Network node for industrial automation network, has communication unit that forms tunnels of one virtual private sub-network with participants of sub-networks by using information relating to subscribers of virtual private network

摘要

The network node (100) comprises a digital storage medium for storing information relating to subscribers of one virtual private network of the automation network (200). A communication unit transfers the data between the sub-networks (202). The communication unit forms the tunnels of one virtual private sub-network with the participants (204) of the sub-networks by using the stored information. The communication unit receives update data for updating the information, and forwards the updated data to other network nodes of automation network. Independent claims are included for the following: (1) automation network; and (2) method for updating information over virtual private network in automation network.