will automate negotiation according to opposite end 
IKE Encryption: IKE phased encryption mode 
IKE Integrity: IKE phased integrity solution 
IKE Group type: DH exchange algorithm 
IKE Lifetime: set IKE lifetime, current unit is hour, the default is 0 
ESP Encryption: ESP encryption type 
ESP Integrity: ESP integrity solution 
ESP Key life: Set ESP key life, current unit is hour, the default is 0 
IKE aggressive mode allowed: Negotiation mode adopt aggressive mode if tick; it is main 
mode if non-tick 
Negotiate payload compression: Tick to enable PFS, non-tick to disable PFS 
Authentication: choose use share encryption option or certificate authentication option. Current 
is only to choose use share encryption option.