[j-nsp] Problem with IPv6 ND and NS

[John Neiberger]

We're in the process of upgrading all of our MXs running older code,
but we haven't gotten to this router just yet. We are upgrading to
some flavor of 11.4, as I recall. I have someone working on getting a
capture, but I will grab what I can using "monitor traffic interface".

Thanks!
John

On Tue, Dec 24, 2013 at 3:08 AM,  <sthaug at nethelp.no> wrote:
>> I'm running into an odd problem that seems to be related to v6
>> neighbor discovery on an MX960 running 9.6R4. Here is a simplified
>> topology for explanation:
> ...
>> Have any of you run into this type of situation? it sure is starting
>> to look like a bug in this code where it isn't actually sending an NS
>> message upon the arrival of traffic destined for a neighbor not in the
>> cache.
>
> Sorry, never seen this. Getting a packet capture from the server
> sounds like a good idea - however, you should also be able to see
> any IPv6 NS/ND activity by using "monitor traffic interface ..."
> on the RouterB interface towards the host.
>
> Also, you might want to consider a newer JunOS release. 9.6 is EOL.
> Personally I would recommend at least 11.4R8.
>
> Steinar Haug, Nethelp consulting, sthaug at nethelp.no