https://wirez.top/tags/4271/Recent content in 4271 on WirezHugoenThu, 01 Jan 2026 00:00:00 +0000https://wirez.top/posts/aspath-length-traps-when-short-routes-risk-security/Thu, 01 Jan 2026 00:00:00 +0000https://wirez.top/posts/aspath-length-traps-when-short-routes-risk-security/<meta charset="utf-8"> <!-- wp:paragraph {"className":"std-text"} --> <!-- /wp:paragraph --> <!-- wp:paragraph {"className":"std-text"} --> <p class="std-text">Shorter <strong>AS_PATH lengths</strong> win route selection when other BGP criteria tie, per RFC 4271.</p> <!-- /wp:paragraph --> <!-- wp:paragraph {"className":"std-text"} --> <p class="std-text">In reality, actual reachability depends entirely on external <strong>filtering policies</strong> and <strong>RPKI validation</strong>, not just path metrics. As bogdancyber clarified on the NANOG mailing list in January 2026, conflating path brevity with trust creates dangerous blind spots in <strong>risk modeling</strong> for potential hijacks.</p>