IKE (Internet Key Exchange):
The protocol used to establish and manage security associations (SAs) for IPsec.
Uses UDP as the transport protocol.
The port number for IKE is typically 500.
Configurable to use different port numbers for security reasons.
IKE NAT-T (Network Address Translation Traversal):
An extension of IKE that allows IPsec to work correctly in environments where one or both endpoints are behind Network Address Translators (NATs).
Also uses UDP as the transport protocol.
Port number is configurable for IKE NAT-T as well, allowing flexibility in deployment scenarios.
Tanto IKE como IKE NAT-T usan UDP como protocolo de transporte, y los números de puerto son configurables en FortiGate (aunque los valores predeterminados son 500 para IKE y 4500 para NAT-T).
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