This IP Address is allocated by your 
ISP. 

This address should be static, rather than dynamic, to make it easier for Internet users to connect to your Servers. 

However, you can use the 

DDNS (Dynamic DNS)

 feature to allow users to connect to your Virtual Servers using a URL, instead of an 

IP Address. 

Virtual Servers Screen 

The 

Virtual Servers

 screen is reached by the 

Virtual Servers

 link on the 

Advanced

 screen. An example screen is shown below.  

59 

Содержание TWG-BRF114

Страница 1: ...i...

Страница 2: ...ation 33 Status Screen 33 Connection Details Fixed Dynamic IP Address 34 Connection Status PPPoE 36 Connection Status PPTP 38 Connection Status L2TP 39 Connection Status Telstra Big Pond 40 Connection...

Страница 3: ...pyright 2005 All Rights Reserved Document Version 1 0 April 2005 All trademarks and trade names are the properties of their respective owners Chapter 1 Introduction This Chapter provides an overview o...

Страница 4: ...mic IP Address On the Internet WAN port connection the Broadband Router supports both Dynamic IP Address IP Address is allocated on connection and Fixed IP Address Advanced Internet Functions Communic...

Страница 5: ...ternet UPnP Support UPnP Universal Plug and Play allows automatic discovery and configuration of the Broadband Router UPnP is by supported by Windows ME XP or later Security Features Password protecte...

Страница 6: ...on the corresponding LAN hub port Flashing Data is being transmitted or received via the corres ponding LAN hub port 100 On Corresponding LAN hub port is using 100BaseT Off No active connection on th...

Страница 7: ...ed or received via the WAN port 100 On Corresponding WAN hub port is using 100BaseT Off No connection to the broadband modem on the WAN in ternet port Flashing Data is being transmitted or received vi...

Страница 8: ...nnect the DSL or Cable Modem here If your modem came with a cable use the supplied cable Otherwise use a standard LAN cable 10 100 1000BaseT LAN connections Use standard LAN cables RJ45 connectors to...

Страница 9: ...ically function as an Uplink port when required 3 Connect WAN Cable Connect the DSL or Cable modem to the WAN port on the Broadband Router Use the cable supplied with your DSL Cable mod em If no cable...

Страница 10: ...functions of the Broadband Router you wish to use Use the table below to locate detailed instructions for the required functions To Do this Refer to Configure PCs on your LAN Chapter 4 PC Configurati...

Страница 11: ...Windows system supports UPnP an icon for the Broadband Router will appear in the system tray notifying you that a new network device has been found and offering to create a new desktop shortcut to th...

Страница 12: ...connection is not working or your PC s IP address is not compatible with the Broadband Router s IP Address See next item If your PC is using a fixed IP Address its IP Address must be within the range...

Страница 13: ...n the Cable Modem screen use the Clone MAC address button to copy the MAC address from your PC to the Broadband Rou ter Common Connection Types Cable Modems Type Details ISP Data required Dynamic IP A...

Страница 14: ...e g Broadband Wireless Type Details ISP Data required Dynamic IP Address Your IP Address is allocated automatically when you con nect to you ISP None Static Fixed IP Address Your ISP allocates a perma...

Страница 15: ...ata Input Use the menu bar on the left of the screen and the Back button on your Browser for navigation Changing to another screen without clicking Save does NOT save any changes you may have made You...

Страница 16: ...up The default and recommended value is Enabled If you are already using a DHCP Server this setting must be Disabled and the existing DHCP server must be re configured to treat the Broadband Router a...

Страница 17: ...e Broadband Router s DHCP Server function Set the range of IP Addresses allocated to PCs by the DHCP Server function You can assign Fixed IP Addresses to some devices while using DHCP provided that th...

Страница 18: ...ssword has been set this dialog will not appear Figure 8 Password Dialog Leave the User Name blank Enter the password for the Broadband Router as set on the Password screen above Chapter 4 PC Configur...

Страница 19: ...t the Broadband Router will act as a DHCP Server automatically providing a suitable IP Address and related informa tion to each PC when the PC boots For all non Server versions of Windows the default...

Страница 20: ...P select the radio button Obtain an IP Address automatically This is the default Windows setting Using this is recom mended By default the Broadband Router will act as a DHCP Server Restart your PC to...

Страница 21: ...Win 95 98 On the DNS Configuration tab ensure Enable DNS is selected If the DNS Server Search Order list is empty enter the DNS address provided by your ISP in the fields beside the Add button then cl...

Страница 22: ...king TCP IP Settings Windows NT4 0 1 Select Control Panel Network and on the Protocols tab select the TCP IP protocol as shown below Figure 13 Windows NT4 0 TCP IP 2 Click the Properties button to see...

Страница 23: ...tart your PC to ensure it obtains an IP Address from the Broadband Router Specify an IP Address If your PC is already configured check with your network administrator before making the following chang...

Страница 24: ...Windows NT4 0 Add Gateway 2 The DNS should be set to the address provided by your ISP as follows Click the DNS tab On the DNS screen shown below click the Add button under DNS Service Search Order and...

Страница 25: ...PC Configuration Figure 16 Windows NT4 0 DNS 23...

Страница 26: ...al up Connection 2 Right click the Local Area Connection icon and select Properties You should see a screen like the following Figure 17 Network Configuration Win 2000 3 Select the TCP IP protocol for...

Страница 27: ...t obtains an IP Address from the Broadband Router Using a fixed IP Address Use the following IP Address If your PC is already configured check with your network administrator before making the followi...

Страница 28: ...Connection 2 Right click the Local Area Connection and choose Properties You should see a screen like the following Figure 19 Network Configuration Windows XP 3 Select the TCP IP protocol for your ne...

Страница 29: ...s an IP Address from the Broadband Router Using a fixed IP Address Use the following IP Address If your PC is already configured check with your network administrator before making the following chang...

Страница 30: ...Network Connections window displays right click on the correct Local Area Connection then click Properties 4 Pop up window displays that states Windows needs your permission to continue Click Continu...

Страница 31: ...PC Configuration 29...

Страница 32: ...he Setup button 4 Cancel the pop up Location Information screen 5 Click Next on the New Connection Wizard screen 6 Select Connect to the Internet and click Next 7 Select Set up my connection manually...

Страница 33: ...PC Configuration Before clicking Sign On always ensure that you are using the Broadband Router location 31...

Страница 34: ...any changes Fixed IP Address By default most Unix installations use a fixed IP Address If you wish to continue using a fixed IP Address make the following changes to your configuration Set your Defau...

Страница 35: ...ich use non standard connections or port numbers may be blocked by the Broadband Router s built in firewall You can define such applications as Special Applications to allow them to function normally...

Страница 36: ...e IP addresses allocated to them use the PC Database option on the Advanced menu System Device Name This displays the current name of the Broadband Router Firmware Version The current version of the f...

Страница 37: ...ing as a DHCP client If Enabled the Remaining lease time field indicates when the IP Address allocated by the DHCP Server will expire The lease is automatically renewed on expiry use the Renew button...

Страница 38: ...above PPPoE Link Status This indicates whether or not the connection is currently estab lished If the connection does not exist the Connect button can be used to establish a connection If the connecti...

Страница 39: ...iod specified in the Idle Time out field The connection will now be termi nated Disconnecting The current connection is being terminated due to either the Idle Time out above or Disconnect button bein...

Страница 40: ...Provider PPTP Status This indicates whether or not the connection is currently established If the connection does not exist the Connect button can be used to establish a connection If the connection...

Страница 41: ...atus This indicates whether or not the connection is currently established If the connection does not exist the Connect button can be used to establish a connection If the connection currently exists...

Страница 42: ...n does not exist the Connect button can be used to establish a connection If the connection currently exists the Disconnect button can be used to break the connection Normally it is not necessary to u...

Страница 43: ...Operation and Status Refresh Update the data on screen 41...

Страница 44: ...ted with the IP Address above DNS IP Address The IP Address of the Domain Name Server which is currently used DHCP Client This will show Enabled or Disabled depending on whether or not this device is...

Страница 45: ...ication Applications Special Applications DMZ Multi DMZ URL Filter Schedule User Groups Virtual Servers WAN Port Access Control This feature is accessed by the Access Control link on the Advanced menu...

Страница 46: ...Broadband Router User Guide Restrictions are imposed by blocking Services or types of connections All common Services are pre defined If required you can also define your own Services 44...

Страница 47: ...create the most restrictive group Block selected Services You can select which Services are to block Use this to gain fine control over the Internet access for a group Block by Schedule If Internet ac...

Страница 48: ...data on screen Cancel Reverse any changes made since the last Save View Log Click this to open a sub window where you can view the Access Control log This log shows attempted Internet accesses which h...

Страница 49: ...service Start Port For TCP and UDP Services enter the beginning of the range of port numbers used by the service If the service uses a single port number enter it in both the Start and Finish fields...

Страница 50: ...accesses which have been blocked by the Access Control function Data shown in this log is as follows Date Time Date and Time of the attempted access Name If known the name of the PC whose access was b...

Страница 51: ...ded at the DDNS server If the DDNS Service provides software to perform this IP address update you should disable the Update function or not use the software at all 5 From the Internet users will be a...

Страница 52: ...Name Enter your Username for the DDNS Service Password Key Enter your current password for the DDNS Service Domain Name Enter the domain name allocated to you by the DDNS Service If you have more than...

Страница 53: ...nection as described below Communication Applications Select an Application This lists applications which may generate incoming connections where the destination PC on your local LAN is unknown Send i...

Страница 54: ...Internet screen You can then define your Special Applications You will need detailed information about the application this is normally available from the supplier of the application Also note that t...

Страница 55: ...umber enter it in both the Start and Finish fields Using a Special Application Configure the Special Applications screen as required On your PC use the application normally Remember that only one 1 PC...

Страница 56: ...ll use the WAN Internet IP address you enter on this screen To use this feature Enter an IP address allocated to you by your ISP into the WAN IP address field Select the PC to be the DMZ PC for traffi...

Страница 57: ...ny existing entries If you have not entered any values this list will be empty Schedule If you always want filtering to be active select Always Otherwise select the schedule to use You can define the...

Страница 58: ...NY entry ANYWHERE in the URL will be blocked Add Button Use this to add the entry in the Filter String above to the list Add Filter Delete Delete All Use these buttons to delete the selected entry or...

Страница 59: ...the time for a particular day is blank no action will be performed Figure 34 Define Schedule Screen Data Define Schedule Screen Day Each day of the week can scheduled independently Session 1 Session...

Страница 60: ...o display the PCs for the selected Group Group Members This lists all PCs which are currently members of the selected group Other PCs This lists all other PCs those which are not currently members of...

Страница 61: ...Figure 36 Virtual Servers IP Address seen by Internet Users Note that in this illustration both Internet users are connecting to the same IP Address but using different protocols To Internet users all...

Страница 62: ...riate Server software Protocol Select the protocol TCP or UDP used by the Server Internal Ports Enter the range of port numbers which the Server software is configured to use If only 1 port number is...

Страница 63: ...Add 4 The new Server will now appear in the list Modify Edit a Server 1 Select the desired Server from the list 2 Make any desired changes for example change the Enable Disable setting 3 Click Update...

Страница 64: ...values auto negotiated or entered here will be used For direct connections not PPPoE or PPTP the MTU used is always 1500 Identification Hostname Normally there is no need to change the default name bu...

Страница 65: ...n Method If your ISP does not use a login method username password for Internet access leave this at the default value None Direct connec tion Otherwise check the documentation from your ISP select th...

Страница 66: ...the desired idle time out period in mi nutes After the connection to your ISP has been idle for this time period the connection will be terminated Buttons Default Inserts the default MAC address into...

Страница 67: ...database is maintained automatically but you can add and delete entries for PCs which use a Fixed Static IP Address Remote Administration Allow settings to be changed from the Internet Routing Only re...

Страница 68: ...ow Figure 39 Config Screen Data Config File Screen Backup Config Use this to download a copy of the current configuration and store the file on your PC Click Download to start the download Restore Con...

Страница 69: ...e Destination will be shown as a URL Access Control If enabled the log will include attempted outgoing connections which have been blocked by the Access Control feature DoS Attacks If enabled this log...

Страница 70: ...enabled no logs will be sent For each type of log you can set the Subject field which is displayed in your inbox when you receive the mail E mail Subject For each type of log you can set the Subject f...

Страница 71: ...urrently exists you could get a Timeout error In that case wait a few seconds and try again Ping Button After entering the IP address click this button to start the Ping procedure The results will be...

Страница 72: ...unavailable UPnP Enable UPnP Services UPnP Universal Plug and Play allows automatic discovery and configuration of equipment attached to your LAN UPnP is by supported Windows ME XP or later If Enabled...

Страница 73: ...re automatically added to the database and updated as required By default non Server versions of Windows act as DHCP Clients this setting is called Obtain an IP Address automatically The Broadband Rou...

Страница 74: ...r not powered On you will not be able to add it Buttons Add This will add the new PC to the list The PC will be sent a ping to determine its hardware address If the PC is not available not con nected...

Страница 75: ...moved from your LAN The entry is incorrect PC Properties Name If adding a new PC to the list enter its name here It is best if this matches the PC s hostname IP Address Select the appropriate option A...

Страница 76: ...s the MAC address can NOT be left blank Buttons Add as New Entry Add a new PC to the list using the data in the Properties box If Automatic discovery for MAC address is selected the PC will be sent a...

Страница 77: ...mber Where ip_address is the Internet IP address of this device port_number is the port number assigned on this screen 3 You should then be prompted for the password for this device You must assign a...

Страница 78: ...re the following Windows 2000 settings are correct Open Routing and Remote Access In the console tree select Routing and Remote Access server name IP Routing RIP In the Details pane right click the in...

Страница 79: ...he shortest path will be used The default value is 2 Buttons Save Save the RIP setting This has no effect on the Static Routing Table Add Add a new entry to the Static Routing table using the data sho...

Страница 80: ...Gateway IP Address is the address of the Broad band Router s local router For routers which must forward packets to another router before reaching the Broadband Router s local router the Gateway IP Ad...

Страница 81: ...ination IP Address 0 0 0 0 Network Mask 0 0 0 0 Gateway IP Address 192 168 0 1 Broadband Router s IP Address For Router B s Default Route Destination IP Address 0 0 0 0 Network Mask 0 0 0 0 Gateway IP...

Страница 82: ...DoS firewall click this button to open a sub window Options Respond to ICMP The ICMP protocol is used by the ping and traceroute programs and by network monitoring and diagnostic programs If checked...

Страница 83: ...ck UDP Flood A UDP flood is excessively large number of UDP packets This is usually a DoS Denial of Service attack This setting should be normally be enabled Block non standard packets Abnormal packet...

Страница 84: ...le during the upgrade process and must restart when the up grade is completed Any connections to or through the Broadband Router will be lost Appendix A Troubleshooting This Appendix covers the most l...

Страница 85: ...using a Fixed Static IP Address check the Network Mask Default gateway and DNS as well as the IP Address If the PCs are configured correctly but still not working check the Broadband Router Ensure tha...

Страница 86: ...100mm D 27mm H Operating Temperature 0 C to 40 C Storage Temperature 10 C to 70 C Network Protocol TCP IP Network Interface 5 Ethernet 4 10 100 1000BaseT RJ45 LAN connection 1 10 100 1000BaseT RJ45 fo...

Страница 87: ...with the 99 5 EEC directives including the following safety and EMC standards EN301489 1 17 EN60950 CE Marking Warning This is a Class B product In a domestic environment this product may cause radio...

Страница 88: ...Broadband Router User Guide 86...

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