GTP is a protocol that encapsulates general packet radio service (GPRS) traffic to transmit the GPRS traffic over TCP/IP networks. GTP is compatible with GSM (2G), UMTS (3G), LTE (4G), and 5G networks. GTP can transport GPRS traffic over the internet and over private TCP/IP and IMS networks and is compatible with IPv4 and IPv6.
FortiOS Carrier supports GTPv0, GTPv1, and GTPv2 for 2G, 3G, 4G, and 5G networks by allowing you to create GTP profiles. These profiles allow you to apply multiple types of filtering and content checking to GTP traffic passing through FortiOS Carrier.
Once you have created GTP profiles, you can create firewall policies that accept the GTP traffic that you want to apply the GTP profile to.
To configure GTP profiles from the CLI, use the command
config firewall gtp.
To configure GTP profiles from the GUI, go to Security Profiles > GTP Profiles.
Creating GTP profiles is described in Configuring GTP profiles.