Which Port Is Used in IPSec NAT Traversal Scenarios

Created: May 24, 2017 07:20:35Latest reply: May 24, 2017 08:53:06 1780 1 1 0 0

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Lucio Created May 24, 2017 08:53:06

The initial port used in IKE negotiation is 500. After the NAT traversal capability detection and NAT gateway detection are complete, the UDP port for encapsulating ISAKMP messages is changed to 4500. The subsequent negotiation and data transmission use this port.

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Which Port Is Used in IPSec NAT Traversal Scenarios

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