Documentation for RSPF patch for listen program.

This patch was worked from the AX.25 utilities version 028b and as a result
you will need them before you start.  It should work with other versions,
but some of the patches may then fail.

The patch and file included in this archive will allow the listen program to
properly decode RSPF packets.  It will even decode the new version 2.2
packets that are used by the Linux RSPF daemon as well as the older version
2.1 packets from NOS.

The patches are pretty easy to use, all you do is put the rspfpatch and
rspfdump.c programs in the same directory as the source code for listen. 
This is usually /usr/local/ax25/src.  I suggest making copies of the
affected files, just in case.  The files are Makefile, global.h and
ipdump.c.

Then type 'patch -p0 < rspfpatch' and make sure all the patches went into
the program ok.  Then it is just a matter of typing 'make listen' and you've
got a listen that understands RSPF.

Any comments and suggestions are welcome.  I make no warranties at all about
the files but it does *appear* to be a bit more robust than the version in
NOS.

  - Craig vk2xlz

  //  /\     |   |  | | ... Craig Small ... ... craig.small@eol.ieaust.org.au 
 ||==|--|====|===|==|=| ... [44.136.8.87].. ... vk2xlz@gonzo.vk2xlz.ampr.org
  \\  \/     |   |  | | ... Minto, Australia... VK2XLZ@VK2XSB . ... ... ...

PLEASE NOTE: The patches have been applied to the source files.

