| 摘要 |
A customer's server datagram request and/or customer field unit's datagram is wrapped with a header and footer that contains a defined hopping path with direction control. An IP Host stores predefined hopping paths to all of the customer's field units, and looks at the address of the customer's request packet to determine the correct hopping path. A communication device receives the customer's field unit's datagrams and adds a defined hopping path to send the datagram to the IP Host which removes the hopping path and sends the datagram to the customer server. |
