IPS_SRC_NAT 46 include/linux/netfilter/nf_conntrack_common.h IPS_SRC_NAT = (1 << IPS_SRC_NAT_BIT), IPS_SRC_NAT 53 include/linux/netfilter/nf_conntrack_common.h IPS_NAT_MASK = (IPS_DST_NAT | IPS_SRC_NAT),