Perform the following task if you want a firewall
to have a threshold different from the default setting of 500 half-opened
SA sessions before cookie validation is required. For more information
about cookie validation, see Cookie Activation Threshold and Strict Cookie Validation.
Change the Cookie Activation Threshold.
edit the VPN Session Settings. For
, enter the maximum number of half-opened SAs
that are allowed before the responder requests a cookie from the
initiator (range is 0-65535; default is 500).