Janos Mohacsi Network Engineer, Research Associate, Head of Network Planning and Projects NIIF/HUNGARNET, HUNGARY Key 70EF9882: DEC2 C685 1ED4 C95A 145F 4300 6F64 7B00 70EF 9882 On Wed, 20 May 2009, JiangSheng 66104 wrote:
A document such as this is very helpful and I thank the authors. One concern I have about this kind of model is the widespread ICMP filtering in IPv4 networks. I see many ISPs that filter ICMPv6 just as they do with IPv4 and has been causing problmes. This is especially important in a tunnel based solution such as this.Hi, Seiichi, thanks for your reply. I understand your concern. Yes, ICMP fliter is a problem. We will take this in count later.
They should have a look at this draft: http://tools.ietf.org/html/rfc4890 Best Regards, Janos Mohacsi