[34590] in North American Network Operators' Group

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Re: Using unallocated address space

daemon@ATHENA.MIT.EDU (Deepak Jain)
Tue Feb 13 12:11:53 2001

Date: Tue, 13 Feb 2001 11:58:40 -0500 (EST)
From: Deepak Jain <deepak@ai.net>
To: "Stephen J. Wilcox" <steve@opaltelecom.co.uk>
Cc: Roy <garlic@garlic.com>, nanog@merit.edu
In-Reply-To: <Pine.LNX.4.10.10102131644580.26565-100000@rem.opaltelecom.co.uk>
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Errors-To: owner-nanog-outgoing@merit.edu



You can configure the BGP feed to set next hop to an unused interface or
null0 or (your hardware's efficient null spot). The idea of BGP feed, if I
am not mistaken, is to allow dynamic configuration/reconfiguration as
blocks are allocated to keep from having to revise hundreds of routers'
filters.

In practice, I am not sure I'd feel comfortable with it, but surely many
would use it.

Deepak Jain
AiNET


On Tue, 13 Feb 2001, Stephen J. Wilcox wrote:

> 
> Only I drop my unallocated/private packets at my core routers, if you set
> up routes to ARIN/whoever then I would transmit out those packets and my
> transits would carry them for me if I dont connect directly..
> 
> extra traffic all round really. why not just let the core routers bin the
> rogue packets? (ip route 0.0.0.0 0.0.0.0 null0)
> 
> Steve
> 
> --
> Stephen J. Wilcox
> Internet Manager, Opal Telecom
> http://www.opaltelecom.co.uk/
> Tel: 0161 222 2000
> Fax: 0161 222 2008
> 
> On Tue, 13 Feb 2001, Roy wrote:
> 
> > 
> > It would seem to me that ARIN and its counterparts should get together and
> > provide a "blackhole" BGP feed (the NBL?)  where all packets destined for
> > unallocated, restricted, or private space go bye-bye.
> > 
> > 
> > 
> > 
> > 
> 
> 
> 



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