default or selected kernelversion does not have config value CONFIG_LP486E.
Result is shown for kernelversion 6.2.5

LP486E on board Ethernet

modulename: lp486e.ko

configname: CONFIG_LP486E

Linux Kernel Configuration
└─>Device Drivers
└─>Network device support
└─>Ethernet (10 or 100Mbit)
└─>LP486E on board Ethernet
In linux kernel since version 2.6.12  
Say Y here to support the 82596-based on-board Ethernet controller
for the Panther motherboard, which is one of the two shipped in the
Intel Professional Workstation.

source code: