The invention discloses a
unicast addressing
conversion method suitable for a space-based network, and aims to solve the problems of routing security, mobility, expansibility and the like during large-scale user networking of the space-based network. According to the method, conversion information of user addressing identifiers and
satellite network addressing identifiers is generated by maintaining the mapping relation between addressing identifiers of user subnets of the whole network and addressing identifiers in a
satellite network, conversion of user addressing
modes is completed at edge nodes of the
satellite network, and user data is forwarded in the
satellite network according to the satellite addressing identifiers. According to the scheme, the isolation of the user subnet routing information and the routing information in the
satellite network is realized, the user carries out routing exchange in the ground subnet according to a standard
addressing mode, routing is carried out in the space-based network based on the satellite addressing identifier, and the problems of routing safety, mobility and the like caused by the fact that the space-based network adopts a traditional IP network technology are solved. Meanwhile, the on-satellite
processing burden of the space-based network is reduced, and large-scale user networking of the space-based network is supported.