Rockwell Automation 1738-AENT ArmorPoint EtherNet/IP Adapter, Series A User Manual
Page 8
 
Publication 1738-IN017B-EN-E - March 2005
8 ArmorPoint EtherNet/IP Adapter, Series A
When the switches are set to a valid number, the adapter’s IP address 
will be 192.168.1.xxx (where xxx represents the number set on the 
switches). The adapter’s subnet mask will be 255.255.255.0 and the 
gateway address will be set to 0.0.0.0. When the adapter is reading the 
network address set on the switches, the adapter will not have a host 
name assigned to it or use any Domain Name System. 
If the switches are set to an invalid number (i.e., 000 or a value greater 
than 254), the adapter checks to see if DHCP is enabled. If DHCP is 
enabled, the adapter asks for an address from a DHCP server. The 
DHCP server will also assign other Transport Control Protocol (TCP) 
parameters. 
If DHCP is not enabled, the adapter will use the IP address (along 
with other TCP configurable parameters) stored in nonvolatile 
memory. 
Refer to publication 1738-UM004, ArmorPoint I/O EtherNet/IP Adapter 
User Manual, for more information.