Fair enough, my question was pretty vague. Does anyone know of any
    tutorials that teach more about IPX? I know nothing about it, so
    something that can teach me how addressing and network layout works as a
    start would be good. Bill has mentioned different protocols, so perhaps
    there is a layer system like TCP/IP? I have been doing a bit of google
    searching, so far nothing has popped out as an outstanding resource.

IPX is BASED on the Xerox XNS protocols, which you should be able to
find documented.  The basic packet format is exactly XNS, and I think
the reliable bytestream protocl (SPX) is also the same as used by XNS.
The routing protocol is only subtly different (bit me, a long time ago),
but you shouldn't run into that.)  It has essentially the same layers as
the TCP/IP suite - levels above transport get munged together into
particular applications...  We were able to find enough documentation of
the service advertisement protocol (SAP) to not have much trouble
implementing it, but I don't recall where it came from.


    I suppose I will have to talk to the originator of the system I wish
    to interface to, and see what IPX protocols he is using.

This will be true regardless.

BillW

--
http://www.piclist.com hint: The list server can filter out subtopics
(like ads or off topics) for you. See http://www.piclist.com/#topics