Modern Internet architecture is based on the model of interaction with the host-center, which was
convenient at the initial stage of the Internet development. However, today most users are interested in
receiving (often it is huge amounts) information, regardless of its physical location. This shift paradigm
in the Internet model, as well as the need to improve security and mobility support, led to a radical revision
of the future Internet architecture. In this connection а lot of researches have appeared. In particular,
these are some models with an information-centric network (ICN) organization. There are a lot of
open questions in ICN. Some of which are discussed in this article. First, these are the basic functional
capabilities of ICN architectures. Secondly, it is naming and data routing organization. Thirdly, these
are issues of security and caching.