Lancom 1811 User Manual

Contents

Lancom 1811 User Manual Manual pdf 37 page image

LANCOM 1811 Wireless DSL – LANCOM 1821+ Wireless ADSL Chapter 3: Basic configuration37EN3.3 Instructions for WEBconfigTo configure the router with WEBconfig you must know how to address it inthe LAN. The reaction of the devices, as well as their accessibility for configu-ration via web browser is dependent on whether a DHCP server and a DNSserver are already active in the LAN, and whether these two server processesexchange the assignment of IP addresses to symbolic names within the LANbetween each other.After powered on, unconfigured LANCOM devices check first, whether a DHCPserver is already active in the LAN. Dependent on the situation, the device isable to switch on its own DHCP server or, alternatively, to activate its DHCPclient mode. In this second operating mode, the device itself can obtain an IPaddress from a DHCP server already existing in the LAN.Network without DHCP serverIn a network without DHCP server, unconfigured LANCOM devices activatetheir own DHCP server service after starting, and assign appropriate IPaddresses and gateway information to the other workstations within the LAN,provided that the workstations are set to obtain their IP address automatically(auto-DHCP). In this constellation, the device can be accessed with any webbrowser from each PC with activated auto-DHCP function through the nameLANCOM or by its IP address 172.23.56.254.If the configuration PC does not obtain its IP address from the LANCOM DHCPserver, figure out the current IP address of this PC (with Start Execute cmd and command ipconfig at the prompt under Windows 2000 or WindowsXP, with Start Execute cmd and the command winipcfg at the promptunder Windows Me and Windows 9x, or with the command ifconfig on theconsole under Linux). In this case, the LANCOM is reachable under the IPaddress x.x.x.254 ( “x” stands for the first three blocks in the IP address ofthe configuration PC).http://LANCOMhttp://172.23.56.254