IPv6 : ICMPV6_DEST_UNREACH type with ICMPV6_NOROUTE code

[Robert Olsson <Robert.Olsson@xxxxxxxxxxx>]

Seong Moon writes:

 > I found that when the kernel has no forwarding entry of a packet,
 > the kernel sends an ICMPV6_DEST_UNREACH icmp message with
 > ICMPV6_ADDR_UNREACH code  to the source of the packet.
 > 
 > But According to RFC 2463, If the kerenl has no forwarding entry of a
 > packet,
 > the kernel must send an ICMPV6_DEST_UNREACH icmp message with ICMPV6_NOROUTE
 > code.
 > How about you ? Am I right ?

 I think you are...

--- linux/net/ipv6/route.c.030508       2003-03-24 23:01:14.000000000 +0100
+++ linux/net/ipv6/route.c      2003-05-09 13:29:31.000000000 +0200
@@ -1166,7 +1166,7 @@
 int ip6_pkt_discard(struct sk_buff *skb)
 {
        IP6_INC_STATS(Ip6OutNoRoutes);
-       icmpv6_send(skb, ICMPV6_DEST_UNREACH, ICMPV6_ADDR_UNREACH, 0, skb->dev);
+       icmpv6_send(skb, ICMPV6_DEST_UNREACH, ICMPV6_NOROUTE, 0, skb->dev);
        kfree_skb(skb);
        return 0;
 }


 Cheers.
                                                --ro