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Settings – Syslog 

Syslog Delivery 

• 

Sending Out

 – Set to “

Enable

”, if you want to send system log messages 

to other machines (PCs).  

• 

Keep Sent Message

 – If set to Enable, it means you want to keep sent 

messages; otherwise the sent messages will be deleted. 

• 

Syslog Server 

– Up to 3 syslog servers can be used.

 

• 

IP Address

: The IP address(es) of the syslog server(s) that you want to 

send to.

 

• 

Port

: If your syslog server does not use the default port, you can

 

change it. 

• 

Log Priority Level

: The syslog messages are divided into 8 levels from 

Emergency to Debug. The lower the level, the more messages will be 
generated. Emergency is the highest priority level and Debug is the 
lowest. 

Log Priority for 
Modules 

By pressing the “Expand” button, selection can be made as to which syslog 
module and level should be sent to the syslog server

You can arrange all items 

on a line by pressing the “Collapse” button. 

SNTP (Simple 
Network Time 
Protocol) 
Configuration 

SNTP is an Internet protocol to synchronize the computer (device) clock. You 
can select your location from the pull-down menu and fill in the SNTP server’s 
IP address. The local clock will then synchronize with your device which 
updates with the correct time received from the SNTP server, then adds the 
Time Zone. 

 

Page 77 

Summary of Contents for ER-1088

Page 1: ...Multi WAN VPN Link Balancer User s Guide...

Page 2: ......

Page 3: ...4 ADVANCED SETUP 27 Overview 27 Host IP 27 Routing 29 Virtual Server 33 Special Application 36 Dynamic DNS 38 Multi DMZ 40 UPnP Setup 42 NAT Setup 43 Advanced Feature 45 5 SECURITY MANAGEMENT 48 Block...

Page 4: ...n 80 System Status 80 WAN Status 83 APPENDIX A SPECIFICATIONS 85 APPENDIX B WINDOWS TCP IP SETUP 86 Overview 86 TCP IP Settings 86 APPENDIX C TROUBLESHOOTING 92 Overview 92 General Problems 92 Interne...

Page 5: ...access If all 8 WAN ports are not used the remaining WAN ports will be available as LAN Ports but by default at least 2 of the ports will be used as WAN ports Shared Broadband Internet Access All LAN...

Page 6: ...ming connection requests which would otherwise be blocked For each IP address allocated by your ISP a separate DMZ PC can be specified So if your ISP has given you multiple IP addresses you can have m...

Page 7: ...ncer can be managed from any PC on your LAN Also if an Internet connection exists it can optionally be configured via the Internet Password protected Configuration Optional password protection is prov...

Page 8: ...When UPnP Universal Plug Play is set to Enable the Multi WAN VPN Link Balancer becomes a network device This feature is useful for detecting and controlling network devices such as Internet gateways P...

Page 9: ...above items are damaged or missing please contact your dealer immediately Physical Details Front Panel Figure 1 2 Front Panel Front Panel LED indication is as follows Power OFF No Power ON Normal Ope...

Page 10: ...Reset Button When pressed and released the Multi WAN VPN Link Balancer will reboot restart within 1 second It will reset to default when pushed and held for more than 3 seconds Some Status and Error c...

Page 11: ...empting to restore it by upgrading the firmware Follow this procedure 1 2 Power On the Multi WAN VPN Link Balancer Use the supplied Windows utility or a TFTP client program to apply the new firmware I...

Page 12: ...s Save the current configuration settings to your PC use the Save Configuration button Restore a previously saved configuration file to the Multi WAN VPN Link Balancer use the Upgrade Firmware button...

Page 13: ...e standard 10 100BaseT network UTP cables with RJ45 connectors TCP IP network protocol must be installed on all PCs Procedure 1 Configuring the Multi WAN VPN Link Balancer for your LAN 1 2 3 4 5 6 Use...

Page 14: ...it is highly recommended that you set a password You may do this using the Admin Setup screen After logging in you will see the Administrator Password setup in the Admin Setup screen as shown below A...

Page 15: ...e Multi WAN VPN Link Balancer must be disabled You will find this setting in the LAN DHCP screen Your DHCP Server must be configured to provide the Multi WAN VPN Link Balancer s LAN IP Address as the...

Page 16: ...access the Internet through NAT DHCP Configuration Lease Time This is a finite period of time for a DHCP server to lease an IP address to a client DNS Server IP for Client An IP address of the defaul...

Page 17: ...WAN VPN Link Balancer Both 10BaseT and 100BaseT connections can be used simultaneously If you need to connect the Multi WAN VPN Link Balancer to another Hub just use a standard LAN cable to connect a...

Page 18: ...p to eight 8 WAN ports Once you have selected how many ports you are going to use click on Submit You may then proceed to the Primary Setup page Figure 2 5 MAX WAN Select Primary Setup from the menu Y...

Page 19: ...if your ISP has provided a Fixed or Static IP address Enter the data into the Address Info fields Dynamic IP Select this if your ISP provides an IP address automatically when you connect You can ignor...

Page 20: ...e multiple PPPoE sessions on either port configure settings in the Advanced PPPoE screen DNS If using a Fixed IP address you MUST enter at least 1 DNS address If using a Dynamic IP PPPoE or PPTP DNS i...

Page 21: ...TCP IP settings refer to Appendix B Windows TCP IP Setup Internet Access To configure your PCs to use the Multi WAN VPN Link Balancer for Internet access follow this procedure For Windows 9x 2000 1 2...

Page 22: ...nfiguration is now complete Before clicking Sign On always ensure that you are using the Multi WAN VPN Link Balancer location Macintosh Clients For Macintosh users the procedure for accessing the Inte...

Page 23: ...rver settings are correct To act as a DHCP Client recommended The procedure below may vary depending on your version of Linux and X windows shell 1 2 3 4 5 Start your X Windows client Select Control P...

Page 24: ...iple WAN ports It allows you to determine the proportion of WAN traffic sent through each port Advanced PPPoE setup is required if you wish to use multiple sessions on each WAN port It can also be use...

Page 25: ...not You may change this address if you wish Default is the gateway IP Note This is not used for PPPoE connections Transparent Bridge Option Bridge Mode If set to Enable this WAN port doesn t use NAT...

Page 26: ...is only operational if using Internet connections on multiple WAN ports Figure 3 2 Load Balance Only functional when using two 2 or more WAN ports these settings determine the proportion of traffic se...

Page 27: ...in Continuously repeating sequence Weight Round Robin In sequence with weight placed accordingly Loading Share Enter the percentage of traffic to be sent over each WAN port If one WAN port connection...

Page 28: ...e multiple floating real IPs for PPPoE Each WAN port can have up to eight 8 PPPoE sessions each with a different IP address if your WAN port is using PPPoE connectivity PPPoE Session MTU The Maximum T...

Page 29: ...his determines when an idle connection will be terminated Enter the required time period 1 Always on Echo Time This determines how often an Echo request is sent to the PPPoE server The Echo request is...

Page 30: ...xed IP address enter if here Otherwise this field should be left at 0 0 0 0 PPTP Auto Dialup Auto Dialup connect on demand If set to Enable a connection will be established whenever outgoing WAN traff...

Page 31: ...Filter feature This requires that each PC is identified by using the Host IP screen You wish to have different Block URL settings for different PCs This requires that each PC is identified by using t...

Page 32: ...dress of this Host Select Group Select the group you wish this Host to be included in Reserve in DHCP Select Enable to reserve a particular LAN IP address for a particular PC on your LAN This allows t...

Page 33: ...rt and Session Otherwise ignore these settings Note Multiple PPPoE sessions are defined on the Advanced PPPoE screen Buttons Add Use this to add a new entry to the database using the data shown on scr...

Page 34: ...entries You cannot modify or delete these entries Settings Routing Dynamic Routing RIP v2 This acts as a master switch If enabled the selected WAN or LAN will run RIPv1 v2 otherwise RIP function will...

Page 35: ...s only available if NAT Network Address Translation is disabled Metric The number of hops routers to pass through to reach the remote LAN segment The shortest path will be used Routing List This shows...

Page 36: ...IP Address 192 168 1 100 Interface LAN Metric 2 Entry 2 Segment 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 Metric...

Page 37: ...4 Multi WAN VPN Link Balancer Figure 4 4 Virtual Server Note that in this illustration both Internet users are connecting to the same IP Address but using different protocols Connecting to the Virtual...

Page 38: ...nown virtual servers have been listed on the Custom Virtual Server List Protocol Select the network protocol TCP UDP used by this sever IP Address LAN Enter the IP address of the server on your LAN wh...

Page 39: ...y a range of remote side IP addresses to access the virtual servers The default entry 0 0 0 0 0 0 0 0 means all remote side IP address can access it Buttons Add Create a new Virtual Server entry Delet...

Page 40: ...t function correctly because they are blocked by the firewall in the Multi WAN VPN Link Balancer In this case you can define the application as a Special Application in order to make it work Note that...

Page 41: ...ive If the application uses a single port number enter it in both fields Buttons Add Create a new Special Application entry Delete Delete the selected entry Update Save any changes you have made to th...

Page 42: ...client available at http www dyndns org Other sites may offer the same service but can not be guaranteed to work TZO at http www tzo com 3322 is available in China at http www 3322 org To use the Dyna...

Page 43: ...China It is similar to DynDNS User Defined DDNS Server This is the user defined DDNS server If the DDNS provider is other than TZO dyndns org or 3322 Additional Settings These options are available i...

Page 44: ...Any traffic sent to that IP address will be forwarded to the specified PC allowing unrestricted 2 way communication between the DMZ PC and other Internet users or Servers Note The DMZ PC is effective...

Page 45: ...on the operation Private IP Address LAN Enter the IP address of the PC you wish to associate with this WAN port IP address This IP address should be fixed or reserved See the Host IP section for detai...

Page 46: ...p UPnP Option If set to Enable UPnP this device will register on the local network You will find that there is an icon showing on the My Network Places in Window XP Each time you add a new service wit...

Page 47: ...disable the NAT checkbox it will act as a bridge or Static Router Most features will be unavailable TCP Timeout Enter the desired value to use on each WAN port The default is 300 UDP Timeout Enter th...

Page 48: ...alias of the host with Local LAN IP accessing the Internet via the specified WAN port for the specified protocol packets i e 1 1 NAT NAT Alias List NAT Alias List shows the list of all NAT alias conf...

Page 49: ...eived from the WAN port or not Interface Binding Use these settings to ensure that certain traffic is sent by a particular WAN port and thereby a particular ISP account These settings are only useful...

Page 50: ...ing E mail accounts from different ISPs on each port you can ignore these settings Some ISPs configure their E mail Servers so they will not accept E mail from IP addresses not allocated by them If yo...

Page 51: ...Protocol Port Binding List This list shows the details of all protocol and port configuration data which are currently defined You can modify them by clicking on a selected row Page 47...

Page 52: ...s to run more smoothly This is also applicable for some future applications that may need this mechanism in order to work well Block URL This feature allows you to block access to undesirable Web site...

Page 53: ...esired Group and click the Select button The screen will update the data for the selected Group URL List Type Black List If you select Black List It will block the URL that you keep it on Access Item...

Page 54: ...ver the Internet access and applications available to LAN users Five 5 user groups are available and each group can have different access rights assigned to them All PCs users are in the Default group...

Page 55: ...efine your own filters ICMP Filters If you enable ICMP Filter that means it will block ICMP request packet types specified by users from local host to remote side User Defined Filter This section is o...

Page 56: ...t The maximum number of new sessions from the host which is acceptable in the sampling time Any new incoming sessions will be dropped from this host after the number of new sessions has been exceeded...

Page 57: ...AN any WAN port or ALL interfaces from which a packet originates Protocol The packet type selected in the above Interface which will be directly processed by this device Foreign Port Range Enter the b...

Page 58: ...urely between two networks We call this by creating a tunnel A VPN tunnel connects the two PCs or networks Note The VPN Load Balancer uses industry standard IPSec encryption However due to the variati...

Page 59: ...Association lifetime is 28800 seconds When it is expired a new key is re negotiated During the negotiation period the VPN tunnel isn t available Retry Counter This indicates how many times the proces...

Page 60: ...ust specify each phase of the connection 3 At least one side must have a fixed IP address The other side with a dynamic IP address must always be the initiator of the connection 4 What encryption leve...

Page 61: ...ies identify the private network on this VPN gateway the hosts of which can use the LAN to LAN connection You can choose a single IP address the subnet or a selected IP range to make VPN LAN to LAN co...

Page 62: ...another way of accomplishing a phase one exchange It is faster and simpler than Main Mode but does not provide identity protection for the negotiating nodes Perfect Forward Secrecy PFS If PFS is enabl...

Page 63: ...nnection so it can be re established This is the primary method of VPN failover or backup Detection If set to Enable this will enable the following Check Method which you have selected to work Check M...

Page 64: ...nnel state will remain idle until an attempt is made to connect to the remote side This setting will override the Auto Triggered option Check ESP Pad If set to Enable a device will check the ESP Encap...

Page 65: ...on t have to enter IPSec policy setup again here You can press the Scan Policies button to copy the IPSec Policy into the Mesh Group Setup web page You also can configure your IPSec Policy on the Mesh...

Page 66: ...ng for VPN load balancing You should enable the check box before you make a VPN load balance connection Delete Button This button can delete one or all IPSec Policies Set Button Once you have enabled...

Page 67: ...6 6 VPN Logs Data VPN Logs Message Status Time Indicates when the message was created according to system time Priority Indicates the priority level of a message for analysis Undefined Messages Module...

Page 68: ...ce utility to provide high quality network support service Because it classifies outgoing packets based on policies defined by users real time applications should respond or perform better QoS Setup T...

Page 69: ...An 8 bit field in the IP packet header designed to contain values indicating how each packet should be handled in the network If you choose enable it will enable this function to process IP TOS fields...

Page 70: ...addresses Destination Address Define the destination address of packets here The explanation is the same as above Protocol Type The field defines traffic packet type i e ICMP TCP or AH Source Port De...

Page 71: ...porates a DNS server module Users must first construct a server behind the LAN side of the Multi WAN VPN Link Balancer It is also necessary for users to register a domain name with at least two WAN IP...

Page 72: ...N Domain SOA Record in SOA The start of a zone of authority It records all authoritative information Primary Name Server The primary server name that you give to this server e g pns1 Its FQDN is pns1...

Page 73: ...DNS Record Apart from setting up the DNS SOA configuration to complete the whole DNS setup it is also necessary to configure the DNS record Figure 8 2 DNS Record Page 69...

Page 74: ...an select Static IP Enter IP address in Public IP Address WAN IP Choose any WAN Interface IP you wish VServer of WAN Choose any WAN IP of Vserver you have set NAT Alias Choose any WAN IP of NAT Alias...

Page 75: ...use of each of these features Admin Setup Remote Access Configuration This feature allows you to manage the Multi WAN VPN Link Balancer via the Internet You can restrict access to a specified IP addr...

Page 76: ...d access is only available by a PC on the LAN Access port The port number used when connecting remotely The default port number is 8080 Allowed Remote IP Remote access is only available to the IP addr...

Page 77: ...Email Alert Settings Email Alert Global Setting Notification on Link Down If set to Enable it will send a warning email to alert the administrator when any WAN port is disconnected Excessive Ping This...

Page 78: ...password for the sender Sender Address An email address that sends a warning email to a recipient Recipient Address An email address that a warning email will be sent to Usually this is a system admin...

Page 79: ...he name of this device Physical Location The location of the device Community Community Name This is a password or key used between this device and the management station The administrator manager mus...

Page 80: ...to select whether to send the system information to another machine or not Up to three machines can be chosen to send the system log to Message Status Messages are only sent and kept when Keep Sent Me...

Page 81: ...ency to Debug The lower the level the more messages will be generated Emergency is the highest priority level and Debug is the lowest Log Priority for Modules By pressing the Expand button selection c...

Page 82: ...by the port number e g HTTP 123 123 123 123 8080 This example assumes that the WAN IP Address is 123 123 123 123 and the port number is 8080 If using the Dynamic DNS feature you can connect using the...

Page 83: ...uration Save button This will save the system configuration for future use You also can upgrade the firmware by inputting the correct password browsing to the firmware upgrade file and then pressing t...

Page 84: ...gured operation is automatic However there are some situations where additional Internet configuration may be required Refer to Chapter 4 Advanced Setup for further details System Status Use the Syste...

Page 85: ...ateway MAC Address The MAC physical address of the Multi WAN VPN Link Balancer as seen from the Internet LAN Interface IP Address The LAN IP Address of the Multi WAN VPN Link Balancer Subnet Mask The...

Page 86: ...actory default settings See below for details Restore Factory Defaults When the Restore Factory Defaults button on the Status screen above is clicked the following screen is displayed Figure 11 2 Rest...

Page 87: ...lt traffic loading on each WAN port Current Loading Share The current traffic loading on each WAN port Current Loading The number of current traffic Sessions Bytes and Packets being processed on each...

Page 88: ...Interface Statistics This section displays cumulative statistics Use the Restart Counter button to restart these counters when required Page 84...

Page 89: ...AC 100V 240V 50 60 Hz FCC Statement This device complies with Part 15 of the FCC Rules Operation is subject to the following two conditions 1 This device may not cause harmful interference 2 This dev...

Page 90: ...C boots For all non Server versions of Windows the default TCP IP setting is to act as a DHCP client If you wish to check your TCP IP settings the procedure is described in the following sections If y...

Page 91: ...r PC is already configured check with your network administrator before making the following changes If the DNS Server fields are empty select Use the following DNS server addresses and enter the DNS...

Page 92: ...B 4 DNS Tab Win 95 98 Checking TCP IP Settings Windows 2000 1 2 Select Control Panel Network and Dial up Connection Right click the Local Area Connection icon and select Properties You should see a sc...

Page 93: ...P Address Use the following IP Address If your PC is already configured check with your network administrator before making the following changes Enter the Multi WAN VPN Link Balancer s IP address in...

Page 94: ...ht click the Local Area Connection and choose Properties You should see a screen like the following Figure B 7 Network Configuration Windows XP Select the TCP IP protocol for your network card 3 4 Cli...

Page 95: ...IP Address Use the following IP Address If your PC is already configured check with your network administrator before making the following changes Enter the Multi WAN VPN Link Balancer s IP address in...

Page 96: ...t is using an IP Address within the range 192 168 1 2 to 192 168 1 254 and thus compatible with the Multi WAN VPN Link Balancer s default IP Address of 192 168 1 1 Also the Network Mask should be set...

Page 97: ...ugh it so it is not transparent Use the Special Applications feature to allow the use of Internet applications which are not functioning correctly If this does solve the problem you can use the DMZ fu...

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