You should read sk156672. Fast acceleration requires R80.20+ (new SecureXL) and on a firewall cluster, you need to replicate the rules on all cluster members as it's a per gateway configuration.
https://supportcenter.checkpoint.com/supportcenter/portal?eventSubmit_doGoviewsolutiondetails=&solut...
(8) Example Usage:
fw ctl fast_accel add 1.1.1.1 2.2.2.0/24 80 6
fw ctl fast_accel delete 192.168.0.0/16 any 8080 17
fw ctl fast_accel add 255.168.240.0/20 255.0.0.0/8 1503 any
fw ctl fast_accel show_table
fw ctl fast_accel enable
fw ctl fast_accel disable
And remember that policy needs to be pushed after the rules have been added for them to take effect. And it will only affect new connections, existing connections will not be re-matched towards fast acceleration rules.
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