IPS_SRC_NAT_BIT 61 include/uapi/linux/netfilter/nf_conntrack_common.h IPS_SRC_NAT = (1 << IPS_SRC_NAT_BIT), IPS_SRC_NAT_BIT 181 net/netfilter/xt_conntrack.c if (test_bit(IPS_SRC_NAT_BIT, &ct->status))