FortiOS Carrier includes a PFCP session helper that works for UDP traffic on port 8805. This session helper must be enabled for PFCP protection to work.
Use the following command to enable the PFCP session helper.
config system session-help
set name pfcp
set protocol 17
set port 8805
View the configuration of the
config system session-helper command to verify that the PFCP session helper is enabled and configured correctly.