Method for Remotely Servicing a Field Device of Automation Technology

A method for remotely servicing a field device of automation technology located in a first network secured by a first firewall, wherein remote servicing occurs via a servicing device associated with a second network secured by a second firewall comprising the steps of: establishing a first communication connection between the field device and a gateway associated with the first network; establishing a second communication connection; reporting of the first gateway; granting a unique identifier by a broker server for the first communication connection; transmitting the unique identifier to a second gateway associated with the second network; establishing a third communication connection between the second gateway and the broker server using the unique identifier; and establishing a communication connection between the second gateway and the first gateway, wherein: the broker server logically connects the second communication connection and the third communication connection with one another, so that communication connection between the servicing device and the field device is produced.