Re: [OPSEC] noted: draft-dugal-opsec-protect-control-plane-00

Christopher Morrow <morrowc.lists@gmail.com> Fri, 05 February 2010 03:23 UTC

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From: Christopher Morrow <morrowc.lists@gmail.com>
To: John Kristoff <jtk@cymru.com>
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Subject: Re: [OPSEC] noted: draft-dugal-opsec-protect-control-plane-00
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On Wed, Feb 3, 2010 at 11:41 PM, John Kristoff <jtk@cymru.com> wrote:
> On Mon, 04 Jan 2010 21:31:07 -0800
> Joel Jaeggli <joelja@bogus.com> wrote:
>
>> I notes with interest today the initial publication of:
>>
>> http://tools.ietf.org/html/draft-dugal-opsec-protect-control-plane-00
>>
>> for which I am certain review and feedback would be greatly
>> appreciated.
>
> I realize there is a -01 version of this draft.  Nonetheless, this
> comment still applies.
>
> One of the major stumbling blocks in managing control plane filtering
> in my experience has been when a platform lacks sufficient diagnostic

yes, if you can block/limit it, you MUST be able to log that fact, and
count that fact. Otherwise it because exceptionally difficult to get a
tcpdump on that sonet link to your neighbor...

> capability such as control plane filter logging.  Perhaps some mention
> of this in the Design Trade-offs section might include some text
> highlighting this concern.  Rate limiting can be particularly
> troublesome when "bad" traffic starves the "good".

it might be nice to have special macros for 'bgp neighbors' or  'local
interfaces' or 'connected networks'. to make configuration management
easier... of course those could be called 'implementation details' but
:)

now I'll go read the doc, and hopefully provide some comments.

-Chris

>
> John
>
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