nanog mailing list archives

RE: Deaggregating for emergency purposes


From: "Phil Rosenthal" <pr () isprime com>
Date: Tue, 6 Aug 2002 14:07:13 -0400


IRR pollution helps because all of *MY* uplinks filter, even if theirs
don't.
--Phil

-----Original Message-----
From: owner-nanog () merit edu [mailto:owner-nanog () merit edu] On Behalf Of
nanog () missnglnk com
Sent: Tuesday, August 06, 2002 1:57 PM
To: nanog () merit edu
Subject: Re: Deaggregating for emergency purposes



On Tue, Aug 06, 2002 at 01:29:58PM -0400, Phil Rosenthal wrote:

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.

Yes, and during that time, you could have:
a) Gone to CompUSA and bought some translation software.
b) Installed Windows and Office XP.
c) E-mailed some friends in fluid Spanish/German/Italian.
d) Bought a $10 international calling card.
e) Gone back to CompUSA and bought some text to speech software.
f) Put it all together in an e-mail to the ISP's upstreams,
   and blasted the NOC's phone with a translated message of
   "Stop announcing 192.168.0.0/16, it is my space".

And once again, if the ISPs in question receiving the routes actually
filtered based on IRR data, the route would not have made it in the
first place, correct? So how is IRR pollution going to help this if
there's no IRR filtering policy to begin with?

--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


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


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