An organization wishes to protect its SIP Server from call flooding attacks. Which of the
following configuration changes can be performed on the FortiGate unit to fulfill this
requirement?

A.
Enable Traffic Shaping for the appropriate SIP firewall policy.

B.
Reduce the session time-to-live value for the SIP protocol by running the configure
system session-ttl CLI command.

C.
Apply an application control list which contains a rule for SIP and has the “Limit INVITE
Request” option configured.

D.
Run the set udp-idle-timer CLI command and set a lower time value.

Explanation: