In this paper authors describe the design and realization of a system that allows guests to connect to a company’s internet-access channel via wireless local area network (WLAN). The core of the corporate infrastructure stays protected against unauthorized access. Although a growing number of companies provide WLAN access for their employees, guest access is rarely granted due to security concerns and substantial maintenance hurdles. Even if a network administrator might be willing to provide such access, it often would be done manually with substantial time delay. The solution authors propose to solve this problem and to simplify the whole procedure is based on establishing a chain of trust.