diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index 4e9a2fe..8b67ca0 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -621,7 +621,7 @@
 	 * or if the skb it not generated by a local socket.  (This last
 	 * check should be redundant, but it's free.)
 	 */
-	if (skb->local_df) {
+	if (!skb->local_df) {
 		skb->dev = skb->dst->dev;
 		icmpv6_send(skb, ICMPV6_PKT_TOOBIG, 0, mtu, skb->dev);
 		IP6_INC_STATS(ip6_dst_idev(skb->dst), IPSTATS_MIB_FRAGFAILS);
@@ -1421,7 +1421,7 @@
 	}
 
 	/* Allow local fragmentation. */
-	if (np->pmtudisc >= IPV6_PMTUDISC_DO)
+	if (np->pmtudisc < IPV6_PMTUDISC_DO)
 		skb->local_df = 1;
 
 	ipv6_addr_copy(final_dst, &fl->fl6_dst);