Which statement about IKE and IKE NAT-T is true?

IKE (Internet Key Exchange): IKE is a protocol used to set up a security association (SA) in the IPsec

protocol suite. It is utilized to negotiate, create, and manage SAs.

NAT-T (Network Address Translation-Traversal): NAT-T is used to enable IPsec VPN traffic to pass

through NAT devices. It encapsulates IPsec ESP packets into UDP packets.

Transport Protocol: Both IKE and IKE NAT-T use UDP as their transport protocol.

Port Numbers: By default, IKE uses UDP port 500. NAT-T typically uses UDP port 4500. However,

these port numbers can be configured as needed.

Reference:

Fortinet Network Security Support Engineer Study Guide for FortiOS 7.2​(Fortinet Docs)​​(ebin.pub)​.

Fortinet Documentation on IPsec VPN Configuration​(Fortinet Docs)​.