64.0.0.0/8 etc. [was: Re: BGP Question - how do work around.. .]

Paul Schultz PSchultz at corp.darwin.net
Tue Feb 27 23:36:08 UTC 2001



I think we're talking about filtering the 64.0.0.0/8 prefix, EXACT prefix.
That wouldn't block anyone from reaching anything as long as you only filter
the /8 and not any of the more specific advertisements.

My company's got a /16, a /17, and a /18 out of 64/8 and I *WANT* people to
filter out the annoying 64.0.0.0/8 prefix that much of my traffic may be
destined for if something explodes on my end and my routes get withdrawn.


Paul

-----Original Message-----
From: Shawn McMahon [mailto:smcmahon at eiv.com]
Sent: Tuesday, February 27, 2001 6:25 PM
To: nanog at merit.edu
Subject: Re: 64.0.0.0/8 etc. [was: Re: BGP Question - how do work
around...]


On Tue, Feb 27, 2001 at 08:01:46AM -0800, Christian Nielsen wrote:
> 
> > For 64.0.0.0/8 this seems to have happened in the meantime... but now
> > there's a route for 62.0.0.0/8 (the RIPE equivalent of 64.0.0.0/8),
sigh.
> 
> i dont know why you even allow 64/8 and/or 62/8 into your network. Filter
> them...

Aren't many Earthlink dialups in 64/8?

Filtering that would mean his employees couldn't get Sprint DSL, and
prevent millions of potential customers from reaching his web servers.

That's not smart business.  It's called "cutting off your nose to spite
your face."





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