Libya goes dark

After a week of flaky Internet connectivity, traffic to and from Libya has come to a halt. The country is effectively offline; as is shown very clearly by this Google Transparency report.
 

Image courtesy of Google


 

Details of how this shutdown was achieved are few right now. It seems that routes to the country are still being advertised, but there is simply no response from any destination inside the country, the traffic is almost certainly being “blackholed“. This will also mean that Internet users inside Libya are disconnected from the outside world as they will not receive any response to their Internet requests.

 

Every Libyan website (by this I mean sites hosted in Libya, www.bit.ly for example is still live) that I tested was unreachable, with traffic simply failing to get a response after the last hop on the Internet backbone outside the Libyan address space. By blackholing traffic rather than using the blunt instrument of BGP as Egypt did, it is still possible to selectively allow individual computers or networks to access the internet.

 

Traceroute to LTT Libya web site

 

The best analogy I can think of is that, although the figurative canal system is still in place to get traffic to the right destination, Libya simply pulled the plug and drained the water.

 

4 thoughts on “Libya goes dark

  1. Pingback: Libyan civil war sees Internet decline

  2. Pundit

    From a technical point of view, is it possible that the shutdown has been made from the outside, as opposed from the inside?

    Reply
  3. Pingback: Libya’s Internet Goes Down Again | Gizmodo Australia

  4. Pingback: Libya’s internet goes dark as upheaval spreads | VIP//IT Solutions

Leave a Reply

Your email address will not be published. Required fields are marked *

*

You may use these HTML tags and attributes: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <strike> <strong>