--- linux-2.3.99pre2/net/ipv4/ip_input.c	Sun Feb 27 01:34:27 2000
+++ linux/net/ipv4/ip_input.c	Thu Mar 23 15:45:37 2000
@@ -162,7 +162,8 @@
 	read_lock(&ip_ra_lock);
 	for (ra = ip_ra_chain; ra; ra = ra->next) {
 		struct sock *sk = ra->sk;
-		if (sk && sk->num == protocol) {
+      /* If socket is bound to an interface, only report the packet if it came from that interface. */
+		if (sk && sk->num == protocol && ((sk->bound_dev_if == 0) || (sk->bound_dev_if == skb->dev->ifindex))) {
 			if (skb->nh.iph->frag_off & htons(IP_MF|IP_OFFSET)) {
 				skb = ip_defrag(skb);
 				if (skb == NULL) {