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105U-G Wireless Gateway
User Manual
Page
65
©
August 2003
4.9.2
Setting IP Address
The Ethernet IP address can be set from the configuration software or via the Ethernet port or
via the selector switches in the top end-plate of the module. If the “Enable Switch Address”
box is not selected, then the address entered in the program will be used and the switch value
ignored. The IP address can be overwritten from the Ethernet port. If the “Enable Switch
Address” box is selected, then the address entered in the configuration program will be
ignored and the rotary switch read on start-up of the 105G.
The IP address is used to identify each node on the Ethernet network. Therefore, each node on
the network must have a unique IP address. IP addresses are written as four decimal integers (0-
255) separated by periods, where each integer represents the binary value of one byte in the IP
address. This is called dotted-decimal notation.
Example: 169.254.100.1
Normally the first three parts of the IP address represents the Ethernet LAN, and the last part
is the Ethernet node address.
Subnet Mask
To be able to establish communication between two Ethernet devices, both devices must
belong to the same subnet. If not, the communication must be done through a gateway. It is
therefore recommended to configure the module to the same subnet as your host device.