IPS_DST_NAT_BIT    49 include/linux/netfilter/nf_conntrack_common.h IPS_DST_NAT_BIT = 5,
IPS_DST_NAT_BIT    50 include/linux/netfilter/nf_conntrack_common.h IPS_DST_NAT = (1 << IPS_DST_NAT_BIT),