BGP ist often used in order to Censor the Internet on behalf of the government. <\/p>\n
From the technical side this is an interesting process when asking yourself “How would a government shutdown the Internet if they had\/want to – and is this even possible?”<\/p>\n
Well, the current situation in Egypt shows that a goverment backened takedown is possible.<\/p>\n
From the bgpmon blog: http:\/\/bgpmon.net\/blog\/?p=450<\/a><\/p>\n \nDifferent media are reporting that Internet and other forms of electronic communications are being disrupted in Egypt. Presumably after a government order in response to the protests. Looking at BGP data we can confirm that according to our analysis 88% of the \u2018Egyptian Internet\u2019 has fallen of the Internet. In this post I\u2019ll share some observations I made with regards to the reachability of Egyptian networks and providers.\n<\/p><\/blockquote>\n The article lists the biggest ISPs in Egypt and the current prefix changes made. Using the Autonomous System Nr. (ASN), you can visualize the BPG route announcements.<\/p>\n The most noteable prefix changes involve AS8452 AS24863 and AS36992.<\/p>\n Go to http:\/\/bgplay.routeviews.org<\/a> (requires Java) and set the timeframe around 2011-01-27 at around 10PM and watch. By the way, one of the most noteable events in the last years involving BGP was the failed censorship of youtube by Pakistan Telecom<\/a>. I recommend watching this video before looking at the Egypt situation because it includes commentary on what is happening.<\/p>\n","protected":false},"excerpt":{"rendered":" BGP ist often used in order to Censor the Internet on behalf of the government. From the technical side this is an interesting process when asking yourself “How would a government shutdown the Internet if they had\/want to – and is this even possible?” Well, the current situation in Egypt shows that a goverment backened … <\/p>\n
\nWith all prefixes removed, LINKdotNET-AS<\/strong> using AS24863<\/strong> and the Prefix 62.135.0.0\/17<\/strong> shows the greatest impact.<\/p>\n