charon {
    install_routes = no
    install_virtual_ip = no
    interfaces_use = lo
    make_before_break = yes
    syslog {
        auth {
            ike_name = yes
            default  = 0
        }
        daemon {
            ike_name = yes
            default  = 1
            knl      = 1
            cfg      = 1
            ike      = 0
            net      = 0
            enc      = 0
        }
    }
}