You need to find the immune wall as soon as possible. There are almost 600 units in our unit, using the immune wall. Immune wall is specially designed for the security and management of LAN. Immune wall, realize automatic guardian gene binding, and ensure the authenticity, uniqueness and reliability of identity. Immune Wall can directly intercept virus attacks from each computer from the network card, and limit the upload and download and contract size from the network card for unified management. There is only one network administrator, who can also monitor the internet access status and quality of computers in the whole intranet, the upload and download of each desktop computer in and out of the intranet, and the number of connections. If there is any abnormality, it can accurately locate the alarm. The whole network can be seen and touched, and there are patents.