--- zzzz-none-000/linux-4.9.231/net/ipv4/ip_forward.c	2020-07-22 07:10:54.000000000 +0000
+++ falcon-5590-729/linux-4.9.231/net/ipv4/ip_forward.c	2022-03-30 12:03:35.000000000 +0000
@@ -39,6 +39,10 @@
 #include <net/route.h>
 #include <net/xfrm.h>
 
+#ifdef CONFIG_AVM_PA
+#include <avm/pa/avm_pa.h>
+#endif
+
 static bool ip_exceeds_mtu(const struct sk_buff *skb, unsigned int mtu)
 {
 	if (skb->len <= mtu)
@@ -71,6 +75,10 @@
 	if (unlikely(opt->optlen))
 		ip_forward_options(skb);
 
+#ifdef CONFIG_AVM_PA
+	avm_pa_mark_routed(skb);
+#endif
+
 	return dst_output(net, sk, skb);
 }