the invention relates to a method for providing a wireless local network , wherein stationary communication devices and mobile communication devices are connected in the manner of a mesh as the sub - network , which is particularly connected to an infrastructure network and configured to exchange authentication messages with at least one communication device , which is particularly disposed in the infrastructure network and provides an authentication function . during an attempt to establish a first link by a first communication device connected to a communication device providing the authentication function to a second communication device connected to the communication device providing the authentication function , an authenticator role to be assigned as part of an authentication process is associated with the first and second communication devices , wherein at least one property correlating with the connection is analyzed for meeting a criterion . the invention further relates to an arrangement comprising means for carrying out the method .