ipfirewall_v2.0c.shar.gz

  This is a facility that allows the user to setup an ipfirewall to 
  protect themselves from the roving bands of villains that inhabit 
  the darker corners of the forest!  The facility works by allowing 
  the system administrator to specify which IP packets are to be accepted 
  or rejected by the facility.  The filtering or screening of packets 
  is done by a routine in the kernel that is called by the very bottom 
  layer of the IP inbound packet processing routines.  By intercepting 
  packets at this level, the firewall facility is inexpensive in terms 
  of system resources and quite secure in the sense that all IP packets 
  are screened including those intended to be forwarded to other
  machines.  By Danny Boulet (danny@nahanni.BouletFermat.ab.ca)

  The changes in this version (that are relevant to BSD/OS) are:
    - the timestamp IP option is now treated the same as the record-route
      option instead of being treated as a miscellaneous IP option.
      This corresponds to how the v2.0 documentation says this option
      is treated (sigh).
    - the shar file now creates a directory called "Ipfirewall_v2.0a"
      and all of the files end up in that directory instead of in
      the current directory.
    - the shar file include a set of diffs for BSD/OS v1.1.
    - Includes fix from version a that eliminates case were certain packets
      could slip through.
  By Danny Boulet (danny@nahanni.BouletFermat.ab.ca)

ipfirewall_v2.0e.shar.gz
  Latest version if ipfirewall from Danny Boulet <danny@BouletFermat.ab.ca>

screend-intro.shar.gz
  Documentation and README files for screend by Paul Vixie (paul@vix.com)
  Screend is located at ftp.vix.com:~ftp/pub/vixie/screend.tar.gz