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Addressing Prefix Reachability Issues

This overview discusses the critical issue of IP address reachability, as presented by Frank Salanitri, Project & Systems Services Manager at APNIC. The increasing prevalence of outdated filters and blacklists leads to legitimate traffic being blocked, especially as IPv4 space runs low. APNIC's Resource Quality Assurance initiative aims to proactively improve these conditions through collaboration, community awareness, and education. By enhancing the accuracy of the Whois Database and reinforcing relationships with prominent organizations, we can work together to tackle these filtering challenges.

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Addressing Prefix Reachability Issues

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  1. Addressing Prefix Reachability Issues Frank Salanitri Project & Systems Services Manager, APNIC

  2. Overview • Background • The problem • APNIC Resource Quality Assurance • Scope • Challenges • Strategy

  3. Background • IP address gets filtered for various reasons • Bogon • Bad behaviour • Security/access policies • Most prevalent form of IP address filters • Route filtering • Application filtering, esp. Mail • Firewall filtering

  4. The Problem • Legitimate internet traffic fails to reach the destination due to: • Outdated filters • Outdated black list / bogon list reference • RIR blamed for allocating ‘bad’ blocks • Situation worsens as IPv4 depletes • More bad blocks get uncovered • Prefix gets recycled

  5. APNIC Resource Quality Assurance • APNIC: more proactive, long-term strategy • Combined effort • Collaboration • Education • Whois Database quality • Establish procedures for prefix testing and filter removal

  6. RQA Strategy • Community awareness campaign • Build relationships with reputable organizations that maintain bogon/black list • Keep the Whois Database accurate • Actively remind resource holders to update their data

  7. We need your help, so let’s work together Thank you frank@apnic.net

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