Rockwell Automation 1747-L55x,D174710.4 SLC 500 Ethernet - Manual (Page 26)

3–8 Configuring the Ethernet Channel for Local Communication
Publication 1747-10.4
The host system’s BOOTP configuration file must be updated to
service requests from SLC 5/05 processors. The following
parameters must be configurable:
Parameter Description
IP Address A unique IP Address for the SLC 5/05 processor.
Subnet Mask
Specifies the net and local subnet mask as per the standard on
subnetting RFC 950, Internet Standard Subnetting Procedure.
Gateway
Specifies the IP address of a gateway on the same subnet as the
SLC 5/05 that provides connections to another IP network.
Note: If you do not have BOOTP server capabilities on your
network, and you want to dynamically configure
Channel 1, you can download the utility from
http://supportbbs.ra.rockwell.com or via modem at
440-646-5441.
When BOOTP is enabled, the following events occur at power-up:
•
The processor broadcasts a BOOTP request message containing
its hardware address over the local network or subnet.
•
The BOOTP server compares the hardware address with the
addresses in its look-up table in the BOOTPTAB file.
•
The BOOTP server sends a message back to the processor with
the IP address and other network information that corresponds
to the hardware address it received.
With all hardware and IP addresses in one location, you can easily
change IP addresses in the BOOTP configuration file if your
network needs change.
Using DOS/Windows BOOTP
Both the DOS-based and Windows-based BOOTP server utilities
provide BOOTP services for SLC 5/05 processors. Regardless of the
platform you are using, you must:
•
install the boot-server utility
•
edit the boot-server configuration file
•
run the boot-server utility
Important: Do not use the BOOTP utility if you already have
INTERCHANGE software installed. Instead, use the
boot-server capabilities that came with your
INTERCHANGE software.