Embodiments of the present disclosure relate to a method, a device and a computer readable medium for IPv6 address management in an IAB system. The method comprises obtaining an IPv6 prefix for an IAB node in the IAB system, the prefix being associated with the donor central unit or a donor distributed unit in the IAB system; determining an interface identity for the IAB node; and generating, based on the Internet Protocol Version 6, IPv6, prefix and the interface identity, an IPv6 address for the IAB node for communication between the donor central unit and the IAB node. As a result, IPv6 address management for an IAB node in an IAB system is implemented.