QNO FQR8030 User Manual Download Page 113

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2WAN 4LAN Medium Scale Multi-WAN QoS Router

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System tools, ports and security settings

This chapter introduces operation methods of some tools, port management and

network security settings. These settings facilitate user management of the device and

device ports so as to enhance the device security.

Summary of Contents for FQR8030

Page 1: ...2 WAN 4LAN Medium Scale Multi Wan QoS Router Load Balancing Bandwidth Management Network Security Management English User s Manual...

Page 2: ...rt Management 45 6 1 Port Setup 45 6 2 Port Status 48 6 3 DHCP IP Issuing Server 50 6 4 DHCP Status 52 6 5 IP MAC Binding 53 6 6 IP Group 58 7 QoS Quality of Service 59 7 1 Bandwidth Management QoS 60...

Page 3: ...11 1 Diagnostic 111 11 2 Firmware Upgrade 113 11 3 Setting Backup 114 11 4 SNMP 115 11 5 System Recovery 117 12 Log 119 12 1 System Log 120 12 2 System Status 125 12 3 Traffic Statistic 127 12 4 IP P...

Page 4: ...IP and auto Load Balance The device has strong bandwidth management capability It also has built in management fuction to block QQ MSN Skype and figure out that the bandwidth is occupied by BT Xunlei...

Page 5: ...n Green LED on WAN port is designated Green LED off LAN port is designated Hardware Reset Button Action Description Press Reset Button For 5 Secs Warm Start DIAG indicator Amber LED flashing slowly Pr...

Page 6: ...vice on a rack Overloading may cause the rack to fail thus causing damage or danger Each device comes with a set of rack installation accessories including 2 L brackets and 8 screws Users can rack mou...

Page 7: ...n be connected with xDSL Modem Fiber Modem Switching Hub or through an external router to connect to the Internet LAN Connection The LAN port can be connected to a Switching Hub or directly to a PC DM...

Page 8: ...le Multi WAN QoS Router 5 3 Log In and Set Up Input User name and Password as per above image and then click OK Both default user name and password are admin It is strongly recommended that the user c...

Page 9: ...ow the relevant set up tab will be loaded for users to choose their management options Three language versions Simplified Chinese Traditional Chinese and English are offered in this page Click the lan...

Page 10: ...S Indicates if Dynamic Domain Name is activated The default configuration is Off Quality of Service Indicates how many QoS rules are set Manual Connect When Obtain an IP automatically is selected two...

Page 11: ...nd statisitcs of the selected port The current port setting status information will be shown in the Port Status Table Examples Network connection port on or off priority high or normal connection spee...

Page 12: ...current working mode The default is Gateway mode System active time Indicates how long the device has been running Serial Number This number is the device serial number Firmware Version Information a...

Page 13: ...ault configuration is On Block WAN Request Indicates that denying the connection from Internet is activated The default configuration is On Prevent Arp Virus Attack Indicates that preventing Arp virus...

Page 14: ...2WAN 4LAN Medium Scale Multi WAN QoS Router 11 4 1 5 Log Setting Status Syslog Server Indicates if Syslog Server is Enabled or Disabled Email Alert Indicates if Email Alert is Enabled or Disabled...

Page 15: ...after configuration has been completed Remember to click Apply when the configuration data has been completed User Name The default is admin Old Password Input the original password New User Name Inp...

Page 16: ...that are recorded in the System Log and the time of closing or opening access for Internet resources Configuring Automatic Synchronize With NTP Function Select the time zone from the Time Zone pull do...

Page 17: ...e Multi WAN QoS Router 14 Input Date and Time Manually Input the correct date and time in the boxes After the changes are completed click Apply to save the configuration or click Cancel to leave witho...

Page 18: ...2WAN 4LAN Medium Scale Multi WAN QoS Router 15 5 Network 5 1 Network Connection 5 1 1 Host Name and Domain Name Device name and domain name can be input in the two boxes Though this...

Page 19: ...ranet PC it is not necessary to reconfigure the static IP for the original PC All that is necessary is to modify the static ARP IP to map with the MAC After the changes are completed click Apply to sa...

Page 20: ...2WAN 4LAN Medium Scale Multi WAN QoS Router 17 Click Add Edit to enter the configuration page as shown in the following figure Input the hrespective IP addresses and subnet masks...

Page 21: ...int to Point Tunneling Protocol Transparent Bridge Config A modification in an advanced configuration Click Edit to enter the advanced configuration page WAN and the Internet Connection Configuration...

Page 22: ...terruption all the external connections that go through this WAN will be interrupted too Only after the interrupted lines are reconnected can they go through the standby system to connect with the Int...

Page 23: ...ention Even if ISP offers a static IP address it might be an automatic mode to obtain a DHCP IP or to obtain a PPPoE dial up IP Although the IP address obtained will be the same each time users still...

Page 24: ...connections to be made through another WAN to the Internet In this way the effect of any interruption can be minimized Line Dropped Period Input the time rule for the interruption of this WAN service...

Page 25: ...onnection to keep connected and to automatically redial if the line is interrupted It also enables a user to set up a time for redialing The default is 30 seconds Enable Line Dropped Scheduling The WA...

Page 26: ...go through another WAN to connect with the Internet Shared Circuit WAN environment Choose whether this WAN share bandwidth with others from the same circuit or not MTU Input the packet maximum transmi...

Page 27: ...tic break off when no packets have been transmitted is five minutes Keep Alive This function enables the PPTP dial connection to redial automatically when the connection has been interrupted Users can...

Page 28: ...nd users don t want to substitute private network IPs for all Intranet IPs ex 192 168 1 X this function will enable users to integrate existing networks without changing the original structure Select...

Page 29: ...ctions that go through this WAN will be interrupted too Only after the interrupted lines are reconnected can they go through the standby system to connect with the Internet Therefore to avoid a huge n...

Page 30: ...ted in different Subnets For example If the ISP issued 16 real IPs 220 243 230 1 16 with Mask 255 255 255 240 users have to separate the 16 IPs into two groups 220 243 230 1 8 with Mask 255 255 255 24...

Page 31: ...th others from the same circuit or not After the changes are completed click Apply to save the configuration or click Cancel to leave without making any changes 5 2 Traffic Management 5 2 1 Load Balan...

Page 32: ...andwidth Users can assign a specific Intranet IP to go through a specific service provider for connection or assign an IP for a specific destination to go through the WAN users assign to connect with...

Page 33: ...unt to achieve network load balance Note Only when a device assignment is collocated with Protocol Binding can the balancing function be brought into full play For example an assignment requiring all...

Page 34: ...and then at the bottom of the configuration window click Apply The device will then dispatch the traffic to the assigned destination IP through the WAN ex WAN 1 or WAN grouping users designated to th...

Page 35: ...ffic to that destination IP will be transmitted through the WAN or WAN group under China Netcom strategy 5 2 2 Network Service Detection This is a detection system for network external services If thi...

Page 36: ...hen Fail 1 Generate the Error Condition in the System Log If an ISP connection failure is detected an error message will be recorded in the System Log This line will not be removed therefore the some...

Page 37: ...automatically by the device Therefore users just need to check the option if this function is needed Attention Some gateways of an ADSL network will not affect packet detection If users have an optic...

Page 38: ...ol Binding Bandwidth Configuration Automatic load balance ratio will be made according to the upstream bandwidth users input for the two WAN ports For instance if the upstream bandwidth for both WANs...

Page 39: ...es here input the Intranet virtual IP address range for example if 192 168 1 100 150 is input the binding range will be 100 150 If only specific Service Ports need to be designated while specific IP d...

Page 40: ...twork configuration modification or click Cancel to leave without making any changes Attention The rules configured in Protocol Binding will be executed by the device according to their priority too T...

Page 41: ...utton to add the configuration into the Services List Users can add up to 100 services into the list Delete selected service To remove the selected activated Services Apply Click the Apply button to s...

Page 42: ...0 to WAN2 for the Internet As in the figure below select All Ports from the pull down option list Service and then in the boxes of Source IP input the source IP address 192 168 1 100 to 100 Retain the...

Page 43: ...0 in the boxes of Destination IP which means to include all Internet IPs addresses Select WAN2 from the pull down option list Interface and then click Enable Finally click Add New and the rule will be...

Page 44: ...2 However with only the above rule packets that do not go to Port 80 may be transmitted through WAN2 therefore a second rule is necessary The second rule Select All Ports TCP UDP 1 65535 from the pull...

Page 45: ...ion into full play Example 1 How do I set up the Assigned Routing Mode to keep all Intranet IPs from going through WAN2 when the destination is Port 80 and keep all other services from going through W...

Page 46: ...from the pull down option list Service and then in the boxes of Source IP input 192 168 1 0 0 which means to include all Intranet IPs In the boxes for Destination IP input 211 1 1 1 211 254 254 254 S...

Page 47: ...i WAN QoS Router 44 then click Enable Finally click Add New and the rule will be added to the mode After the rule has been set up all traffic that is not going to the assigned destinations will only b...

Page 48: ...ity duplex and enable disable the auto negotiation feature for connection setting of each port 6 1 Port Setup Mirror Port Users can enable Port 1 as Mirror Port All outbound traffic will be duplicated...

Page 49: ...2WAN 4LAN Medium Scale Multi WAN QoS Router 46...

Page 50: ...nd half duplex Auto Neg The Auto Negotiation mode can enable each port to automatically adjust and gather the connection speed and duplex mode Therefore if Enabled Auto Neg selected the ports setup wi...

Page 51: ...s as illustrated below Through the general message list of the Port Status the current port hardware setting items will be displayed For example there are Network Connection Type 10Base T 100Base TX 1...

Page 52: ...so forth Through the message list displaying the real time traffic of the network port the packet data of this port will be displayed Data include receive transmit packet count receive transmit packe...

Page 53: ...ion for LAN computers This function is similar to the DHCP service in NT servers It benefits users by freeing them from the inconvenience of recording and configuring IP addresses for each PC respecti...

Page 54: ...hough the default supports automatic IP acquisition for 50 computers users can increase or reduce the number according to their needs After the changes are completed click Apply to save the network co...

Page 55: ...r the administrator s reference when a network modification is needed The content of the Introduction list is as follows DHCP Server DHCP IP address Dynamic IP Used The amount of dynamic IP leased by...

Page 56: ...The actual MAC network location of the current computer Client Lease Time The lease time of the IP released by DHCP Delete To remove a record of an IP lease After the changes are completed click Apply...

Page 57: ...2WAN 4LAN Medium Scale Multi WAN QoS Router 54...

Page 58: ...2WAN 4LAN Medium Scale Multi WAN QoS Router 55...

Page 59: ...nt DHCP to assign a static IP for a PC every single time users should input the IP address users want to assign to this computer in the boxes The server or PC which is to be bound will then acquire a...

Page 60: ...Add To add new binding Block MAC address on the list with wrong IP address When this option is activated MAC addresses which are not included in the list will not be able to connect with the Internet...

Page 61: ...make an accessing rule configuration for them all at the same time instead of configuring each IP respectively which takes more time and is more prone to error Group Select a group to which the modif...

Page 62: ...priority to specific applications or services and also to enable other users to share bandwidth as well as to ensure stable and reliable network transmission To maximize the bandwidth efficiency netw...

Page 63: ...2WAN 4LAN Medium Scale Multi WAN QoS Router 60 7 1 Bandwidth Management QoS...

Page 64: ...ated in the same way After the changes are completed click Apply to save the configuration or click Cancel to leave without making any change Attention The unit of calculation in this example is Kbit...

Page 65: ...ntrolled select All TCP UDP 1 65535 If only FTP uploads or downloads need to be controlled select FTP Port 21 21 Refer to the Default Service Port Number List IP This is to select which user is to be...

Page 66: ...o guarantee minimum available bandwidth The maximum bandwidth This rule is to restrict maximum available bandwidth The maximum bandwidth will not exceed the limit set up under this rule Attention The...

Page 67: ...t The rules for certain IPs would then be moved upward Delete selected application To remove the rules selected from the Service List After the changes are completed click Apply to save the configurat...

Page 68: ...Means the download bandwidth for Intranet IP Server in LAN Upstream If a Server for external connection has been built in the device this option is to control the bandwidth for the traffic coming from...

Page 69: ...the service Enable To activate the rule Add To List To add this rule to the list Delete selected application To remove the rules selected from the Service List Show Table This will display all the Pr...

Page 70: ...2P software such as BT Thunder or emule is used in the Intranet causing large numbers of connections Setting up proper limitations on connections can effectively control the connections created by P2P...

Page 71: ...previous connection has been closed new connections cannot be made until the setting time ends If this function is selected when the user s port connections reach the limit all the lines that this us...

Page 72: ...or business can be configured to be free of the Connection Restriction Rule Service To select a Service Port to be free of the connection rule Service Management To add or remove a Service Port Sourc...

Page 73: ...be enabled You can enter the needed value the default is 60 Each IP s upstream bandwidth threshold for all WAN Input the allowed maximum threshold Each IP s downstream bandwidth threshold for all WAN...

Page 74: ...List To show the IPs with upstream constraint downstream constraint and in the penalty mechanism Applied Time If Always is selected the rule will be executed around the clock If From is selected the r...

Page 75: ...alarming function for application procedure Meanwhile the packet authentication firewall may decline the connections which use non standard communication protocol DoS Denial of Service This averts DoS...

Page 76: ...format This feature is off by default Prevent ARP Virus Attack This feature is designed to prevent the intranet from being attacked by ARP spoofing causing the connection failure of the PC This ARP v...

Page 77: ...hreshold value and the blocking duration to effectively deal with external attack The threshold value should be adjusted from high to low LAN Threshold When all packet values from internal attack or f...

Page 78: ...domain and it will not block items such as Java ActiveX Cookies contained in the web pages from the trust domains Apply Save the configuration Cancel Leave without making any change Restrict Applicat...

Page 79: ...2WAN 4LAN Medium Scale Multi WAN QoS Router 76 In the other hand if Blocked QQ is activated users can set the exempted QQ number list...

Page 80: ...Multi WAN QoS Router 77 User Name Input the information of the QQ number etc Qno Sales Exempted QQ number Input the number Add to list To add the number to the list Delete selected item Delete the sel...

Page 81: ...isable the network so as to protect all internet access The following describes the internet access rules All traffic from the LAN to the WAN is allowed by default All traffic from the WAN to the LAN...

Page 82: ...ss rule Click on Edit to define the network access rule item and press Delete to remove the item Press Add New Rule to create a new network access rule Or press Return to Default Rules to restore all...

Page 83: ...elected please enter a single IP address or an IP address within a session Dest IP Select the destination IP range such as Any Single Range or preset IP group name If Single or Range is selected pleas...

Page 84: ...Filter The device supports two webpage restriction modes one is to block certain forbidden domains and the other is to give access to certain web pages Only one of these two modes can be selected Bloc...

Page 85: ...e default setting is Disabled Domain name Enter the websites to be controlled such as www playboy com Add to list Click Add to list to create a new website to be controlled Delete selected item Click...

Page 86: ...d this new service item content to the list Delete selected item Delete the service item content from the list Apply Click Apply to save the modified parameters Cancel Click Cancel to cancel all the c...

Page 87: ...d the rule to list Delete Selected Item Users can select one or more rules and click to delete Scheduling Select Always to apply the rule on a round the clock basis Select from and the operation will...

Page 88: ...2WAN 4LAN Medium Scale Multi WAN QoS Router 85...

Page 89: ...h dual bradband connection As the result the linking problem between different ISP network will be sloved As the figure showed above Caf A has only one ISP service Because of narrow bandwidth between...

Page 90: ...enable virtual route function and link to Caf B s device They can access another ISP service through Caf B s network It seems that Caf A employ dual ISP service too If users in Caf A want to access t...

Page 91: ...tcome or Self Defined Import IP Range Click Browse to import binding IP range Binding Service Port To select the port that will execute virtual route All port Game or Self defined Import Port Range Cl...

Page 92: ...be keyed in the next line Attention Even if only one destination IP address is to be assigned it should follow the same format For example if the destination IP address is 210 66 161 54 it should be k...

Page 93: ...2WAN 4LAN Medium Scale Multi WAN QoS Router 90...

Page 94: ...esses such as network games We recommend that users map the device actual WAN IPs directly to the Intranet virtual IPs as follows If the DMZ Host function is selected to cancel this function users mus...

Page 95: ...if a web server address such as 192 168 1 50 and the Port 80 have been set up in the configuration this web page will be accessible from the Internet by keying in the device actual IP address such as...

Page 96: ...nagement Add or remove service ports from the list of service ports Add to list Add to the active service content Service Port Management The services in the list mentioned above are frequently used s...

Page 97: ...00 2310 etc Add To List Add the service to the service list Delete Selected Services To remove the selected services Apply Click the Apply button to save the modification Cancel Click the Cancel butto...

Page 98: ...coming in from the Internet to the device Such as 2004 2005 Add to list Add the service to the active service list Delete selected application To remove selected services After the changes are comple...

Page 99: ...2WAN 4LAN Medium Scale Multi WAN QoS Router 96 ICU II 2019 2000 2038 2050 2051 2069 2085 3010 3030 MSN Gaming Zone 47624 2300 2400 28800 29000...

Page 100: ...he function supports UPnP Forwarding If you want to set a virtual gateway you can use this fuction or set Forwarding introduced before Do not duplicate to configure to prevent interfering Service To s...

Page 101: ...m the management list Add To List Add to active service content Delete selected item To remove selected services Show Tables This is a list which displays the current active UPnP functions After the c...

Page 102: ...c Routing Information Protocol 10 3 1 Dynamic Routing Information Protocol The abbreviation of Routing Information Protocol is RIP There are two kinds of RIP in the IP environment RIP I and RIP II Sin...

Page 103: ...Receive RIP versions Use Up Down button to select one of None RIPv1 RIPv2 Both RIPv1 and v2 as the TX function for transmitting dynamic RIP Transmit RIP versions Use Up Down button to select one of N...

Page 104: ...as 192 168 2 1 Hop Count This is the router layer count for the IP If there are two routers under the device users should input 2 for the router layer the default is 1 Max is 15 Interface This is to s...

Page 105: ...l IP for WAN and is used in NAT Users can respectively configure the other four real IPs for Multi DMZ as follows 210 11 1 2 192 168 1 3 210 11 1 3 192 168 1 4 210 11 1 4 192 168 1 5 210 11 1 5 192 16...

Page 106: ...PC which is mapped with a LAN port will be exposed on the Internet To prevent Internet users from actively connecting with the One on One NAT server or PC please set up a proper denial rule for access...

Page 107: ...namic IP remote control For example the actual IP address of an ADSL PPPoE time based system or the actual IP of a cable modem will be changed from time to time To overcome this problem for users who...

Page 108: ...sfer functions User Name The name which is set up for DDNS Input a complete website address such as abc qnoddns org cn as a user name for QnoDDNS Password The password which is set up for DDNS Host Na...

Page 109: ...egistering Qno DDNS 1 First go to Qno s web site http www qno com tw to register the product 2 Input the e mail address which users used to register this product and the product s serial number to log...

Page 110: ...owercase letter and 0 9 numerals and the first character should be an English letter The Domain name should not contain special symbols such as _ etc For products with two WANs users can apply no more...

Page 111: ...2WAN 4LAN Medium Scale Multi WAN QoS Router 108...

Page 112: ...on is to be edited click the hyperlink to enter and edit its configuration Interface This is an indication of the WAN port the user selects Check the option to activate or disable this function User D...

Page 113: ...ystem tools ports and security settings This chapter introduces operation methods of some tools port management and network security settings These settings facilitate user management of the device an...

Page 114: ...n Name Inquiry Test and Ping Packet Delivery Reception Test Domain Name Inquiry Test DNS Name Lookup On this test screen please enter the host name of the network users want to test For example users...

Page 115: ...lti WAN QoS Router 112 to know the existence of computers online On this test screen please enter the host IP that users want to test such as 192 168 5 20 Press Go to start the test The result will be...

Page 116: ...firmware on the Firmware Upgrade page Please confirm all information about the software version in advance Select and browse the software file click Firmware Upgrade Right Now to complete the upgrade...

Page 117: ...arameter settings into the device Before upgrade confirm all information about the software version Select and browse the backup parameter file config exp Select the file and click Import to import th...

Page 118: ...tant network management item Through this SNMP communications protocol programs with network management i e SNMP Tools HP Open View can help communications of real time management The device supports...

Page 119: ...of the group or community that can view the device SNMP data The default setting is Public Set Community Name Set the name of the group or community that can receive the device SNMP data The default...

Page 120: ...very Restart Click Restart Router to start it again This operation message will then be recorded in system log Press Reset on the device panel to reset manually Press Reset and hold for 5 seconds and...

Page 121: ...lternatively users may press Reset button on the device to manually restore the default value and clear all settings including port configures password setting and etc Press Reset and hold for more th...

Page 122: ...2WAN 4LAN Medium Scale Multi WAN QoS Router 119 12 Log From the log management and look up we can see the relevant operation status which is convenient for us to facilitate the setup and operation...

Page 123: ...2WAN 4LAN Medium Scale Multi WAN QoS Router 120 12 1 System Log Its system log offers three options Syslog Server E mail Alert and Log Setting...

Page 124: ...ettings unchanged E mail Alert Enabled If this option is selected E mail Alert will be enabled Mail Server If users wish to send out all the logs please enter the E mail server name or the IP address...

Page 125: ...ransmitted on the network After they access the information the IP address from the sender is changed so that they can access the resource in the source system Win Nuke Servers are attacked or trapped...

Page 126: ...s message will be sent back to the system log Authorized Login Successful entry into the system includes login from the remote end or from the LAN into this device These messages will be recorded in t...

Page 127: ...Packet Log View system packet log of those entering the firewall The log includes information about the external source IPs destination IPs and service ports It is illustrated as below Clear Log Now T...

Page 128: ...as port location device name current WAN link status IP address MAC address subnet mask default gateway DNS number of received sent total packets number of received sent total Bytes Received and Sent...

Page 129: ...2WAN 4LAN Medium Scale Multi WAN QoS Router 126...

Page 130: ...l be displayed on the Traffic Statistic page to provide better traffic management and control By Onbound IP Address The figure displays the source IP address bytes per second and percentage By Iutboun...

Page 131: ...P address bytes per second and percentage By Inbound Port The figure displays the network protocol type destination IP address bytes per second and percentage By Inbound Session The figure displays th...

Page 132: ...N Medium Scale Multi WAN QoS Router 129 By Outbound Session The figure displays the source IP address network protocol type source port destination IP address destination port bytes per second and per...

Page 133: ...WAN port rather than Multi WAN Administrators may find out the destination IP for protocol binding to solve this login problem For example when certain port software is denied inquiring about the IP...

Page 134: ...2WAN 4LAN Medium Scale Multi WAN QoS Router 131 Service Port Enter the service port number in the field and IP that are currently used by this port will be displayed...

Page 135: ...oS Router 132 13 Log Out On the top right corner of the web based UI there is a Logout button Click on it to log out of the web based UI To enter next time open the Web browser and enter the IP addres...

Page 136: ...ix 1 TroubleShooting 1 Block Basic BT Download Method To block BT and prevent downloading by users go to the Firewall Content Filter and select Enable Website Block by Keywords followed by the input o...

Page 137: ...iruses recently the internet transmission speed was brought down and the Session bulky increase result in the massive processing load of the device The following guides users to block this virus corre...

Page 138: ...2WAN 4LAN Medium Scale Multi WAN QoS Router 135 Use the same method to add UDP UDP135 139 and TCP 445 445 Ports c Enhance the priority level of these three to the highest...

Page 139: ...set up the device a Log into the device web based UI and enter Firewall Access Rule b Click Add New Rule under Access Rule page Select Deny in Action under the Service rule setting followed by the sel...

Page 140: ...it mirrors to other devices of the network only devices of this affected network have problems This happens mostly to legendary games especially those with private servers Evidently the network is att...

Page 141: ...09 So Host A knows the MAC address of Host B and it can send data to Host B Meanwhile it will update its ARP cache Moreover ARP virus attack can be briefly described as an internal attack to the PC wh...

Page 142: ...RP Diagnosis If one or more computers are affected by the ARP virus we must learn how to diagnose and take appropriate measures The following is experience shared by Qno technical engineers with regar...

Page 143: ...from being attacked The general solution provided by Qno can be divided into the following three options a Enable Prevent ARP Virus Attack Enter the device IP address to log in the management webpage...

Page 144: ...ter LAN IP Router LAN MAC For those internal network attacked by Arp the source must be identified Method If the PC fails to go online or there is packet loss of ping in the DOS screen input arp a com...

Page 145: ...list the corresponding message will be displayed in the white block on the bottom However such method is not recommended because the inquiry of IP MAC addresses of all hosts creates heavy workload An...

Page 146: ...box the unbinding IP and MAC address corresponding to the PC are displayed Enter the Name of the computer and click on Enabled with the display of the icon and push the option on the top right corner...

Page 147: ...the source device affected by virus through virus killing and the system re installation This operation is more important because it solves the source PC which is attacked by ARP This can better shel...

Page 148: ...work firewall and other measures for protection 6 Close some unnecessary services and some unnecessary sharing if the condition is applicable which includes such management sharing as C and D Single d...

Page 149: ...e Qno s bandwidth forum refer to the examples of the FTP server or contact the technical department of Qno s dealers as well as the Qno s technical center Qno Official Web Site http www Qno com tw Dea...

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