--- ./1/wrapper/src/main.c	2011-01-28 14:56:41.000000000 -0500

+++ ./2/wrapper/src/main.c	2011-01-28 14:55:36.000000000 -0500

@@ -475,11 +475,6 @@

 	struct sk_buff *linearized_skb = NULL;

 	const struct sk_buff *skb_use = NULL;

-	if (nf_ct_is_untracked(skb)){

-		pr_info ("xt_opendpi: ignoring untracked sk_buff.\n");

-		return false;               

-	}

-

 	if (skb_is_nonlinear(skb)){

 		linearized_skb = skb_copy(skb, GFP_ATOMIC);

 		if (linearized_skb == NULL) {

@@ -500,6 +495,17 @@

 		return false;

 	}

+

+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,36)

+	if (nf_ct_is_untracked(skb)){

+		pr_info ("xt_opendpi: ignoring untracked sk_buff.\n");

+#else

+	if (nf_ct_is_untracked(ct)){

+		pr_info ("xt_opendpi: ignoring untracked nf_conn.\n");

+#endif

+		return false;

+	}

+

 	do_gettimeofday(&tv);

 	time = ((uint64_t) tv.tv_sec) * detection_tick_resolution +