The ip of Shanghai friends is displayed in Jiangsu because of the delay of network transmission or the use of virtual private network tools. According to the public information related to the query, the IP address is actually a numerical sequence used to identify the location of the computer on the Internet, which is usually assigned according to the Internet service provider (ISP) to which the device is connected. However, because the data needs to pass through multiple network nodes in the transmission process, it takes some time for each node to complete the processing and forwarding, which may lead to the problems of delay and IP address mismatch.