Method and communication system for accessing a wireless communication network

A method for accessing a wireless communication network is described, comprising collocating a Proxy Agent apparatus with an Access apparatus and determining in a Mobile Gateway apparatus an address of the Access apparatus. The Proxy Agent apparatus comprises information about a Master apparatus, the Master apparatus being adapted for executing a master function. The method further comprises indicating a message, to be handled by the master function, as a master function message and sending the master function message to the address of the Access apparatus. Furthermore, the method comprises diverting in the Access apparatus the master function message to the Proxy Agent apparatus and forwarding the master function message to a Proxy Relay apparatus for relaying the master function message to the Master apparatus.