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Load Balancing Router User’s Guide.
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i T ABLE OF C ONTENTS 1: INTR OD UCTION ............ ............. .............. ............. ............. .............. ............. ............. ....... ............ .... 1 Internet Fe atures ........ ..... ... ... ..... ... .. ...... .. .....
ii 9: OPERA TION AN D STATUS ......... ... .......... ... ............. ........... ... ............. ............. ........... ... ........... .... 63 Operation ................ ............. ............. .............. ............. ............. .
Page 1 1: Introduction Congratulations on the purchase of your new Load Balanc er. The Load Balancer provid es Shared Broadband Internet Access for all LAN users.
Page 2 • Multiple IP Address Support If your ISP allocates you multiple IP a ddresses, these are als o supported a nd you can “map” IP addresses to indiv idual PCs if desired.
Page 3 Other Features • 4-Port Switching Hub The Load Balancer incorporates a 4-port 10 /100 BaseT switching hub, making it ea sy to create or extend your LAN. • DHCP Server Support D yna mi c H ost C onfiguration P rotoc ol provides a dynamic IP ad dress to PCs and oth er devices upon request.
Page 4 Package Contents The following items should be included: • The Load Balan cer Unit • Power Adapt er • Quick Installation Guide • CD-ROM containing the on-line manual. If any of the abov e items are damaged or missing, ple ase contact your dealer immedi ately.
Page 5 Also, some Status and Error conditio ns are indicated by combinations of LEDs, as shown below LED Action Condition WAN1 LINK/ACT & 10M/100M L EDs flash alternativel y. Firmware Download in progress. WAN1 LINK/ACT & 10M/100M L EDs flash concurre ntly.
Page 6 Rear Panel Figure 1- 2: Rear P anel DC 5V Connect the supplied power adapter here. WAN 2 Connect the 2 nd Broa dband Modem here, if available. Reset Button When pressed and released, The Load Balancer will reboot (restart) within 1 second. It resets to de fault over 3 sec onds.
Page 7 Figure 1-3: Windows TFTP utility • Enter the na me of the firmware upgrade file on your PC, or click the "Browse" button to locate the file. • Enter the LAN IP address of The Loa d Balancer in the "Server IP" field. • Click "Download" to send the file to The Load Balance r.
Page 8 2: Basic Setup Overview Basic Setup of your Load Bala ncer involves the follow ing steps: 1. Attach The L oad Balancer to one (1 ) PC, and configure i t for your LAN. 2. Install your Load Balancer in your LAN, and con nect the Broadband Mod em or Modems.
Page 9 • You can and should set a password, using the following Admin Passwor d screen. No Response ? • Is your PC using a Fixed IP addres s ? If so, you must configure your PC to use an IP a ddress within the range 192.168.1.2 to 192.168.1.254, with a Networ k Mask of 255.
Page 10 9. Select LAN & DHCP from the menu. You will see a screen like the exa mple below. Figure 2-3: LAN & DHCP 10. Ensure these settings are suitable for your LAN: • The default settings are suitable for many situa tions. • See the following table for de tails of each setting.
Page 11 • DHCP Server Setup - If you are already using a DHCP Server, the DHCP Server setting must be Disabled , and the existing DHCP server must be set to pro vide the IP addre ss of The Loa d Balancer as the Default G ateway . • Client Lease Time – It is a finite period of time for a DHC P server lease an IP address to a client.
Page 12 2. Installing The Load Balancer in your LAN Figure 2- 4: Installati on Diagra m 1. Ensure The Load Balancer and the DSL/Cable modem are p owered OFF. Leave the modem or mo dems connected to their d ata line. 2. Connect the Broadband modem or mo dems to The Load Balancer.
Page 13 • For each PC connected to the LAN ports, the c orresponding LAN LED (either 10 or 100 ) should be ON. 3. Configuring The Load Bala ncer for Internet Access Select Primary Setup from the menu, to see a s creen like the example below. • Configure WAN 1 and/or WAN 2 as required.
Page 14 Settings – Primary Setup Connection Mode Select the appropriate setting: • Enable – Select this if you have connected a bro adband modem to this port.
Page 15 Optional • Host n am e – This is required by some ISPs. If your ISP provided a H ost Name, enter i t here. Otherwise, you can use the default value. • Doma in na me – This is requir ed by some IS Ps. If your ISP provided a Domain Name, enter it here.
Page 16 4: Configure PCs on y our LAN Overvi ew For each PC, the following may nee d to be configu red: • TCP/IP network settings • Internet Access configuration TCP/IP Settings If using the defau lt Load Balancer settings, a nd the default Wind ows 9 5/98/ME/ 2000/X P TCP/IP settings, no changes need to be made.
Page 17 7. Select "Set up my connection manual ly" and click “ Next” . 8. Check "Connect using a broadban d connection that is always on" and click Next . 9. Clic k Finish to close the New Connection Wizard. Setup is now completed.
Page 18 • Set your De fault Gatewa y to the IP Address of The Load Balancer. • Ensure your DNS (Name server) settings are correct. To act as a DHCP Client (recommended) The procedure below may vary according to yo ur version of Linux and X -windo ws shell.
Page 19 3: Advanced Port Setup Overview • Port Options contains s ome options, w hich can be set on either or both W AN ports. For most situations, the default values are satisfactor y. • Load Balance screen is onl y functional if you are using both WAN ports.
Page 20 Settings – Port Options Connection Validation • Health Check – Disable will not do Alive Indicator Check. B y default health check is enab le. Health checking is performing an ICMP echo request and HTTP packets to the specific destination that could be either: 1.
Page 21 Load Balance This screen is only operationa l if using Internet connec tions on both WAN ports. Figure 3- 2: Lo ad B alance These settings are onl y functional if using both W AN ports. If using both WAN ports, these se ttings determine the proportion of traffic se nt over each port.
Page 22 Settings – Load Balance Load Balance Configuration • Enable – Use this to enable your Load Balanc e settings. Unless this is checked, the o ther settings on this screen have no ef fect. • Balance Type – Sele ct the desired option: • Bytes rx+tx – Traffic is mea sured by Bytes.
Page 23 Advanced PPPoE The screen is required in order to use multiple P PPoE sessions on the same WAN port. It can also be used to manu ally connect or disconnect a PPPoE sess ion. Figure 4: Advanced PPPoE Settings – Advanced PPPoE WAN Port PPPoE Session Select the desired Port and Session, then click the "Select" b utton.
Page 24 Advanced PPTP This screen is only usefu l if using the PPTP connectio n method. Figure 5: Advanced PPTP Settings – Advanced PPT P WAN Port Select the desired Port, then click the "Select" b utton. The data for the selected Port will then be disp layed in the WAN IP Account section.
Page 25 4: Advanced Configuration Overview The following advanced features are provided. • Host IP Se tup • Virtual Servers • Custom Virtual Server • Special Applications • Dyn amic DNS • Multi DMZ • Advanced Features • UPnP This chapter contains details of the configuration and use of each of these features.
Page 26 Figure 4-1: Host IP Setup Settings – Host IP Setup Host Network Identity This section identifies e ach Host (PC) • Host List – When adding a new Host, ignore this list. To edit an existing entry, select it from t he list, and click the "Select " button.
Page 27 Host Network Binding • Bind WAN port/Session – Select Enable if you wish to associate this PC with a particular PPPoE Session. All traffic f o r th at PC will then use the select ed PPPoE port and session. • Binding Method – Suppose your PC is bound to WAN1 port, now you are selecting “Strict Binding”.
Page 28 Virtual Servers This feature allo ws you to make Servers on your LAN accessible to In ternet users. Normally, Internet users would not be able to access a server on your LAN becaus e: • Your Server's IP address is onl y valid on your LAN , not on the Internet.
Page 29 Figure 4- 3: V ir tua l Ser ver Settings – Virtu al Server Enable Use this to Enable or Disable each Virtual server as required. Serv er Ty pe Select the desired Server type. If the type of Server you wish to use is not listed, use the Cus tom Virtual Server sc reen to define your own type.
Page 30 Custom Virtual Servers This screen allows you to define your own Serve r types, for situations when the desired Server type is not listed on the Vi rtua l S e r v er s screen. Figure 4-4: Custom Virtual Servers Settings – Custom Virtual Servers Select Custom Server Name Server List If creating a new entry, ignore this list.
Page 31 • Protocol Type – Select the ne twork protocol used by this sever type. • LAN Port Range – Enter the range of port number used for outgoing traffic from this Server. If only a single port is required, enter it in both fields . • WAN Port Range - – En ter the range o f port number used for incoming traffic to this Server.
Page 32 Special Applications If you use Interne t applications which have non-standard co nnections or port numbers, you may find that they do not function correctly bec ause they are blocked by the firewall in The Load Bala ncer. In this case, you can de fine the application as a "Sp ecial Application" in order to make it work .
Page 33 Outgoing Port Range Enter the beginning and en d of the range of port numbers used by the application server, for data you send . If the application uses a single port number, enter it in both fields. Incoming Protocol Selec t the protocol used b y this application, when receiving data from the remote s erver or PC.
Page 34 Dynamic DNS Dynamic DNS is very useful when combined with the Virtual Server feature. It allows Interne t users to connect to your Virtual Servers using a URL, ra ther than an IP Address. This also solv es the problem of having a dynami c IP address.
Page 35 Settings – Dynamic DNS Dynamic DNS Service Use this to Enable/Disable the D ynamic DNS feature, and select the requ ired service provider. • Disable – D ynamic DNS is not used. • TZO – Select this to use the TZO s erv ice (www.tzo.co m).
Page 36 Multi D MZ This feature allo ws each WAN port IP addres s to be associated with one (1) computer on your L AN. All outgoing traffic from that PC will be associate d wi th that WAN port IP address.
Page 37 Settings – Multi DMZ Enable Use this to enable or dis able the DMZ setting, as required . Nam e Enter a name to assist you to remember this setting. This name has no effect on the operation. For Static IP Public IP address Enter the W AN port (Intern et) IP add ress you wis h to associate to a PC.
Page 38 UPnP With UPNP (Universal Plug & Play) function, it ca n easily setup a nd configure an entire network, enable discovery and control o f network ed devices and services. Figure 4-8: UPnP Settings – UPnP UPnP Option If you Enable UPnP, then this two wan router will become one o f the entire local network.
Page 39 NAT NAT (Network Address Trans lation) is the techn ology which allows one (1) WAN (Internet) IP address to b e used by man y LAN users. Figure 4-9: NAT.
Page 40 Settings – NAT NAT Configuration • NAT Routing – You can enable or disable NAT through the check box. If you disable NAT checkbox, it will act as a br idge or Static Router. Most features will be unavai lable. • TCP Timeout – Enter the desi red valu e t o use on bot h WA N po rt s.
Page 41 Advanced Features This screen allows you to change so me advanced settings: • Remote Access C onfiguration – This fea ture allows you to manage The Load Balance r via the Internet. You can res trict access to a s pecified IP address or address ra nge.
Page 42 Settings – Advanced F eatures Remote Access Configuration • Remote Upgrade – If enabled, you can use the su pplied Windows program to remotely upgrade the Firmware.
Page 43 Inte rface Binding SMTP (Simple Mail Transport Protocol) Binding Unless you are us ing E-mail accounts from di fferent ISPs on each port, you can ignore these settings. Some ISPs configure their E-mail Server s so they will not accept E-mail from IP addresses not allocated b y themselves.
Page 44 5: Security Management Overview • URL Filter It can block specific or browse only certain website by configure IP address, U RL or Key words • Access filter You can block all In ternet access or selec t block well-known p ort or block us er define ports by groups.
Page 45 Settings – URL Filter Access Group This allows you have different blocking rules for different Groups of PC s. • All PCs (users) are in the Defaul t Group unless moved to another group on the Host IP screen. • If you want the same res trictions to apply to everyone, s elect Default for the Group.
Page 46 Access Filter The network Administra tor can use the Acce ss Filter to gain fin e control over the In ternet access and applications available to LAN users. • Five (5) user groups are available, a nd each group can have different acc ess rights.
Page 47 Block Well-known ports Select the serv ices you wish to bloc k. The current group will not be able to use any service s which are checked. User-defined Ports to Block This section is optional. It allows you to define your own filters if required.
Page 48 Session Limit This new feature allows to drop the new sess ions from both WAN and L AN side. If the new sessions number are exce ed the maximum sess ions in a sampling time. Figure 5-3: Session Limit Sessi on Limi t Sampl i n g Tim e The period to count the n ew session.
Page 49 System Filter Exception System Filter Exception Ru les: The rules with which any received packets is co mplied, the packets will not proces sed by Firewall or NAT module, b ut to be pro cessed directly by system protocol stack .
Page 50 6: QoS Configuration Overview The Load Balance r provides QoS, which supports the high quality of netwo rk service. Because it will classify outgoing pa ckets based on some po licies defined by users , make some real-time applications to get better response or p erformance.
Page 51 Policy Configuration When you use QoS , you must define some policies to mak e some packets to have higher priority to pass thro ugh. Figure 6-2: Po licy Configurat ion Data – Policy Configuration. Network Admissi on Policy This section identifies each policy • Policy N ame List – When adding a new Policy, ignore this list.
Page 52 7: Management Assistant Overview The following advanced features are provided. • SNMP • Email Alert • SNMP • Syslog • Upgrade Firmware This chapter contains details of the configuration and use of each of these features. SNMP This section is only useful if you have SNMP (Simple Network Management Pro tocol) software on your PC.
Page 53 Settings – SNMP System Information • Contact Person – The name of the person responsible for this device. • Device name – The name of The Load Balancer. • Physical Location – The location of The Load Balancer. Trap Targets Enter the IP address of an y targets (PCs running SNMP software) to which you want traps to be sen t.
Page 54 Settings – Email Alert Enable/Disable Email Alert • Enable – This w ill enable email alert to send a warning email when WAN port was disconne cted. Email Alert Configuration • Sender Address – It is an email address that s ends a warning email to a recipient.
Page 55 Syslog This feature can send re al time system information on the web page or to the specified PC. Syslog Configuration – Syslog Configuration allow you where to send s ystem information to other machine or not. There are up to three machine s you can choose to send your system log.
Page 56 Syslog Configur ation Syslog Global • Enable – Set to “enable”, if you w ant to send system log messages to other machine. Keep Sent Messages • Enable – Checked this, if you w ant to keep sent mes sages, otherwise the sent messages will be deleted.
Page 57 Admin Password Screen The password screen allows you to a ssign a pass word to The Load Balancer. Figure 7-4: Admin Pass word Screen Enter the de sired password, re-en ter it in the Veri fy P ass wor d field, then save it.
Page 58 Upgrade Firmware This Upgrade Firmware Screen allow s you to upgrade firmware or bac kup system configuration b y using HTTP upgrade. Figure 7-6: Firmware Upgrade Screen You can ba ck up your s ystem con figuration b y pres s “s ave” b utton of Save S ystem Con figuration.
Page 59 8: Advanced LAN Configuration Overview These screens and settings are prov ided to deal w ith non-standard situations , or to provide additional options for advanced users. Existin g DHCP Server If your LAN already has a DHCP Server, and you wish to cont inue using it, the following configuratio n is required.
Page 60 Figure 8-1: Routing Note: If there is an entry or entries in the Routing table with an Index o f zero (0), these are System entri es. You cannot modify or de lete these entries. Settings – Routing Dynamic Routing • RIP v2 – This acts as “ master” switch.
Page 61 Gatewa y The IP Address of the Gatewa y or Rout er that The Lo ad Balancer mus t use to communicate with the des tination above. (NOT the router attached to the remote segment.) Interface Select the correct inter face, usually "LAN".
Page 62 Gateway IP Address 192.168.1.100 Interface LAN Metr ic 2 Entry 2 (Segm ent 2) Destination IP Address 192.168.3.0 Network Mask 255.255.255.0 (Standard Class C) Gateway IP Address 192.168.1.100 Interface LAN Metr ic 3 For Router A's Default Route Destination IP Address 0.
Page 63 9: Operation and Status Operation Once both The Load Balancer and the PCs are configured, operation is au tomatic. However, there are some situations where additional Internet configuration ma y be required: Refe r t o Chapter 4 - Advanced Features for furt her details .
Page 64 Data – System Status WAN Information • Connection Status – Current status – either "Conn ected" or "Not connec ted". • Connection Type – The type of connection used – DHCP, Fixed IP, PPPoE, or PPTP. • "Force Renew" button– Only available if using a d ynamic IP address (DHCP).
Page 65 Buttons • Refresh – Update the da ta on scre en. • Restart – Restart (reboot) The Load Balancer. • Restore Factory Defaults – This will delete all exis ting settings, and restore the factory default s ettings. See below for details.
Page 66 WAN Statu s Use the WAN Status link on the main menu to view this screen. Figure 9-3: WAN Status Data – System Status NAT Statistics This section displays data for each WAN por t. • Connection status – This will disp lay either Connected or N ot Connected .
Page 67 NAT Status This screen is displayed when you click the "Check NAT Detail" button on the WAN Sta tus screen. Figure 9-4: NAT Status Data – NAT Status LAN IP Info • IP Ad dre ss – The LAN IP Address of The Load Balancer. • Mask Address – The Network Mask (Subnet Mask) for the IP Address above.
Page 68 TCP Prosperity This displays the MSS (Maximum Segment Size) and Maximum Windows size for TCP pac kets. NAT Traffic This sectio n displays statistics for both outgoing (LAN to Internet) and Incoming (Internet to Local) traffic . NAT Connections This displays the curren t number of active connec tions.
Page 69 Appendix A Specifications Model BR-6624 Dimensions 245mm (W) x 137mm (D) x 30mm (H) Operating Temperature 0 ° C to 40 ° C Storage Temperature -10 ° C to 70 ° C Network Protocol: TCP/IP Net.
Page 70 Appendix B Windows TCP/IP Setup Overview TCP/IP Settings If using the default Load Balancer settings, and the default Window s 95/98/ME/2000 TCP/IP settings, no c hanges need to be made.
Page 71 Figure B-2: IP Address (Win 95) Ensure your TCP/IP settings are correct, as follows: Using DHCP To use DHCP, select the radio button O b tain an IP Add re ss autom atically . This is the default Windows settings. Restart your PC to ensure it obtains an IP Addre ss from The Load Balanc er.
Page 72 • On the DNS Configuration tab, ensu re Enable DNS is selected. If the D NS Server S earch Order list is empty, enter the DN S address provi ded by your ISP in the fields beside the Add button, then click Ad d . Figure B - 4: DNS T ab (Win 95/98) Checking TCP/IP Settings - Win dows 2000: 1.
Page 73 Figure B-6: TCP/IP Propert ies (Win 2000) 5. Ensure your TCP/IP settings are correct: Using DHCP To use DHCP, select the radio button O b tain an IP Add re ss autom atically . This is the default Windows settings. Restart your PC to ensure it obtains an IP Addre ss from The Load Balanc er.
Page 74 Checking TCP/IP Settings - Win dows XP: 1. Select Control Panel - Network Connection. 2. Ri ght cl ick the Local Area Connection and choose Properties . Yo u should see a scre en like the following: Figure B-7: Network Configuration (Windows XP) 3.
Page 75 Figure B-8: TCP/IP Properties (Windows XP) 5. Ensure your TCP/IP settings are correct. Using DHCP To use DHCP, select the radio button obtain an IP Address automatically . This is the default Windows settings. Restart your PC to ensure it obtains an IP Addre ss from The Load Balancer.
Page 76 Appendix C Troubleshooting Overview This chapter cove rs some common proble ms that may be enc ountered while using The Load Balancer and some possible solutions to them. If you follow the suggested steps and The Load Balancer still does not function properly, con tact your dealer for further advice.
Page 77 Solu tio n 2 : The Load Balancer proces ses the data passing throu gh it, so it is not tran sparent. Use the Special Applications f eature to allow the use of Internet app lications which do not function correctly. If this does s olve the problem you can use the DMZ functio n.
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