On Fri, 22 Jun 2012 08:38:04 -0500, Simon Perreault <simon.perrea...@viagenie.ca> wrote:


This is ridiculous. You should be allocating all your PtP links out of a single prefix protected by an ACL at your border. All packets to the PtP prefix need to be dropped. You should be doing this no matter the size of your PtP links. The attack is impossible with good operational practices.

If I was building from the ground up I might be inclined to agree, but if you're adding IPv6 to an existing infrastructure it isn't always that feasible. We have many physical locations and many borders. Not every border consists of equipment that could properly ACL this, and an ISP can't just throw firewalls on the edges of their network.

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