RFC: BOGONs over BGP, adding some ranges

Glenn Kelley glenn at connectivity.engineer
Wed Aug 31 02:21:11 UTC 2022

I would love to see this via BGP personally
Not sure of anything that it could cause  - and folks could filter out
something if needed/required

*Glenn S. Kelley, *I am a Connectivity.Engineer
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On Tue, Aug 30, 2022 at 12:15 PM James Shank <jshank at cymru.com> wrote:

> Dear NANOG!
> As many of you know, Team Cymru runs a free service delivering updated
> BOGONS to networks around the world. We've been doing this for decades
> at this point. For more information about this service, please see
> https://www.team-cymru.com/bogon.
> Recently, we've discussed internally a discrepancy between our BGP based
> feed and the other formats we deliver for our Traditional BOGONS feed.
> For historic reasons, we previously omitted delivery of some ranges that
> are BOGONS from our BGP advertisements. We are considering adding the
> below ranges back in, but want to hear feedback from the community on
> these ranges prior to advertising them, out of an abundance of caution.
> The below ranges are what we are currently considering advertising:
> 0/8 (this one we already have concluded is safe as it is already
> advertised in our "FULL BOGONS" set.)
> 127/8
> 224/4
> 240/4
> Note that 224/4 and 240/4 may be aggregated differently in our
> advertisement, but are broken out here to facilitate discussion.
> So, fellow NANOGers, what say ye? I would love to hear your feedback,
> pro or con, well-reasoned with data points or general "argh! there be
> dragons!" sentiments.
> Looking forward to seeing folks in Hollywood for N86!
> Cheers!
> James
> --
> *James Shank*
> Chief Architect of Community Services and Sr. Security Evangelist
> e: jshank at cymru.com
> o: +1 847 378-3365
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