patch-2.4.19 linux-2.4.19/net/ipv4/ipip.c

• Lines: 13
• Date: Fri Aug 2 17:39:46 2002
• Orig file: linux-2.4.18/net/ipv4/ipip.c
• Orig date: Wed Oct 17 14:16:39 2001

diff -urN linux-2.4.18/net/ipv4/ipip.c linux-2.4.19/net/ipv4/ipip.c
@@ -572,7 +572,11 @@
 		goto tx_error;
 	}
 
-	mtu = rt->u.dst.pmtu - sizeof(struct iphdr);
+	if (tiph->frag_off)
+		mtu = rt->u.dst.pmtu - sizeof(struct iphdr);
+	else
+		mtu = skb->dst ? skb->dst->pmtu : dev->mtu;
+
 	if (mtu < 68) {
 		tunnel->stat.collisions++;
 		ip_rt_put(rt);