Wireless networks vs Fixed Networks(cont) Lower security simpler active attacking Radio interface accessible for everyone base station can be simulated thus attracting calls from mobile phones Always shared medium Secure access mechanisms important e Close and complex inter-layer interactionWireless Networks vs. Fixed Networks (Cont.) • Lower security, simpler active attacking – Radio interface accessible for everyone, base station can be simulated, thus attracting calls from mobile phones • Always shared medium – Secure access mechanisms important • Close and complex inter-layer interaction