Using the Ethernet Port
870 USE 101 10 V..2 151
Assigning Ethernet Address Parameters, Continued
When the
Processor
Adapter is
Power-up with a
Configuration for
“Specify IP
Address”
If the processor adapter is powered-up without battery backup and its IP address
was previously saved to flash; the adapter will listen for any Bootp messages but
will not will not issue any Bootp requests. I nstead it will use the IP address that is
specified in the configuration. Then, three ARP broadcasts are made, five secon ds
apart, to check for duplicate a IP address. Then, three gratuitous ARP broadcasts
are made, two seconds apart, with the station’s MAC address and IP address.
To Retain the IP
Address After setting the module’s IP address, you must s av e i t to fl ash m em ory if yo u wa nt
this setting to be retained when power is removed from the module. This is
necessary even if the module is attached to a ring adapter that provides battery
back up. See

Saving to Flash with Concept

on page 399.