default or selected kernelversion does not have config value CONFIG_IPX.
Result is shown for kernelversion 6.7-rc3

The IPX protocol

modulename: p8022.ko

and/or

ipx.ko

configname: CONFIG_IPX

Linux Kernel Configuration
└─>Networking support
└─>Networking options
└─>The IPX protocol
In linux kernel since version 2.6.12  
This is support for the Novell networking protocol, IPX, commonly
used for local networks of Windows machines. You need it if you
want to access Novell NetWare file or print servers using the Linux
Novell client ncpfs (available from
<ftp://platan.vc.cvut.cz/pub/linux/ncpfs/>) or from
within the Linux DOS emulator DOSEMU (read the DOSEMU-HOWTO,
available from <http://www.tldp.org/docs.html#howto>). In order
to do the former, you'll also have to say Y to "NCP file system
support", below.

IPX is similar in scope to IP, while SPX, which runs on top of IPX,
is similar to TCP.

To turn your Linux box into a fully featured NetWare file server and
IPX router, say Y here and fetch either lwared from
<ftp://ibiblio.org/pub/Linux/system/network/daemons/> or
mars_nwe from <ftp://www.compu-art.de/mars_nwe/>. For more
information, read the IPX-HOWTO available from
<http://www.tldp.org/docs.html#howto>.

The IPX driver would enlarge your kernel by about 16 KB. To compile
this driver as a module, choose M here: the module will be called ipx.
Unless you want to integrate your Linux box with a local Novell
network, say N.

source code:
selects
CONFIG_LLC

depends
CONFIG_NET