User manual

Publication ENET-UM001I-EN-P - January 2010 51
Configure an EtherNet/IP Module to Operate on the Network Chapter 4
Use DHCP Software to Set the IP Address
Dynamic Host Configuration Protocol (DHCP) software automatically assigns
IP addresses to client stations logging onto a TCP/IP network. DHCP is
based on BOOTP and maintains some backward compatibility. The main
difference is that BOOTP allows for manual configuration (static), while
DHCP allows for both static and dynamic allocation of network addresses and
configurations to newly attached modules.
Be cautious when using DHCP software to con
figure a module. A BOOTP
client, such as the EtherNet/IP modules, can boot from a DHCP server only
if the DHCP server is specifically written to also handle BOOTP queries. This
is specific to the DHCP software package used. Consult your system
administrator to see if a DHCP package supports BOOTP commands and
manual IP allocation.
Duplicate IP Address
Detection
Some EtherNet/IP modules (and their future revisions) support duplicate IP
address detection.
ATTENTION
The EtherNet/IP module must be assigned a fixed network
address. The IP address of this module must not be dynamically
provided.
Failure to observe this precaution may result in unintended
machine motion or loss of process control.
Cat. No. Firmware Revision
1734-AENT, 1734-AENTR 2.1 and later
1738-AENT, 1738-AENTR 3.002 and later
1756-ENBT 3.2 and later
1756-EN2F 1.x and later
1756-EN2T 1.x and later
1756-EN2TR 1.x and later
1756-EN2TRXT 1.x and later
1768-ENBT 1.x and later
1769-L2x 17.01 and later
1769-L32E and 1769-L35E 15.01 and later
1783-ETAP 1.x and later
1783-ETAP1F, 1783-ETAP2F 2.x and later