In the Internet, the transmission of IP datagrams needs to reach the destination host through the source host and the midway router. The following statement is correct ().

For IP network, datagram mode is adopted, so neither the source host nor the midway router knows the complete path of datagram, the router only knows the next hop address to the destination address, the host only knows the path to the local network, and datagrams reaching other networks are forwarded to the gateway address, that is, the router, so neither the source host nor the midway router knows the complete path that IP datagrams need to take to reach the destination host.