Rockwell Automation 1768-EWEB EtherNet/IP Web Server Module User Manual - Manual (Page 31)

31 Publication ENET-UM527E-EN-P - October 2006
Chapter
2
Configure a Network Address For a
Web Server Module
How to Use This Chapter This chapter describes how to configure a module to operate on an
Ethernet network.
Determine Which Network
Parameters Are Required For the module to operate on an Ethernet network, you must define
these parameters.
Topic Page
Determine Which Network Parameters Are Required 31
Assign Network Parameters When the Network Has a DHCP
Server 32
Assign Network Parameters Without A DHCP Server 35
Duplicate IP Address Detection 40
IP Address Swapping 42
DNS Addressing 42
Verify Network Settings 44
Ethernet Parameter Description
IP Address The IP address uniquely identifies the module. The IP address is in the form
xxx.xxx.xxx.xxx where each xxx is a number between 0...255. You cannot use these
reserved values:
• 127.0.0.1
• 0.0.0.0
• 255.255.255.255
Subnet mask Subnet addressing is an extension of the IP address scheme that lets a site to use a single
network ID for multiple physical networks. Routing outside of the site continues by
dividing the IP address into a net ID and a host ID via the class. Inside a site, the subnet
mask is used to redivide the IP address into a custom network ID portion and host ID.
Gateway A gateway connects individual physical networks into a system of networks. When a node
needs to communicate with a node on another network, a gateway transfers the data
between the two networks.