Re: [OPSAWG] ICMP blackhole problem ID.

On 7/11/12 11:30 PM, Vincent Roca wrote:
> Hello Joel,
>
> Thanks a lot for the pointer to the filtering draft, it's useful.
>
> This I-D discusses with a lot of details, for each and every ICMP(v4/v6) message type, why and how
> a router should filter out (or rate-limit)  this message, as well as the consequences of such rules. This
> is very useful to understand some of the ICMP related policies that network administrators may deploy.
>
> In our I-D we take the opposite standpoint. We try to understand, from the end-user point of view,
> what's going on when ICMP malfunctions on a given path. This end-user tries to infer as much
> information as possible (by default using only his own host, without any vantage points in the core
> network), for instance to localize the router/ISP(s) that produce the problems. Whether the network
> administrators have good reason to apply such filtering policies is a different matter, especially as it
> can also result from configuration errors. So we think that these two documents nicely complement
> each other. Do you agree with us?
Detecting the existence of path mtu discovery failure is important. I 
believe they are complementary, probably to the  point of overlap.
> In any case, thanks for the feedback!
>
> Cheers,
>
>    The authors
>
>
> On July 11, 2012, 16:13, joel jaeggli wrote:
>
>> Seems like there is substantial overlap with
>>
>> http://tools.ietf.org/html/draft-ietf-opsec-icmp-filtering-03
>>
>> On 7/11/12 5:42 AM, Ludovic Jacquin wrote:
>>> Hi,
>>>
>>> we have submitted an ID for the 84th IETF meeting, here is a quick summary:
>>>
>>> ICMP is a key protocol to exchange control and error messages over the Internet.  Unfortunately it is frequent that some routers along a given path do not correctly process this protocol.  This document provides a taxonomy of the problem in order to help an end user who suspects ICMP-related problems to better understand the situation, and possibly identify the faulty router(s).
>>>
>>> 2 usefull links if you are interested:
>>> the ID: http://datatracker.ietf.org/doc/draft-jacquin-opsawg-icmp-blackhole-problem/
>>> the globecom'12 paper: http://hal.inria.fr/hal-00695746/en/
>>>
>>> Feedbacks are welcome.
>>>
>>> Cheers,
>>> Ludovic.
>>> _______________________________________________
>>> OPSAWG mailing list
>>> OPSAWG@ietf.org
>>> https://www.ietf.org/mailman/listinfo/opsawg
>>>
>> _______________________________________________
>> OPSAWG mailing list
>> OPSAWG@ietf.org
>> https://www.ietf.org/mailman/listinfo/opsawg
>