The following is a list of freely copyable software that supports the packet driver specification.
Some packages are in the public domain and others are shareware.
The list of packages and locations derives in part from the document software.doc by Russell Nelson, which comes with the Crynwr packet driver collection as part of the archive pktd11.zip . Nelson's list has been updated, supplemented, and revised by members of the CCSO NAS group. All of the files listed below are available via anonymous ftp. The protocol designator is followed by the hostname of the ftp server on which the file resides, uiarchive.cso.uiuc.edu in the above example. List the files in the directory and look for the filename given in the URL or something close to it.