User manual COMTREND CT-5071E

[. . . ] CT-5071E ADSL2+ Ethernet Router User's Manual Version A4. 0, May 07, 2007 261063-011 Preface This manual provides information to network administrators. It covers the installation, operation and applications of the ADSL router. The reader reading this manual is presumed to have a basic understanding of telecommunications. For product update, new product release, manual revision, software upgrade, technical support, etc. , visit Comtrend Corporation at http://www. comtrend. com This document is subject to change without notice. Warning Before servicing or disassembling this equipment, always disconnect all power and telephone lines from the device. Specification of the power supply is clearly stated in Appendix B Specifications. Recycling For The Environment Never throw your electronic equipment out with household waste. [. . . ] The remote DHCP server will provide the IP address. 30 To configure a secondary IP address for the LAN port, click the box as shown here. Note 1: Enable DHCP Server Relay will not display if NAT is enabled in the previous step. Note 2: The router's default IP address is 192. 168. 1. 1 and the default private address range provided by the ISP server in the router is 192. 168. 1. 2 through 192. 168. 1. 254. Click Next to display the WAN Setup-Summary screen that presents the entire configuration summary. After clicking Save/Reboot, the router will save the configuration to the flash memory, and reboot. After the system is up, the Web UI will refresh to the Device Info page automatically. The CT-5071E is ready for operation and the LEDs display as described in the LED description tables. 31 5. 2. 2 MAC Encapsulation Routing (MER) To 1. Enter the PVC Index provided by the ISP and click Next and click Next Select the MAC Encapsulation Routing (MER) radio button, and click Next. The following screen appears. Enter information provided to you by your ISP to configure the WAN IP settings. Notice: DHCP can be enabled for PVC in MER mode if Obtain an IP address automatically is chosen. Configuring them with static values will disable the automatic assignment from DHCP or other WAN connection. If you configure static default gateway over this PVC in MER mode, you must enter the IP address of the remote gateway in the "Use IP address". The ISP should provide the values that must be entered in the entry fields. 32 4. Click Next to display the following screen appears. Enable NAT checkbox: If the LAN is configured with a private IP address, the user should select this checkbox. The NAT submenu on the left side main panel will be displayed after reboot. The user can then configure NAT-related features after the system comes up. If a private IP address is not used on the LAN side, this checkbox should be de-selected to free up system resources for better performance. When the system comes back after reboot, the NAT submenu will not be displayed on the left main panel. Enable Firewall checkbox: If the firewall checkbox is selected, the firewall submenu on the left side main panel will be displayed after system reboot. The user can then configure firewall features after the system comes up. If firewall is not used, this checkbox should be de-selected to free up system resources for better performance. When system comes back after reboot, the Firewall submenu will not be displayed on the left main panel. Enable IGMP Multicast: Tick the checkbox to enable IGMP multicast (proxy). [. . . ] The following log levels are Emergency = system is unusable Alert = action must be taken immediately Critical = critical conditions Error = Error conditions Warning = normal but significant condition Debugging = debug-level messages Emergency is the most serious event level, whereas Debugging is the least important. For instance, if the log level is set to Debugging, all the events from the lowest Debugging level to the most critical level Emergency level will be recorded. If the log level is set to Error, only Error and the level above will be logged. Allows the user to select the logged events and displays on the View System Log page for events of this level and above to the highest Emergency level. [. . . ]