Enet Bootp Application
January 11, 2000
DISCLAIMER
This source code is supplied as shareware, use at your own risk without any gaurantees or support.
Building the Application
The application is a single source module named "enetbootp.c." There is a batch file named bat
that needs to be changed to executable and running it will build an application called enetbootp.
Configuring the Application
A file named enetbootp.cfg must reside in the location the enetbootp application is started. The
configuration file contains information for identifying incoming Opto 22 Ethernet bootp packets and
the proper information to send to the devices. Each entry MUST contain the MAC (as 6 dash digits),
the IP address in "dot" format, and the netmask (also in dot format). The gateway may be supplied.
A DNS field is supplied but is not used in current versions of the Ethernet devices. Any right
sided field missing will be interpreted as a 0.0.0.0 address.
The MAC address is shown in the table as the 6 "dash" format, however, the application assumes
internally that the three most significant bytes are 00-a0-3d as all Opto 22 devices start with this
header.
Running the Application
In the folder that has the configuration file, invoke the enetbootp executable. As the server listens
on port 67, this is considered a system port and you MUST be root to do this. We're looking into making
a psuedo port above the system level so you won't have to do this but, don't expect it too soon.
Customizing the Application
If you prefer to imbed this app's features, comment the main function and make a small header that protos
the configuration and listen functions. Use the main as a prototype for the function call order. You
may also want to lower the number of static structures maintained in the enetlist. This is deliberately
set high and it's probably higher than it really needs to be...
OS History
Created and ran on a Pentium 133 platform, Redhat 6.1, with two Intel EEPro adapters.
Download Driver Pack
After your driver has been downloaded, follow these simple steps to install it.
Expand the archive file (if the download file is in zip or rar format).
If the expanded file has an .exe extension, double click it and follow the installation instructions.
Otherwise, open Device Manager by right-clicking the Start menu and selecting Device Manager.
Find the device and model you want to update in the device list.
Double-click on it to open the Properties dialog box.
From the Properties dialog box, select the Driver tab.
Click the Update Driver button, then follow the instructions.
Very important: You must reboot your system to ensure that any driver updates have taken effect.
For more help, visit our Driver Support section for step-by-step videos on how to install drivers for every file type.