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10.3. DoS (Denial of Service)

The Broadband router's firewall can block common hacker attacks, including Denial

of Service, Ping of Death, Port Scan and Sync Flood. If Internet attacks occur the

router can log the events.

Ping of Death: Protections from Ping of Death attack.

Discard Ping From WAN: The router’s WAN port will not respond to any Ping

requests

Port Scan: Protects the router from Port Scans.

Sync Flood: Protects the router from Sync Flood attack.

10.4. MAC Filter

If you want to restrict users from accessing certain Internet applications / services

(e.g. Internet websites, email, FTP etc.), and then this is the place to set that

configuration. MAC Filter allows users to define the traffic type permitted in your LAN.

You can control which PC client can have access to these services.

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Содержание ERB9250

Страница 1: ...ERB9250 300Mbps Wireless N Range Extender User Manual Version 1 0 ...

Страница 2: ...G 14 5 SMART WIZARD 16 6 INITIAL SETUP ERB9250 18 7 SYSTEM 20 7 1 OPERATION MODE 20 7 2 STATUS 20 7 3 EVENT LOG 21 7 4 MONITOR 22 7 5 DHCP CR MODE 22 7 6 SCHEDULE CR MODE 23 8 WIRELESS 25 8 1 STATUS 25 8 2 BASIC 25 8 3 ADVANCED 27 8 4 SECURITY 28 8 4 1 WEP ENCRYPTION 29 8 4 2 WPA PRE SHARED KEY ENCRYPTION 30 8 5 FILTER 31 8 6 CLIENT LIST 32 8 7 WPS 32 8 8 AP PROFILE CB CR MODE 32 9 NETWORK 33 9 1 ...

Страница 3: ... ALG 45 11 6 UPNP 45 11 7 QOS 46 11 8 STATIC ROUTING 49 11 9 DYNAMIC ROUTING 50 11 10 ROUTING TABLE 50 12 MANAGEMENT 50 12 1 ADMIN 50 12 2 FIRMWARE 51 12 3 CONFIGURE 51 12 4 RESET 52 13 TOOLS 52 13 1 TIME SETTING 52 13 2 DDNS CR MODE 54 13 3 DIAGNOSIS 55 14 LOGOUT 56 APPENDIX A FCC INTERFERENCE STATEMENT 57 APPENDIX B IC INTERFERENCE STATEMENT 58 ...

Страница 4: ...ulti Output technology to transmit multiple steams of data in a single wireless channel giving you seamless access to multimedia content Robust RF signal travels farther eliminates dead spots and extends network range For data protection and privacy ERB9250 encodes all wireless transmissions with WEP WPA and WPA2 encryption 1 1 Package Contents Open the package carefully and make sure that none of...

Страница 5: ...5 1 2 Product Layout LED Description LAN 1 Link blue on traffic blink WLAN 1 Link blue on traffic blink Power Status 1 On red Test reset default blink ...

Страница 6: ...xisting AP Router PC Notebook Operating System Microsoft Windows 98SE ME XP 2000 VISTA 1 Free Ethernet port WiFi card USB dongle 802 11b g n optional External xDSL ADSL or Cable modem with an Ethernet port RJ 45 PC with a Web Browser Internet Explorer Safari Firefox Opera etc Few Ethernet compatible CAT5 cables ...

Страница 7: ... configure your PC Notebook Ethernet card IP address before device configuration 2 1 PC Network Adapter setup Windows XP Enter Start Menu select Control panel select Network Select Local Area Connection icon select properties ...

Страница 8: ...8 Select Internet Protocol TCP IP Click Properties Select the General tab ERB9250 supports DHCP function please select both Obtain an IP address automatically and Obtain DNS server address automatically ...

Страница 9: ...nnect the supplied power adapter to the power inlet port and connect it to a wall outlet Then ERB9250 automatically enters the self test phase Once WLAN LED is on and blinking randomly to indicate that it is in normal operation ...

Страница 10: ...e it is not occupied by any other devices Power On Connect the supplied power adapter to the power inlet port and connect it to a wall outlet Then ERB9250 automatically enters the self test phase Once WLAN LED is on and blinking randomly to indicate that it is in normal operation 3 1 One Touch Setup Extender 1 Make sure your AP Router WPS function is enabled some router may require you to press WP...

Страница 11: ...rt one touch setup function Please configure your extender manually 3 2 Manual Configuration 1 It is advised to configure your extender through Ethernet cable You may need to disconnect other network connections to avoid confusion 2 Connect your Ethernet port to the extender RJ45 Ethernet port with the cable included in the package 3 Configure your computer network interface to IP address 192 168 ...

Страница 12: ...a list of available APs 10 Select your target AP and click on Connect 11 Enter the access key for the target AP and click on Save 12 Pop up box showing the connection established between AP and the extender 13 On the extender status page you should see AP security information being cloned here ...

Страница 13: ...13 ...

Страница 14: ...an 30 considered suitable You can place ERB9250 on a desk or other flat surface or you can mount it on a wall For optimal performance place your extender within the coverage of your existing AP from which the signal you would like to extend Like any other wireless device it must be away from any potential source of interference such as a metal wall or microwave oven This location must be close to ...

Страница 15: ...15 between the two nails is 89mm Finally carefully mount the device onto the wall and make sure the nails are firmly locked on the mount points Recommended Screw Dimension 18mm x 5mm ...

Страница 16: ...16 5 Smart Wizard Please insert the Wizard CD into your CD ROM driver If you are using MacOS or other operation system please browse your CD and click on index html to start Smart Wizard ...

Страница 17: ...ck Setup Click on Manual Setup if your AP does not support WPS button or Quick Setup does not work on your AP Click User Manual to view user manual Click on Adobe Reader to install PDF reader Please follow the instructions given on the screen to proceed ...

Страница 18: ...d through your web browser such as Internet Explorer or Firefox 1 OPEN your browser e g Internet Explorer Type http 192 168 1 2 in address bar and hit Enter button on your keyboard Click OK to navigate into ERB9250 configuration home page You will see the home page of ERB9250 as follows ...

Страница 19: ...19 ...

Страница 20: ...se do not use this mode Client Bridge is not an AP extender but an Ethernet Wireless Extender CB serves as a bridge between wired network and wireless network Once enabled you can only access the device through Ethernet cable For Client Bridge mode you can choose whether to enable router mode Router mode will enable NAT and DHCP server Please disable router mode if you are not familiar with these ...

Страница 21: ... occurred after system start up At the bottom of the page the system log can be saved Save to a local file for further processing or the system log can be cleared Clear or it can be refreshed Refresh to get the most updated information When the system is powered down the system log will be cleared if not saved to a local file ...

Страница 22: ...nnection on WAN LAN WLAN Auto refresh keeps information updated frequently 7 5 DHCP CR Mode View the current LAN clients which are assigned with an IP Address by the DHCP server This page shows all DHCP clients LAN PCs currently connected to your ...

Страница 23: ...it Refresh to get the updated table You can check Enable Static DHCP IP It is possible to add more static DHCP IPs They are listed in the table Current Static DHCP Table IP address can be deleted at will from the table Click Apply button to save the changed configuration 7 6 Schedule CR Mode This page allows users to set up schedule function for Firewall and Power Saving ...

Страница 24: ...24 Edit schedule options to allow configuration of firewall and power savings services Fill in the schedule and select type of service Click Apply to keep the settings ...

Страница 25: ...ireless radio If wireless Radio is off you cannot associate with AP through wireless Mode In this device we support three operation modes which are AP router and AP route with WDS If you choose AP Router Mode you can select AP or WDS function in the drop down menu ...

Страница 26: ... 11b or 802 11g wireless devices are in your environment 2 4 GHz G If all your clients are 802 11g select this one 2 4 GHz B G N Either 802 11b 802 11g or 802 11n wireless devices are in your environment Channel Shows current target AP wireless channel Site Survey scan for current existing APs To connect to the chosen AP click on the AP radio button and then click Connect See Chapter 6 or 11 4 for...

Страница 27: ... Beacon Interval This is the interval of time that this wireless router broadcasts a beacon A Beacon is used to synchronize the wireless network DTIM Period Enter a value between 1 and 255 for the Delivery Traffic Indication Message DTIM A DTIM is a countdown informing clients of the next window for listening to broadcast and multicast messages Data Rate The Data Rate is the rate that this access ...

Страница 28: ...chanism can decrease the rate of data collision between 802 11b and 802 11g wireless stations When the protection mode is enabled the throughput of the AP will be a little lower due to a lot of frame network that is transmitted TX Power This can be set to a bare minimum or maximum power 8 4 Security This Access Point provides complete wireless LAN security functions included are WEP IEEE 802 1x IE...

Страница 29: ... supports QoS for experiencing better audio video and voice in applications Encryption When you choose to disable encryption it is very insecure to operate ERB9250 8 4 1 WEP Encryption When you select 64 bit or 128 bit WEP key you have to enter WEP keys to encrypt data You can generate the key by yourself and enter it You can enter four WEP keys and select one of them as a default key Then AP can ...

Страница 30: ...ess network Use the following rules to setup a WEP key on the device 64 bit WEP input 10 digits Hex values in the A F a f and 0 9 range or 5 digit ASCII character as the encryption keys 128 bit WEP input 26 digit Hex values in the A F a f and 0 9 range or 13 digit ASCII characters as the encryption keys Click Apply at the bottom of the screen to save the above configurations 8 4 2 WPA Pre Shared K...

Страница 31: ...n click Add The wireless station will now be added into the MAC Address Filtering Table below If you are having any difficulties filling in the fields just click Reset and both MAC Address and Description fields will be cleared Remove an address from the list If you want to remove a MAC address from the MAC Address Filtering Table select the MAC address that you want to remove in the list and then...

Страница 32: ...rface allows you to activate client WPS and synchronize with other AP Click Start to Process to initiate WPS process It serves the same purpose as the WPS button on the device 8 8 AP Profile CB CR Mode This page allows you to edit your AP profiles ERB9250 allows you to keep multiple AP candidates AP on the top of the list has higher precedence than those on the bottom ...

Страница 33: ... key enter the key of for security setting Click Move Up to move the record up Click Move Down to move the record down Click Delete Selected to remove the chosen profile Click Delete All to remove all profiles Click Connect to activate the chosen AP profile 9 Network 9 1 Status IP address current IP address of the device IP Subnet Mask 255 255 255 0 MAC Address MAC address of the device Ethernet p...

Страница 34: ...1d Spanning Tree This is disabled by default If 802 1d Spanning Tree function is enabled this router will use the spanning tree protocol to prevent network loops 10 Firewall CR Mode 10 1 Enable The Broadband router provides extensive firewall protection by restricting connection parameters thus limiting the risk of hacker attacks and defending against a wide array of common Internet attacks Howeve...

Страница 35: ...tween the virtual server and the DMZ function is that the virtual server re directs a particular service Internet application e g FTP websites to a particular LAN client server whereas DMZ re directs all packets regardless of services from your WAN IP address to a particular server or client Enable DMZ Enable disable DMZ LAN IP Address Fill in the IP address of a particular host in your LAN Networ...

Страница 36: ...AN The router s WAN port will not respond to any Ping requests Port Scan Protects the router from Port Scans Sync Flood Protects the router from Sync Flood attack 10 4 MAC Filter If you want to restrict users from accessing certain Internet applications services e g Internet websites email FTP etc and then this is the place to set that configuration MAC Filter allows users to define the traffic ty...

Страница 37: ...MAC Address and Description of the PC that is allowed denied to access the Internet and then click Add If you find any typo before adding it and want to retype again just click Reset and the fields will be cleared Remove PC MAC Address If you want to remove some PC from the MAC Filtering Table select the PC you want to remove in the table and then click Delete Selected If you want to remove all PC...

Страница 38: ...n all clients will be denied to access Internet except for the PCs in the list below Add PC IP Address You can click Add PC to add an access control rule for users by an IP address or IP address range Remove PC IP Address If you want to remove some PC IP from the IP Filtering Table select the PC you want to remove in the table and then click Delete Selected If you want to remove all PCs from the t...

Страница 39: ...pen to make a mistake and want to retype again just click Reset and the field will be cleared Remove URL Keyword If you want to remove some URL keywords from the Current URL Blocking Table select the URL keyword you want to remove in the table and then click Delete Selected If you want remove all URL keywords from the table click Delete All button If you want to clear the selection and re select a...

Страница 40: ... multiple Public IP Addresses NAT provides Firewall protection from hacker attacks and has the flexibility to allow you to map Private IP Addresses to Public IP Addresses for key services such as Websites and FTP Select Disable to disable the NAT function 11 2 Port Mapping Port Mapping allows you to re direct a particular range of service port numbers from the Internet WAN Port to a particular LAN...

Страница 41: ...nge of ports to be forward to the private IP Add Port Mapping Fill in the Local IP Protocol Port Range and Description of the setting to be added and then click Add Then this Port Mapping setting will be added into the Current Port Mapping Table below If you find any typo before adding it and want to retype again just click Reset and the fields will be cleared Remove Port Mapping If you want to re...

Страница 42: ...ers use numbers called port numbers to recognize a particular service Internet application type The Virtual Server allows you to re direct a particular service port number from the Internet WAN Port to a particular LAN private IP address See Glossary for an explanation on Port number Enable Port Forwarding Enable or disable Port Forwarding Description The description of this setting Local IP Local...

Страница 43: ... again just click Reset and the fields will be cleared Remove Port Forwarding If you want to remove Port Forwarding settings from the Current Port Forwarding Table select the Port Forwarding settings you want to remove in the table and then click Delete Selected If you want to remove all Port Forwarding settings from the table just click the Delete All button Click Reset will clear your current se...

Страница 44: ...col type TCP UDP or BOTH Popular Applications This section lists the more popular applications that require multiple connections Select an application from the Popular Applications selection Once you have selected an application select a location 1 5 in the Add selection box and then click the Add button This will automatically list the Public Ports required for this popular application in the loc...

Страница 45: ...ble and then click Delete Selected If you want remove all Port Triggering settings from the table just click the Delete All button Click Reset will clear your current selections 11 5 ALG Application Layer Gateway ALG You can select applications that need ALG support The router will let the selected application to correctly pass through the NAT gateway 11 6 UPnP With UPnP all PCs in you Intranet wi...

Страница 46: ... you classify Internet application traffic by source destination IP address and port number You can assign priority for each type of application and reserve bandwidth for it The packets of applications with higher priority will always go first Lower priority applications will get bandwidth after higher priority applications get enough bandwidth This can let you have a better experience in using cr...

Страница 47: ...ed in the QoS limitation High Low Priority Queue This can put the packets in the protocol and port range to High Low QoS Queue Bandwidth Allocation This can reserve limit the throughput of specific protocols and port range You can set the upper bound and Lower bound ...

Страница 48: ...acket type The default ALL will put all packets in the QoS priority Queue Port range Specify the Port range You could also fill one Port Policy Specify the policy the QoS Min option will reserve the selected data rate in QoS queue Max option will limit the selected data rate in QoS queue Rate The data rate of QoS queue Disabled This could turn off QoS feature ...

Страница 49: ...estination LAN IP Specify the destination LAN IP address of static routing rule Subnet Mask Specify the Subnet Mask of static routing rule Default Gateway Specify the default gateway of static routing rule Hops Specify the Max Hops number of static routing rule Interface Specify the Interface of static routing rule ...

Страница 50: ...ting Table The page shows the device routing table 12 Management 12 1 Admin You can change the password required to log into the broadband router s system web based management By default the password is admin Passwords can contain 0 to 12 alphanumeric characters and are case sensitive ...

Страница 51: ...mware This page allows you to upgrade the router s firmware To upgrade the firmware of your Broadband router you need to download the firmware file to your local hard disk and enter that file name and path in the appropriate field on this page You can also use the Browse button to find the firmware file on your PC Once you ve selected the new firmware file click Apply at the bottom of the screen t...

Страница 52: ...e problems occur you can use the Restore to Factory Defaults to set all configurations to its original default settings 12 4 Reset Click on Apply to reset to default 13 Tools 13 1 Time Setting The Time Zone allows your router to reference or base its time on the settings configured here which will affect functions such as Log entries and Firewall settings Time Setup Synchronize with the NTP server...

Страница 53: ...Server Daylight Savings The router can also take Daylight Savings into account If you wish to use this function you must select the Daylight Savings Time period and check tick the enable box to enable your daylight saving configuration Click Apply at the bottom of the screen to save the above configurations Synchronize with PC You could synchronize timer with your Local PC time ...

Страница 54: ...ime period and check tick the enable box to enable your daylight saving configuration Click Apply at the bottom of the screen to save the above configurations 13 2 DDNS CR Mode DDNS allows you to map the static domain name to a dynamic IP address You must get an account password and your static domain name from the DDNS service providers This router supports DynDNS TZO and other common DDNS servic...

Страница 55: ...n your static domain name that uses DDNS Username The account that your DDNS service provider assigned to you Password The password you set for the DDNS service account above Click Apply at the bottom of the screen to save the above configurations 13 3 Diagnosis This page allows you to test your network Type in the address for diagnosis ...

Страница 56: ...56 14 Logout Click on Logout button to logout ...

Страница 57: ...rease the separation between the equipment and receiver Connect the equipment into an outlet on a circuit different from that to which the receiver is connected Consult the dealer or an experienced radio TV technician for help This 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 and 2 this device mu...

Страница 58: ...ence that may cause undesired operation IMPORTANT NOTE Radiation Exposure Statement This equipment complies with IC radiation exposure limits set forth for an uncontrolled environment This equipment should be installed and operated with minimum distance 20cm between the radiator your body This device has been designed to operate with an antenna having a maximum gain of 2 dBi Antenna having a highe...

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