Also I have set
net.inet.ipsec.filtertunnel = 0x0001
net.inet6.ipsec6.filtertunnel = 0x0001
net.enc.out.ipsec_bpf_mask = 0x0000
net.enc.out.ipsec_filter_mask = 0x0000
net.enc.in.ipsec_bpf_mask = 0x0000
net.enc.in.ipsec_filter_mask = 0x0000
net.inet.ipsec.filtertunnel = 0x0001
net.inet6.ipsec6.filtertunnel = 0x0001
net.enc.out.ipsec_bpf_mask = 0x0000
net.enc.out.ipsec_filter_mask = 0x0000
net.enc.in.ipsec_bpf_mask = 0x0000
net.enc.in.ipsec_filter_mask = 0x0000