diff -ruN linux-2.4.9-ctnetlink/include/linux/netfilter_ipv4/ip_conntrack.h linux-2.4.9-ctnetlink-trafinfo/include/linux/netfilter_ipv4/ip_conntrack.h
--- linux-2.4.9-ctnetlink/include/linux/netfilter_ipv4/ip_conntrack.h	Mon Oct 15 16:25:58 2001
+++ linux-2.4.9-ctnetlink-trafinfo/include/linux/netfilter_ipv4/ip_conntrack.h	Tue Oct 16 12:01:42 2001
@@ -80,6 +80,11 @@
 	struct ip_conntrack *expectant;
 };
 
+struct ip_conntrack_traffic
+{
+	__u64 octets_original, octets_reply;
+};
+
 #ifdef CONFIG_IP_NF_NAT_NEEDED
 #include <linux/netfilter_ipv4/ip_nat.h>
 #endif
@@ -139,6 +144,7 @@
 	} nat;
 #endif /* CONFIG_IP_NF_NAT_NEEDED */
 
+	struct ip_conntrack_traffic traffic;
 };
 
 /* Alter reply tuple (maybe alter helper).  If it's already taken,
diff -ruN linux-2.4.9-ctnetlink/include/linux/netfilter_ipv4/ip_conntrack_netlink.h linux-2.4.9-ctnetlink-trafinfo/include/linux/netfilter_ipv4/ip_conntrack_netlink.h
--- linux-2.4.9-ctnetlink/include/linux/netfilter_ipv4/ip_conntrack_netlink.h	Mon Oct 15 16:25:58 2001
+++ linux-2.4.9-ctnetlink-trafinfo/include/linux/netfilter_ipv4/ip_conntrack_netlink.h	Thu Oct  4 21:20:19 2001
@@ -26,7 +26,8 @@
 	CTA_PROTOINFO,	/* [rta_proto] Protocol specific ct information. */
 	CTA_HELPINFO,	/* [rta_help] Helper specific information. */
 	CTA_NATINFO,	/* [rta_nat] Any NAT transformations. */
-	CTA_MAX = CTA_NATINFO 
+	CTA_TRAFINFO,
+	CTA_MAX = CTA_TRAFINFO
 };
 
 /* Generic structure for encapsulation optional conntrack information.
diff -ruN linux-2.4.9-ctnetlink/net/ipv4/netfilter/ip_conntrack_core.c linux-2.4.9-ctnetlink-trafinfo/net/ipv4/netfilter/ip_conntrack_core.c
--- linux-2.4.9-ctnetlink/net/ipv4/netfilter/ip_conntrack_core.c	Mon Oct 15 16:25:58 2001
+++ linux-2.4.9-ctnetlink-trafinfo/net/ipv4/netfilter/ip_conntrack_core.c	Tue Oct 16 12:26:42 2001
@@ -568,6 +568,8 @@
 	conntrack->tuplehash[IP_CT_DIR_ORIGINAL].ctrack = conntrack;
 	conntrack->tuplehash[IP_CT_DIR_REPLY].tuple = repl_tuple;
 	conntrack->tuplehash[IP_CT_DIR_REPLY].ctrack = conntrack;
+	conntrack->traffic.octets_original = 0;
+	conntrack->traffic.octets_reply = 0;
 	for (i=0; i < IP_CT_NUMBER; i++)
 		conntrack->infos[i].master = &conntrack->ct_general;
 
@@ -727,6 +729,11 @@
 		return NF_DROP;
 
 	IP_NF_ASSERT((*pskb)->nfct);
+
+	if (set_reply)
+		ct->traffic.octets_reply += (*pskb)->len;
+	else
+		ct->traffic.octets_original += (*pskb)->len;
 
 	ret = proto->packet(ct, (*pskb)->nh.iph, (*pskb)->len, ctinfo,
 	    &set_notify);
diff -ruN linux-2.4.9-ctnetlink/net/ipv4/netfilter/ip_conntrack_netlink.c linux-2.4.9-ctnetlink-trafinfo/net/ipv4/netfilter/ip_conntrack_netlink.c
--- linux-2.4.9-ctnetlink/net/ipv4/netfilter/ip_conntrack_netlink.c	Mon Oct 15 16:25:58 2001
+++ linux-2.4.9-ctnetlink-trafinfo/net/ipv4/netfilter/ip_conntrack_netlink.c	Mon Oct 15 17:32:56 2001
@@ -84,6 +84,7 @@
 		&ct->tuplehash[IP_CT_DIR_REPLY].tuple);
 	s = ct->status;
 	CTA_PUT(skb, CTA_STATUS, sizeof(unsigned long), &s);
+	CTA_PUT(skb, CTA_TRAFINFO, sizeof(struct ip_conntrack_traffic), &(ct->traffic));
 	if(in)
 		CTA_PUT(skb, CTA_IIF, IFNAMSIZ, in->name);
         if(out)