GTP comprises a control plane (GTP-C), user plane (GTP-U), and charging
(GTP' derived from GTP-C) traffic transferred on UDP/IP. View the
PAN-OS releases by model that support GTP
and the
3GPP Technical Standards that GTPv1-C,
GTPv2-C, and GTP-U support. Enabling GTP security on Palo Alto Networks® firewalls
allows you to protect the mobile core network infrastructure from malformed GTP
packets, denial-of-service attacks, and out-of-state GTP messages, and also allows
you to protect mobile subscribers from spoofed IP packets and overbilling
attacks.