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DSL542EU ADSL Router User’s Manual 

 
 

 

26

5.3.11 IDS 

This page displays the settings of IDS (Intrusion Detection System). It allows you to enable or 
disable IDS and configure some detail parameters to protect your system and network. 

 

 

 
If you want the Router to maintain a blacklist, enable 

Use Blacklist

. The built-in victim 

protections prevent the types of attack such as IP Spoofing, Tear Drop, Land Attach and Ping 
of Death. 
 
Computer hackers use what is known as “Pinging” to find potential victims on the Internet. 
The Router can be set up so it will respond to an ICPM Ping from outside just within a limited 
times. 
 
 

Summary of Contents for DSL542EU

Page 1: ...T D DA AT TA A P PR RO OD DU UC CT TS S I IN NC C D DS SL L5 54 42 2E EU U D DS SL L5 58 82 2E E A AD DS SL L2 2 2 2 R Ro ou ut te er r M Mo od de em m U Us se er r s s M Ma an nu ua al l Revision 2 0 October 2004 ...

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Page 3: ...r makes no representations or warranties expressed statutory or implied regarding the fitness or merchantability of this product for any particular purpose Further the manufacturer is not liable for any damages including but not limited to lost profits lost saving or other incidental or consequential damages arising out of the use of this product The manufacturer also reserves the right to make an...

Page 4: ... must be used with the unit to insure compliance This statement can be deleted if unit was not tested with shielded cables The manufacture is not responsible for any radio or TV interference caused by unauthorized modifications to this equipment Such modifications could void the user s authority to operate the equipment This device complies with Part 15 of the FCC rules Operation is subject to the...

Page 5: ...11 5 2 2 WAN Information 12 5 2 3 LAN Information 12 5 2 4 ADSL Information 13 5 2 5 DHCP Information 13 5 2 6 Route Information 14 5 3 CONFIGURATION 14 5 3 1 WAN 15 5 3 2 LAN 19 5 3 3 ADSL 19 5 3 4 DNS Server 20 5 3 5 SNTP 20 5 3 6 DHCP Server Relay 21 5 3 7 Routing Table 23 5 3 8 Virtual Server 24 5 3 9 IP Filter 25 5 3 10 Port Filter 25 5 3 11 IDS 26 5 4 TOOLS 27 5 4 1 Ping 27 5 4 2 OAMLoopback...

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Page 7: ...h a 4 or 8 Port 10 100 Ethernet Switch Connects multiple PCs to the Internet with just one WAN IP Address when configured in router mode with NAT enabled Configurable through user friendly web pages Supports IPSec and PPTP Pass Through for Virtual Private Network VPN Configurable as a DHCP Server on Your Network Compatible with virtually all standard Internet applications Simple web based status p...

Page 8: ...To reset the Router simply press the reset button for more than 5 seconds The Router will be reset to its factory defaults and after about 20 30 seconds the Router will become operational again DC 9V Connect the power adapter that came with the Router Using a power supply with a different voltage rating will damage this product Make sure to observe the proper power requirements The power requireme...

Page 9: ...N connection is established DATA The LED flashes to indicate the Router is sending receiving data LAN 1 4 or 1 8 The LED stays lighted when a connection is established to LAN port and flashes when LAN port is sending receiving data The number of LAN ports depends on your model USB optional The LED is lighted when a connection is established to USB port and flashes when USB port is sending receivin...

Page 10: ...end of the provided phone cable to the port labeled ADSL on the rear panel of the device Connect the other end to your wall phone jack Step 2 Connect the Ethernet cable Attach one end of a provided Ethernet cable to a PC and the other to the LAN port on the rear panel of Router Step 3 Attach the power connector Connect the AC power adapter to the power connector labeled DC 9V on the back of the de...

Page 11: ...ddress The web configuration page will appear 4 1 Quick Configuration The Quick Configuration page displays DSL Line Status PPP Status PPP IP Address of PPP and PPP Up Time Due to the default configuration is RFC1483 Bridge mode you cannot do anything at the page If you need to make some advanced configuration click the Advanced Configuration link A new window appears prompting you for user name a...

Page 12: ...vider Press Next button and follow the introduction to complete the configuration procedure You will be asked to enter some information to perform the connection This information should be provided to you by your ISP Step 1 Select a suitable SNTP Server and Time Zone of your location to keep your Router synchronizes with the time server Step 2 Select actual mode that your service provider used ...

Page 13: ...DSL542EU ADSL Router User s Manual 7 ...

Page 14: ...e mode at previous step If you choose PPPoE or PPPoA you will need to fill user name and password column If you choose Routing mode you need to input WAN IP Netmask Gateway and DNS Step 4 Summary page displays all parameter you configured ahead to let you reconfirm these settings are correct ...

Page 15: ...DSL542EU ADSL Router User s Manual 9 Step 5 Click Apply button system will save your configuration to Flash ROM automatically ...

Page 16: ...nd password enter the default value admin for both 5 1 Quick Start Quick Start page displays the configuration of current Running Mode Select the suitable mode for your Router as instructed by your ISP at this page The Router supports 1483 Bridged 1483 Routed 1577 Routed PPPoA PPPoE and NAPT Bridged also called MER After select the mode at drop down menu click the Apply and Save button All detail ...

Page 17: ... 2 Information Information menu provides you with the current status of Device WAN LAN and ADSL 5 2 1 Device Information This page displays the basic device information including DSP Version Firmware Version CPE end Interface and MAC address ...

Page 18: ...the WAN information including PVC VPI VCI Protocol WAN IP Address NAT and Packets has been sent and received 5 2 3 LAN Information This page displays the LAN information including Ethernet IP Address Link Seed Broadcast times Collisions times and Packets has been sent and received ...

Page 19: ...n such as Connected State Upstream Rate Downstream Rate Standard Coding Gain etc 5 2 5 DHCP Information This page displays DHCP clients that request IP from DHCP server when DHCP server is enabled It shows the DHCP clients information including its IP Address Computer Name MAC Address and Lease Time ...

Page 20: ... table will show the routing status of Destination Netmask Gateway and Interface 5 3 Configuration Configuration menu provides you with a user friendly interface to configure detail settings of WAN LAN ADSL DNS Server SNTP DHCP Server Relay Routing Table Virtual Server IP Filter Port Filter and IDS Intrusion Detection System ...

Page 21: ...splays current running mode of WAN You can change the ATM WAN PPP settings or create a new mode on the same page You can re edit or delete an existed WAN configuration or create new WAN connection settings by click Create button to bring out the window as below ...

Page 22: ...SP provides it to you enter it here Idle timeout You may select either Always On or Dial On Demand When Dial On Demand is selected the connection will disconnect if no activity is detected after the specified Dial On Demand value in minutes Keep alive time This value specifies the time to check line connection status after disconnecting from ISP System will not check line connection if set this va...

Page 23: ... After unchecking the routing mode entry the port will become assignable Please note that every time you add a new PVC or change the PVC Port Mapping and click Apply button switch will reset its settings That may be a pause between your Network Interface Card and Router Sometimes the web page cannot get the response and return page not found If so click WAN link which locates at left menu after cl...

Page 24: ...port 2 LAN 2 is assigned to both 0 34 and 0 35 PVC Port 4 LAN 4 is assigned to PVC4 PVC8 And assign port 3 LAN 3 nothing After assign port 3 LAN 3 to PVC2 port 2 LAN 2 and port 3 LAN 3 belong to the same group So the check box of PVC3 will be checked automatically ...

Page 25: ...rrent IP Address and Subnet Mask of LAN You can change the default LAN IP address and Subnet Mask according to your needs 5 3 3 ADSL This page displays ADSL standard and EC FDM mode DO NOT change the default settings of this page unless you have the instruction from the ISP ...

Page 26: ...ervices server s Enter the IP address when DNS Server is assigned by the ISP 5 3 5 SNTP This page displays the settings of SNTP Simple Network Time Protocol It allows you to configure SNTP server location and some parameter to synchronize correct time You can also use system clock on your own computer to obtain the time ...

Page 27: ...t of 254 Hence the max value for default is 192 168 1 254 If the DHCP server runs out of DHCP addresses you will not get access to network resources If this happens you can increase the Ending IP address to the limit of 255 or reduce the lease time Note If you change the starting or ending values make sure the values are still within the same subnet as the Router s IP address In other words if the...

Page 28: ...DSL542EU ADSL Router User s Manual 22 DHCP also allows you to setup fixed IP for specified MAC address The mapped PC will always obtain the same IP address from DHCP server ...

Page 29: ...estination Destination IP is the address of the remote LAN network or host to which you want to assign a static route Enter the IP address of the host for which you wish to create a static route here Netmask Netmask identifies which portion of an IP address is the network portion and which portion is the host portion For a full Class C Subnet the Netmask is 255 255 255 0 Gateway Gateway IP address...

Page 30: ...pplication vendor to find out which port settings you need ID It is the ID number corresponding to the Virtual Server configuration Virtual Server IP Virtual Server IP allows you to enter the local IP address for the particular server Start Port Start Port allows you to enter the port number of Public Network WAN or external network If you are entering a range of ports this is the first port End P...

Page 31: ...ow specified IP You can create your block allow list to selectively allow traffic pass in and out of your network 5 3 10 Port Filter This page displays the settings of Port Filter It is another security function which provides four security levels Block Low Medium High You can choose one of level and then editing your suitable security policy ...

Page 32: ...t your system and network If you want the Router to maintain a blacklist enable Use Blacklist The built in victim protections prevent the types of attack such as IP Spoofing Tear Drop Land Attach and Ping of Death Computer hackers use what is known as Pinging to find potential victims on the Internet The Router can be set up so it will respond to an ICPM Ping from outside just within a limited tim...

Page 33: ...the network Type the target address that you want to pin If you have your PC connected to the Router via the default DHCP configuration you should be able to ping the network address 192 168 1 1 If your ISP has provided their server address you can try to ping the address If the pings for both the WAN and the LAN side complete and you have the proper protocols configured you should be able to surf...

Page 34: ... Network This test may take a few seconds to complete To perform the test select your connection from the drop down list and press the Apply button Before running this test make sure you have a valid DSL link If the DSL link is not connected this test will always fail Also the DSLAM must support this feature not all DSLAMs have F4 and F5 support ...

Page 35: ... Router or simply reboot the Router without saving changes Changes will not take effect until the configurations are saved and the Router is rebooted If power is lost before saving all new configurations since the last save will be lost even if they were apply If you ever change any setting Config Not Save message will appear Remind user to save configuration after modify any settings Click on the...

Page 36: ...llows you to restart the system or reset the system to factory default settings Sometimes it may be necessary to restart or reboot the Router If you have not saved your configurations the Router will revert back to the previously saved configuration upon restarting ...

Page 37: ...rmware click Browse select the location of the software upgrade file on your PC Make sure this is the correct file and click on Update Once the upgrade is complete the Router will reboot You will need to log back onto the Router after the firmware upgrade is complete The firmware upgrade would take several minutes to complete DO NOT power off the Router during the firmware upgrade procedure ...

Page 38: ...r password and keep it in a safe place as you will need it if you need to log into the Router in the future If you forget your password you can press and hold the reset to factory defaults button for 10 seconds or more The Router will reset to its factory default configuration and all custom configurations will be lost 5 5 5 Config File This page allows you to restore a previously saved configurat...

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Page 40: ...ctly I cannot connect to the Router 1 Check to see that the POWER LED is green and that the network cables are installed correctly see the Quick Installation Guide for more details 2 Make sure you are not connecting the USB and the Ethernet port at the same time You must only use 1 interface at a time 3 Make sure that your PC and the Router is on the same network segment The Router s default IP ad...

Page 41: ... on The LAN LED is always off 1 Make sure the Ethernet cable RJ 45 is securely plugged into the back panel of the Modem and the other end into PC I cannot login the system 1 Re enter the default user name and password 2 Re enter the modified user name and password that you did before 3 If you forget the password press the reset button for 5 seconds This will reset the Router to its factory default...

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