Re: [Idr] WGLC on draft-ietf-idr-as-private-reservation-00

[Richard A Steenbergen <[e-mail]>]

On Fri, Dec 21, 2012 at 12:22:20PM -0500, Jeff Wheeler wrote:
> On Fri, Dec 21, 2012 at 9:05 AM, Jon Mitchell <[e-mail]> wrote:
> > Isn't this like asking why folks leak RFC 1918 space into the global
> > routing table, /32's into the routing table, etc... ?  Mis-configuration
> > seems obvious, but I don't think a poll is a fruitful exercise.
> 
> Haven't we asked if there is ever likely to be a reason for 
> intentionally leaking private ASNs to the "Internet?"  If it's useful 
> to know that information, it seems illogical not to ask if anyone is 
> doing it intentionally today, and if they are, why?
> 
> nLayer is doing this.  If you want to know if it's a mistake or 
> intentional, I'm sure they will answer.

I think you're confused, nLayer has never intentionally leaked private 
ASNs to the Internet. If this ever happens, it is because of the very 
limited toolset available to manipulate AS-PATHs on routers (i.e. there 
are plenty of ways that "remove-private" will fail to strip every 
private ASN).

Of course, the negative impact of leaking private ASNs to the Internet 
is pretty darn minimal, so this issue doesn't really make my list of 
things I care about.

-- 
Richard A Steenbergen <[e-mail]>       http://www.e-gerbil.net/ras
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