May 26, 2018
User-space 6rd (RFC 5569) implementation
The u6rd is a user-space 6rd RFC 5569 implementation, which uses tun4 and the raw socket interface. The u6rd daemon runs on the 6rd border router of a 6rd site that is isolated from the native IPv6 Internet. It does not provide the functionality of 6rd “relay” routers.