--- zzzz-none-000/linux-4.4.60/net/ipv4/ip_forward.c	2017-04-08 07:53:53.000000000 +0000
+++ dragonfly-4020-701/linux-4.4.60/net/ipv4/ip_forward.c	2018-11-08 13:36:17.000000000 +0000
@@ -39,6 +39,10 @@
 #include <net/route.h>
 #include <net/xfrm.h>
 
+#ifdef CONFIG_AVM_PA
+#include <linux/avm_pa.h>
+#endif
+
 static bool ip_exceeds_mtu(const struct sk_buff *skb, unsigned int mtu)
 {
 	if (skb->len <= mtu)
@@ -72,6 +76,9 @@
 		ip_forward_options(skb);
 
 	skb_sender_cpu_clear(skb);
+#ifdef CONFIG_AVM_PA
+	avm_pa_mark_routed(skb);
+#endif
 	return dst_output(net, sk, skb);
 }