freeswan and suse 7.2

Hi List, i attempt to run a freeswan ipsec for w2k Workstations with suse 7.2. I have no changes to the standart installation of the yast tool (no kernel changes, no changes in the ipsec.conf). At the start of freeswan i have an error number 22. The ipsec interface is up. Must i configure anyone before i start freeswan?? Must i configure the kernel. The doc says no. Thanx for Help Andreas