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Hierarchy Level


Enable multiple path forwarding of IPsec traffic by adding a UDP header to the IPsec encapsulation of packets. Doing this increases the throughput of IPsec traffic. If you do not enable UDP encapsulation, all the IPsec traffic follows a single forward path rather than using multiple available paths.


udp-dest-port destination-port

(Optional) Use the specified UDP destination port for the UDP header that is appended to the ESP encapsulation.

  • Range: 1025 through 65536. Do not use 4500.

  • Default: If you do not include the udp-dest-port statement, the default UDP destination port is 4565.

Required Privilege Level

interface—To view this statement in the configuration.

interface-control—To add this statement to the configuration.

Release Information

Statement introduced in Junos OS Release 16.1.