+
+ /* Nat Traversal related bits */
+ u_int64_t natt_last_activity;
+ u_int16_t remote_ike_port;
+ u_int16_t natt_encapsulated_src_port; /* network byte order */
+ u_int16_t natt_interval; /* Interval in seconds */
+ u_int16_t natt_offload_interval; /* Hardware Offload Interval in seconds */
+
+ u_int8_t always_expire; /* Send expire/delete messages even if unused */