Shane,

See below.

On Wed, Nov 14, 2012 at 11:33 PM, Shane Amante <[email protected]> wrote:
> Chris,
>
> See below.
>
> On Nov 14, 2012, at 3:18 PM, Christopher Morrow 
> <[email protected]> wrote:
> [--snip--]
>> To date there is a draft which discusses route leaks:
>>  
>> <http://tools.ietf.org/html/draft-foo-sidr-simple-leak-attack-bgpsec-no-help-02>
>>
>> where the authors have attempted to describe one (or many possible)
>> situations which are called 'route leaks'. They also attempt to
>> outline security issues which are follow-on effects of the situation
>> described.
>>
>> SIDR attempted to look at route-leaks and came up a bit stymied, they
>> asked IDR for some assistance with the issue, IDR pushed back to GROW
>> to decide:
>>  1) What is a 'route leak' (perhaps the above draft identifies one
>> examplar to be used in that definition)
>
> See aforementioned draft.  It's the most _concise_ definition of the problem, 
> as observed repeatedly in the Internet.
>
>
>>  2) Are 'route leaks' a problem that Operations folks care about
>
> Yes!
>
>
>>  3) Should IDR (or the IETF proper) address 'route leaks' with some
>> form(s) of fix action.
>
> WRT "Should IDR" ... that's like Henry Ford asking what color "Model T" I'd 
> like, right?  Look, no offense to the folks in IDR :-), but as with every 
> other WG their present charter is narrowly defined to 'enhancements to BGP'.  
> I would hope that _when_the_time_comes_ we remain open-minded about 
> conducting a thorough evaluation of the solution space, before deciding to 
> further refine one, or more, of those solutions to a standard, or set of 
> standards.  So, presently, I would not be in favor of exclusively asking IDR 
> to fix 'route leaks', given the concerns I've raised above.
>

apologies, I was a bit rushed in my message (and I note my first
question was poorly chosen, as well) but I had meant to say that the
placement of a  solution doesn't have to be in bgp (so doesn't have to
involve IDR), if the WG here takes a look at sees other directions to
go.

> FWIW, I'm not clear on what you're proposing with "the IETF proper" ... so I 
> can't say "yes" to that option either.
>

'should the ietf care about this problem, and spend resources
attempting to provide solutions?'

is that better? I'm really asking whether or not there is a problem
and if we (ietf in general) can get a solution (or even the
requirements for a solution?) defined...

-chris

>
>> The end result of the above 3 steps is to push back into IDR one of
>> two action requests:
>>  1) "Yes, route leaks are a problem, please fix them."
>>     or
>>  2) "No, route leaks are not a problem, take no action."
>>
>> If #1 above is the answer, and IDR decides that changes to the BGP
>> protocol are warranted (or are a possible solution to the problem)
>> then SIDR has agreed to do what they can to 'secure' the bits
>> added/changed/used in that endeavor.
>
> Dare I ask what happens if IDR decides they do not have an answer?
>
>
>> Could we have some discussion on-list about this problem, and some
>> discussion about whether or not the draft referenced above fits the
>> definition we would like to use for 'route leak'?
>
> Um, yes, but then again I'm a co-author, so clearly you should take this 
> answer with a healthy dose of salt.  :-)
>
>
>> I would also like
>> the authors of the draft to decide where they would like to take their
>> draft:
>>   1) SIDR
>>   2) IDR
>>   3) GROW
>>   4) other
>
> IMO, since you're asking GROW, the answer should hopefully present itself.  
> :-)
>
> -shane
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