3. Commissioning3.3 Switch on3.3.5 Commissioning the Ethernet networkIf you only want to communicate with one single easyE4, use an Ethernet cable to con-nect the easyE4 Ethernet port to your computer – please refer to → "Connecting the Eth-ernet cable", page 65easySoft 7 communications make it possible to search for connected easyE4 that areswitched on and establish communications with them.3.3.5.1 Network operationInstall the Ethernet network as required by your network architecture (switch, router,firewall, VPN, etc.)If you want to run the easyE4 with other devices on the Ethernet network and com-municate through the Internet, you will need to incorporate network security measuresoutside of the easyE4.Make sure that the network area in which you run the easyE4 devices issecure.You can do this by using VPN connections or other network securitymeasures such as a firewall, a VLAN without Internet access, etc.WARNINGMake sure that it is absolutely impossible to have unauthorized accessto your easyE4 devices through a network. Unauthorized access mayresult in property damage and/or, in the worst-case scenario, seriousinjury or death.Eaton recommends implementing measures for protecting against cyberattacks.Eaton cyber securityhttp://www.eaton.com/us/en-us/company/news-insight-s/cybersecurity.htmlhttp://www.eaton.com/cybersecuritySee also→ Section "Establish Ethernet connection", page 119easyE4 11/18 MN050009 EN www.eaton.com 83