nanog mailing list archives

Re: Who is announcing bogons?

From: Sean Donelan <sean () donelan com>
Date: Mon, 28 Apr 2003 21:53:51 -0400 (EDT)


On Mon, 28 Apr 2003, Rob Thomas wrote:

] | If you ask providers, they all say they implement positive prefix
] | list filters on all their customers.
]
] That isn't my (recent) experience at all.  Quite the reverse, in fact!

Agreed.  When I was working for a hosting provider, the filters were
inconsistently applied even within the disparate pipes purchased from
the same provider.  It really depended entirely on the ISP engineer
who configured the link.  This was the case with multiple providers.


Why do we expect the same ISP engineers to be better at configuring
negative lists or keeping them up to date?

According to Craig Labovitz's study published at Microsoft
http://www.research.microsoft.com/research/pubs/view.aspx?msr_tr_id=MSR-TR-2000-74
100% of the ISP's surveyed filter inbound customer route announcements.

Current thread:

Re: Get as much IP space as you ever dreamed of, was: Re: Looking to buy IPv4 addresses from class C swamp Brandon Butterworth (Apr 28)
- <Possible follow-ups>
- RE: Get as much IP space as you ever dreamed of, was: Re: Looking to buy IPv4 addresses from class C swamp McBurnett, Jim (Apr 28)
  - Re: Get as much IP space as you ever dreamed of, was: Re: Looking to buy IPv4 addresses from class C swamp Jack Bates (Apr 28)
- RE: Get as much IP space as you ever dreamed of, was: Re: Looking to buy IPv4 addresses from class C swamp McBurnett, Jim (Apr 28)
  - Re: Get as much IP space as you ever dreamed of, was: Re: Looking to buy IPv4 addresses from class C swamp Jack Bates (Apr 28)
    - Re: Get as much IP space as you ever dreamed of, was: Re: Looking to buy IPv4 addresses from class C swamp Rob Thomas (Apr 28)
    - Who is announcing bogons? Sean Donelan (Apr 28)
    - Re: Who is announcing bogons? Rob Thomas (Apr 28)
    - Re: Who is announcing bogons? Richard Cox (Apr 28)
    - Re: Who is announcing bogons? Rob Thomas (Apr 28)
    - Re: Who is announcing bogons? Sean Donelan (Apr 28)
    - Re: Who is announcing bogons? Rob Thomas (Apr 28)
    - Re: Who is announcing bogons? babylon (Apr 28)
    - RE: Who is announcing bogons? David Luyer (Apr 29)
    - Re: Who is announcing bogons? Henry Kilmer (Apr 30)
    - Re: Who is announcing bogons? Jack Bates (Apr 28)
    - Re: Who is announcing bogons? Paul Vixie (Apr 28)
    - Re: Who is announcing bogons? Margie (Apr 28)
    - Re: Who is announcing bogons? Sean Donelan (Apr 29)
    - The in-your-face hijacking example, was: Re: Who is announcing bogons? kai (Apr 29)
    - Re: The in-your-face hijacking example, was: Re: Who is announcing bogons? Sean Donelan (Apr 29)

(Thread continues...)