The security is always a big concern for networks. 3G network depends on GPRS Tunnel Protocol(GTP), key protocols in the 3G the core network. In the flat, full IP environment, the GTP is known to vulnerable to attacks (Peng, 2010). Peng et al. discussed different type of attacks (Protocol abnormal attack, Infrastructure attack (GTP Deception), Resource consumption attack) targeting GTP. Also they suggested that solution based on GTP traffic analysis and filter.

For 4G network, do you think the same attacks are still possible or there are others ones? Why?