Virtual ethernet pair device

modulename: veth.ko

configname: CONFIG_VETH

Linux Kernel Configuration
└─>Device Drivers
└─>Network device support
└─>Virtual ethernet pair device
In linux kernel since version 2.6.24 (release Date: 2008-01-24)  
This device is a local ethernet tunnel. Devices are created in pairs.
When one end receives the packet it appears on its pair and vice
versa.

source code:
drivers/net/veth.c