User manual

Ethernet Communication Services
33002479 06 07/2008 83
DHCP Server
The Dynamic Host Configuration Protocol (DHCP) is a superset of the BOOTP
protocol. Your 140 NOE 771 x1 has a DHCP server. The DHCP server is compliant
with RFC 1531. The DHCP server can be used to provide the IP configuration to
devices using BOOTP or devices using DHCP.
The DHCP server has entries that use the MAC address to serve the IP
configuration and entries in the server that use the role name to serve the IP
configuration. Elsewhere in this book are details for the NOE Address server
configuration (see Address Server Configuration/Faulty Device Replacement,
p. 213).
If you are migrating a BOOTP configuration from a 140 NOE 771 x0 module to the
new 140 NOE 771 x1 module, see Address Server Configuration/Faulty Device
Replacement (see Address Server Configuration/Faulty Device Replacement,
p. 213) for details on the automatic upgrade of your configuration for the new DHCP
server.
Faulty Device
Replacement
Faulty device replacement and the address server are discussed in detail at Address
Server Configuration/Faulty Device Replacement (see Address Server
Configuration/Faulty Device Replacement, p. 213).
Note: The DHCP server is available on the 140 NOE 771 x1 models.
Note:
Before placing the NOE on a corporate network, Schneider Electric recommends
that you discuss the installation with your MIS department. It is likely that your
company's corporate network has at least one DHCP server running already. If the
NOE's DHCP server is running on the same network, it may disturb the network.
To avoid any possible problem related to the NOE's DHCP server on the corporate
network, ensure that the DHCP server is not running in the NOE by not having
address entries in the configuration. If there are no configured devices in the
Address server configuration page (see Address Server Configuration/Faulty
Device Replacement, p. 213), then the NOE will not start the DHCP server.