NIST IPv6 document

Tim Chown tjc at ecs.soton.ac.uk
Mon Jan 10 07:56:26 CST 2011


On 7 Jan 2011, at 15:12, Justin M. Streiner wrote:

> On Thu, 6 Jan 2011, Jeff Wheeler wrote:
> 
>> On Thu, Jan 6, 2011 at 8:47 PM, Owen DeLong <owen at delong.com> wrote:
>>> 1.      Block packets destined for your point-to-point links at your
>>>        borders. There's no legitimate reason someone should be
>> 
>> Most networks do not do this today.  Whether or not that is wise is
>> questionable, but I don't think those networks want NDP to be the
>> reason they choose to make this change.
> 
> Correct me if I'm wrong, but wouldn't blocking all traffic destined for your infrastructure at the borders also play havoc with PTMUD?  Limiting the traffic allowed to just the necessary types would seem like a reasonable alternative.

Recommendations for PTMUD-friendly filtering are described in RFC 4890.

Tim



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