Network core driver support

configname: CONFIG_NET_CORE

Linux Kernel Configuration
└─>Device Drivers
└─>Network device support
└─>Network core driver support
In linux kernel since version 3.1 (release Date: 2011-10-24)  
You can say N here if you do not intend to use any of the
networking core drivers (i.e. VLAN, bridging, bonding, etc.)