--- zzzz-none-000/linux-2.6.28.10/net/ipv6/ip6_tunnel.c	2009-05-02 18:54:43.000000000 +0000
+++ fusiv-7390-686/linux-2.6.28.10/net/ipv6/ip6_tunnel.c	2012-02-14 14:37:49.000000000 +0000
@@ -849,6 +849,7 @@
 	struct ip6_tnl *t = netdev_priv(dev);
 	struct net_device_stats *stats = &t->dev->stats;
 	struct ipv6hdr *ipv6h = ipv6_hdr(skb);
+	struct iphdr  *iph = ip_hdr(skb);
 	struct ipv6_tel_txoption opt;
 	struct dst_entry *dst;
 	struct net_device *tdev;
@@ -886,7 +887,7 @@
 		mtu = IPV6_MIN_MTU;
 	if (skb->dst)
 		skb->dst->ops->update_pmtu(skb->dst, mtu);
-	if (skb->len > mtu) {
+	if (skb->len > mtu && (iph->frag_off & htons(IP_DF))) {
 		*pmtu = mtu;
 		err = -EMSGSIZE;
 		goto tx_err_dst_release;
@@ -931,6 +932,7 @@
 	ipv6_addr_copy(&ipv6h->daddr, &fl->fl6_dst);
 	nf_reset(skb);
 	pkt_len = skb->len;
+	skb->local_df =1;
 	err = ip6_local_out(skb);
 
 	if (net_xmit_eval(err) == 0) {
@@ -1327,7 +1329,7 @@
 	dev->mtu = ETH_DATA_LEN - sizeof (struct ipv6hdr);
 	dev->flags |= IFF_NOARP;
 	dev->addr_len = sizeof(struct in6_addr);
-	dev->features |= NETIF_F_NETNS_LOCAL;
+	dev->features |= NETIF_F_NETNS_LOCAL | NETIF_F_DF_RFC2473;
 }