NixOS/nixpkgs — pull request #3087 by wkennington (2014-06-26 05:27:26+00:00)
Title: nixos/network-interfaces: Add sit interfaces

Previously, we had no method for creating 6-to-4 tunneled interfaces.
This patch adds the option networking.sits, which allows the user to
create named 6-to-4 sit devices.