RE: Deaggregating for emergency purposes

["Phil Rosenthal" <pr () isprime com>]

Most ISPs that build off of the IRR's do it nightly.  I am talking about
10 /24's out of /19, and I'm not announcing any of the /24's -- and wont
unless there is an emergency, and only then would it be temporary.

--Phil

-----Original Message-----
From: owner-nanog () merit edu [mailto:owner-nanog () merit edu] On Behalf Of
Omachonu Ogali
Sent: Tuesday, August 06, 2002 4:00 AM
To: nanog () merit edu
Subject: Re: Deaggregating for emergency purposes



What about announcing and registering with your IRR, more-specific
routes for the period that the problem ONLY exists, instead of being
lazy?

If all else fails, break out Outlook and your favorite translator,
because last time I checked, speaking English was not a requirement to
run a network. Even if most of you do, this is not a "Majority Rules"
situation.

On Mon, Aug 05, 2002 at 10:47:33PM -0700, john () chagresventures com
wrote:
> get on the bandwaggon that filtering is a good thing ?? :)
>
> at some point some transit is going to listen and drop the 
> announcement.
>
> Lets take an example.  Deep Dark middle of asia, someone starts 
> announcing a /24 of yours.  Their upstream takes the packet, and so 
> forth.  At some point they will touch a NSP or ISP (international 
> service provider) and you can get things dropped their.

Yes. End of story. Go directly to the finish diamond at the end of your
flowchart. If the next step in your flowchart is "pollute IRRs with
3592375238957235893275839572 /32s", please return your maintainer
object.
 
> Your pushing out a /24 will help slurp some of the traffic towards 
> you, but not all.
>
> Personally I have deagged some prefixes to cause a DOS/DDOS towards a
> particular address to route down a slow connection I had.  Sacrifice
> one link, to keep customers running on the others.  But thats
different.

Yes, but you removed it later on, correct?
 
> Its about networking, the people kind, at this point.
>
> cheers
>
> john brown
> chagres technologies, inc
>
> On Mon, Aug 05, 2002 at 09:00:55PM -0400, Phil Rosenthal wrote:
> > But the question is, what do you do if it's coming from somewhere 
> > with a difficult to contact NOC, and their upstream is difficult to 
> > contact as well?
> >
> > --Phil
> >
> > -----Original Message-----
> > From: John M. Brown [mailto:jmbrown () ihighway net]
> > Sent: Monday, August 05, 2002 8:12 PM
> > To: Phil Rosenthal
> > Cc: nanog () merit edu
> > Subject: Re: Deaggregating for emergency purposes
> >
> >
> > Hmm, this would be a "Bad Idea" (TM) (C) 2002, DMCA Protected
> >
> > Having had this happen to me several different times, I'd have to
> > recommend, calling the NOC of the advertising party. as the pref'd
way
> > of handling it.
> >
> > On Mon, Aug 05, 2002 at 06:41:22PM -0400, Phil Rosenthal wrote:
> > > I am currently announcing only my aggregate routes, but I have 
> > > lately
> > > thought about the possibility of someone mistakenly, or
maliciously, 
> > > announcing more specifics from my space. The best solution for an 
> > > emergency response to that (that I can think of), is registering
all 
> > > of the /24's that make up my network, so if someone should
announce a 
> > > more-specific, I can always announce the most specific that would
be 
> > > accepted (assuming they don't announce the /24's too, it should be
a 
> > > problem avoided)
> > >
> > > Does anyone else have any other ideas on ways to quickly deal with
> > > someone else announcing your more specifics, since contacting
their 
> > > NOC is likely going to take a long time...
> > >
> > > --Phil

-- 
Omachonu Ogali
missnglnk () informationwave net
http://www.informationwave.net