The IPv6 protocol

modulename: ipv6.ko

configname: CONFIG_IPV6

Linux Kernel Configuration
└─>Networking
└─>Networking options
└─>The IPv6 protocol
In linux kernel since version 2.6.12  
This is complemental support for the IP version 6.
You will still be able to do traditional IPv4 networking as well.

For general information about IPv6, see
<http://playground.sun.com/pub/ipng/html/ipng-main.html>.
For Linux IPv6 development information, see <http://www.linux-ipv6.org>.
For specific information about IPv6 under Linux, read the HOWTO at
<http://www.bieringer.de/linux/IPv6/>.

To compile this protocol support as a module, choose M here: the
module will be called ipv6.

source code: