Lancom 1723 VOIP User Manual

Also see for 1722 VOIP: Manuals User manual

Contents

Lancom 1723 VOIP User Manual Manual pdf 60 page image

LANCOM 1722 VoIP – LANCOM 1723 VoIP – LANCOM 1724 VoIP – LANCOM 1823 VoIP Chapter 3: Basic configuration59EN3.4 TCP/IP settings for PC workstationsIt is extremely important to assign the correct addresses to all of the devicesin the LAN. Also, all of these computers must know the IP addresses of twocentral stations in the LAN: Standard gateway – receives all packets which are not addressed to com-puters in the local network DNS server – translates network and computer names into their actual IPaddresses.The LANCOM VoIP Router can fulfill the functions of a standard gateway andalso of a DNS server. It can also operate as a DHCP server, which automaticallyassigns IP addresses to all of the computers in the LAN.The correct TCP/IP configuration of a PC in the LAN depends essentially on themethod used for assigning IP addresses in the LAN: IP address allocation by a LANCOMIn this operating mode, a LANCOM uses DHCP to allocate not only an IPaddress to each PC in the LAN and WLAN (for devices with a radio mod-ule), but it also communicates its own IP address as the standard gatewayand DNS server. For this reason, the PCs have to be set up to automaticallyretrieve their own IP address and those of the standard gateway and DNSserver via DHCP. IP address allocation by a separate DHCP serverFor this reason, the workstation PCs have to be set up to automaticallyretrieve their own IP address and those of the standard gateway and DNSserver via DHCP. The DHCP server is to be programmed such that the IPaddress of the LANCOM is communicated to the PCs in the LAN as thestandard gateway. The DHCP server should also communicate that theLANCOM is the DNS server. Manual IP address assignmentIf IP addresses in a network are statically assigned, then the IP address ofthe LANCOM is to be set as the standard gateway and DNS server in theTCP/IP configuration of each PC in the LAN. Further information and help on the TCP/IP settings for your LANCOMVoIP Router is available in the Reference Manual. For information onthe network configuration of workstation PCs, refer to the documen-tation for the installed operating system.