Abstract: The application of video surveillance system is becoming more and more widespread in the specialized industry, in which there exists some phenomenons such as complicated network structure, the applying of different type of network, the nonuniformity of network security rank dividing, the limitation of IP address capacity, and the text presents a model of multi-network domain design to handle this. The model uses unified configuration, and every client in each network domain can automatically match the proper network domain application pattern through the IP address of local domain. In the same time, the text also gives a detailed description of the system framework and the implementation solution of the model, and proves up the feasibility of the solution. The actual facts and application show that the model is simple and effective in solving the application problems of multi-network domain.

Key words: multi-network domain, video surveillance, cross-domain access