CONFIG_IPX_INTERN
  Every IPX network has an address that identifies it. Sometimes it is
  useful to give an IPX "network" address to your Linux box as well
  (for example if your box is acting as a file server for different
  IPX networks: it will then be accessible from everywhere using the
  same address). The way this is done is to create a virtual internal
  "network" inside your box and to assign an IPX address to this
  network. Say Y here if you want to do this; read the IPX-HOWTO at
  <http://www.linuxdoc.org/docs.html#howto> for details.

  The full internal IPX network enables you to allocate sockets on
  different virtual nodes of the internal network. This is done by
  evaluating the field sipx_node of the socket address given to the
  bind call. So applications should always initialize the node field
  to 0 when binding a socket on the primary network. In this case the
  socket is assigned the default node that has been given to the
  kernel when the internal network was created. By enabling the full
  internal IPX network the cross-forwarding of packets targeted at
  'special' sockets to sockets listening on the primary network is
  disabled. This might break existing applications, especially RIP/SAP
  daemons. A RIP/SAP daemon that works well with the full internal net
  can be found on <ftp://ftp.gwdg.de/pub/linux/misc/ncpfs/>.

  If you don't know what you are doing, say N.

CONFIG_SPX
  * Orphaned entry retained 20 April 2001 by Petr Vandrovec     *
  * If you read this note from the configurator, please contact *
  * the Configure.help maintainers.                             *
  The Sequenced Packet eXchange protocol is a transport layer protocol
  built on top of IPX. It is used in Novell NetWare systems for
  client-server applications and is similar to TCP (which runs on top
  of IP).

  Note that Novell NetWare file sharing does not use SPX; it uses a
  protocol called NCP, for which separate Linux support is available
  ("NCP file system support" below for the client side, and the user
  space programs lwared or mars_nwe for the server side).

  Say Y here if you have use for SPX; read the IPX-HOWTO at
  <http://www.linuxdoc.org/docs.html#howto> for details.

  This driver is also available as a module ( = code which can be
  inserted in and removed from the running kernel whenever you want).
  The module will be called af_spx.o. If you want to compile it as a
  module, say M here and read <file:Documentation/modules.txt>.