Whichi file define the algorithm of phase 1 of IKE in freeswan 2.0.6? OS: Redhat Linux9,kernel:2.4.20_8 Application: freeswan-userland-2.06_2.4.20_8-0.i386.rpm freeswan-module-2.06_2.4.20_8-0.i386.rpm Yoichi Takeuchi