Configuration Examples Introduction to TCP/IP
The following LAN prerequisites are possible:
Server configuration in the LAN
No IP server present
IP server present
DHCP server present
IP server present
No DHCP server present
OpenCom 100 Functions
OpenCom 100 functions automatically as DHCP and DNS server
OpenCom 100 functions automatically as DHCP client
System Administrator must assign IP address and DNS name for
OpenCom 100
Special case when integrating the
OpenCom 100 in a LAN; settings in the
NET Configuration: LAN menu must be coordinated with the responsible system administrator
8.2
Introduction to TCP/IP
In a single LAN it is possible to use various protocols for the transmission of data.
The connection between a workstation computer and the OpenCom 100 runs via the IP protocol (also named TCP/IP) used on the Internet. IP can be used together with other protocols (e.g. NetBEUI, AppleTalk or IPX/SPX) on the same network.
Every device participating in data transmission using IP requires a unique IP address. An IP address consists of four groups of digits from 0 to 255, each separated by a full stop. The supplementary protocols DHCP and PPP automatically assign IP addresses to devices. Class C networks normally use IP addresses in which the first three numbers are the same and the last number is uniquely assigned to a specific device in the LAN. On the Internet, unique addresses assigned by a special organisation created for this purpose are used. Within a LAN, you can use addresses which are not unique world-wide:
IP Range
192.168.0.0-
192.168.255.255
Common Netmask
255.255.255.0
172.16.0.0-172.31.255.255
255.240.0.0
10.0.0.0-10.255.255.255
255.0.0.0
Comment
256 smaller networks
1 medium network
1 large network
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