ipsec_add_node (vm, esp4_encrypt_node_name, "ipsec4-output-feature",
&b->esp4_encrypt_node_index, &b->esp4_encrypt_next_index);
ipsec_add_node (vm, esp4_encrypt_node_name, "ipsec4-output-feature",
&b->esp4_encrypt_node_index, &b->esp4_encrypt_next_index);