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NANOG Meeting Presentation Abstract

Diagnosing the Location of Bogon Filters
Meeting: NANOG40
Date / Time: 2007-06-06 10:20am - 10:40am
Room: Grand Ballroom
Presenters: Speakers:

Randy Bush, IIJ

Randy Bush works as Principal Scientist at Internet Initiative Japan. Previously he spent a bit over a year at AT&T doing research and working on network architecture. He got some operational experience from being on the founding team at Verio, a backbone provider, from which he graduated as VP of Networking after five years. Before that, he was the principal engineer of RAINet, an ISP in Oregon and Washington, which was Verio's first acquisition. As PI for the Network Startup Resource Center, an NSF-supported pro bono effort, he has been involved for some years with the deployment and integration of appropriate networking technology in the developing world.
Abstract: We describe a methodology which targets the identification of wrongly configured route filters by Internet Service Providers (ISPs). A current problem for network operators is that newly announced IP address space (from previously unused IP blocks) is often not reachable as it is still blocked by certain ISPs. It is common for network operators to filter out address space which is known to be unallocated (bogon addresses). However, as allocated address space changes over time these bogons might become legitimately announced prefixes. Unfortunately, some ISPs still do not configure their bogon filters via lists published by the RIRs, instead choosing to manually configure filters. Therefore it would be desirable to test whether filters block IP blocks, before this address space is allocated to ISPs and/or end users. In this article we present a methodology that detects where wrongly configured filters exists, so that ISPs can be contacted and asked to update their filters.
Files: youtubeDiagnosing the Location of Bogon Filters
pdfRandyBush-BogonFilters(PDF)
Sponsors: None.

Back to NANOG40 agenda.

NANOG40 Abstracts

  • Panel: Higher Speed Ethernet - 40G vs 100G
    Moderators:
    Richard A. Steenbergen, nLayer Communications; Panelists:
    Greg Hankins, Force10 Networks; Drew Perkins, Infinera; Igor Gashinsky, Yahoo!; Lane PattersonEquinix; .
  • Panel: Higher Speed Ethernet - 40G vs 100G
    Moderators:
    Richard A. Steenbergen, nLayer Communications; Panelists:
    Greg Hankins, Force10 Networks; Drew Perkins, Infinera; Igor Gashinsky, Yahoo!; Lane PattersonEquinix; .
  • Panel: Higher Speed Ethernet - 40G vs 100G
    Moderators:
    Richard A. Steenbergen, nLayer Communications; Panelists:
    Greg Hankins, Force10 Networks; Drew Perkins, Infinera; Igor Gashinsky, Yahoo!; Lane PattersonEquinix; .
  • Panel: Higher Speed Ethernet - 40G vs 100G
    Moderators:
    Richard A. Steenbergen, nLayer Communications; Panelists:
    Greg Hankins, Force10 Networks; Drew Perkins, Infinera; Igor Gashinsky, Yahoo!; Lane PattersonEquinix; .
  • Panel: Higher Speed Ethernet - 40G vs 100G
    Moderators:
    Richard A. Steenbergen, nLayer Communications; Panelists:
    Greg Hankins, Force10 Networks; Drew Perkins, Infinera; Igor Gashinsky, Yahoo!; Lane PattersonEquinix; .
  • ISP Security
    Moderators:
    Danny McPherson, Arbor Networks; Kevin Lanning, AT&T;
  • ISP Security
    Moderators:
    Danny McPherson, Arbor Networks; Kevin Lanning, AT&T;
  • BGP Tools
    Speakers:
    Daniel Massey, Colorado State University;
  • Community Meeting
    Speakers:
    Randy BushActing SC Chair; .
    Steve FeldmanPC Chair; .
    Aleksandr PilosovActing MLC Chair; .
    Betty BurkeNANOG Project Chair at MERIT; .
  • Community Meeting
    Speakers:
    Randy BushActing SC Chair; .
    Steve FeldmanPC Chair; .
    Aleksandr PilosovActing MLC Chair; .
    Betty BurkeNANOG Project Chair at MERIT; .
  • Community Meeting
    Speakers:
    Randy BushActing SC Chair; .
    Steve FeldmanPC Chair; .
    Aleksandr PilosovActing MLC Chair; .
    Betty BurkeNANOG Project Chair at MERIT; .
  • Community Meeting
    Speakers:
    Randy BushActing SC Chair; .
    Steve FeldmanPC Chair; .
    Aleksandr PilosovActing MLC Chair; .
    Betty BurkeNANOG Project Chair at MERIT; .
  • Real-time Blackhole Analysis with Hubble
    Speakers:
    Ethan Katz-Bassett, University of Washington; Harsha V. MadhyasthaUniversity of Washington; .
    John P. JohnsonUniversity of Washington; .
    Arvind KrishnamurthyUniversity of Washington; .
    Thomas AndersonUniversity of Washington; .
  • Real-time Blackhole Analysis with Hubble
    Speakers:
    Ethan Katz-Bassett, University of Washington; Harsha V. MadhyasthaUniversity of Washington; .
    John P. JohnsonUniversity of Washington; .
    Arvind KrishnamurthyUniversity of Washington; .
    Thomas AndersonUniversity of Washington; .
  • Real-time Blackhole Analysis with Hubble
    Speakers:
    Ethan Katz-Bassett, University of Washington; Harsha V. MadhyasthaUniversity of Washington; .
    John P. JohnsonUniversity of Washington; .
    Arvind KrishnamurthyUniversity of Washington; .
    Thomas AndersonUniversity of Washington; .
  • Real-time Blackhole Analysis with Hubble
    Speakers:
    Ethan Katz-Bassett, University of Washington; Harsha V. MadhyasthaUniversity of Washington; .
    John P. JohnsonUniversity of Washington; .
    Arvind KrishnamurthyUniversity of Washington; .
    Thomas AndersonUniversity of Washington; .
  • Real-time Blackhole Analysis with Hubble
    Speakers:
    Ethan Katz-Bassett, University of Washington; Harsha V. MadhyasthaUniversity of Washington; .
    John P. JohnsonUniversity of Washington; .
    Arvind KrishnamurthyUniversity of Washington; .
    Thomas AndersonUniversity of Washington; .

 

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