SYSCTL_DYN_IPF_NAT
SYSCTL_DYN_IPF_NAT(_net_inet_ipf, OID_AUTO, "fr_defnatage", CTLFLAG_RWO,
SYSCTL_DYN_IPF_NAT(_net_inet_ipf, OID_AUTO, "ipf_nattable_max", CTLFLAG_RWO,
SYSCTL_DYN_IPF_NAT(_net_inet_ipf, OID_AUTO, "ipf_nattable_sz", CTLFLAG_RWO,
SYSCTL_DYN_IPF_NAT(_net_inet_ipf, OID_AUTO, "ipf_natrules_sz", CTLFLAG_RWO,
SYSCTL_DYN_IPF_NAT(_net_inet_ipf, OID_AUTO, "ipf_rdrrules_sz", CTLFLAG_RWO,
SYSCTL_DYN_IPF_NAT(_net_inet_ipf, OID_AUTO, "ipf_hostmap_sz", CTLFLAG_RWO,