The Host Identity Indirection Infrastructure (Hi3) [8], a combination
of HIP and the Internet Indirection Infrastructure (I3) [10]
uses I3 for initial rendezvous and HIP for more direct, efficient
and resilient communication afterwards. The basic naming
scheme is the same as in HIP, but an improved resolution mechanism
improves resistance against denial-of-service attacks. Hi3
also enhances the I3 concept of relaying all data through an indirection
server by adding secure end-to-end communication. An
added benefit of this addition is improved middle box traversal.