Search for: [Description = "The primary network layer protocol on which the operation of most computer networks is based, including the Internet is the Internet protocol version 4 \(IPv4\). Due to the limitations of this protocol, it is becoming increasingly widespread use of the Internet protocol version 6 \(IPv6\). The IPv6 implements some new features not available in IPv4. The paper provides a short overview of the key features of IPv6 and discussed the possible levels of network virtualization. The research environment to testing the level of support for IPv6 protocol by virtualization environments is proposed. The results of tests conducted using the proposed research environment for Hyper\-V virtualizer are presented."]