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The best way to run the Chesapeake Subnet Calculator is from within a Java capable browser. We've worked with Netscape 3.0 and Internet Explorer 3.0. An alternative approach is to use the appletviewer contained in the Java Developer's Kit (JDK). We recommend the browser approach unless you already have the JDK installed.
Browsers can be acquired from the following sources:
Now that you have a Java capable browser installed, you can download the appropriate format file to install on your machine. First, create a directory where you want the files installed such as C:\java\applets\subcalc on a PC, or /usr/local/lib/java/applets/subcalc on a Unix workstation.
You will need to Register and Download to register yourself and download one of the distribution files. For PCs, either the zip or the self-extracting zip files are most appropriate. For Unix workstations, the tar.Z or tar files will generally be more appropriate. It is best to save the file in the directory you created above.
On your local machine, you'll have to extract the distribution. How you do this depends on the file format you downloaded.
The easiest way for PCs is to download the self-extracting zip file (subcalc.exe) and just execute it. On a PC, start Windows Explorer, find the downloaded file, and click on it. Windows will execute the self-extracting zip file.
If you grab the zip file, you'll need the Win95 or WinNT version of pkunzip to extract the files with the full filenames that Java needs.
On Unix workstations, grab the tar.Z file, then run the following
command:
zcat subcalc.tar.Z | tar xvf -
(Don't forget the hyphen at the end of the tar command!)
To run the Chesapeake Subnet Calculator, simply point your Java capable browser at the subcalc.htm file, and a local version of the calculator should come right up. To access the web page documentation, point your browser at index.htm.