Verio taking twitter down during Iran Election Riots?

Martin Hannigan martin at
Wed Jun 17 14:25:05 UTC 2009

On Tue, Jun 16, 2009 at 7:55 PM, Jeremy L. Gaddis <jeremy at>wrote:

> On Tue, Jun 16, 2009 at 12:05 PM, Steve Pirk<orion at> wrote:
> > There are some, ehrm, "boxen" out on the 'net to allow them to get around
> > the active blocking going on, but most of the citizen reporters are
> unable
> > to even get a conection to allow proxying out. Some serious censoring of
> > 'net access going on.
> Doesn't DCI still control things there?  If so, they could cut Iran
> off from the world very easily if they wanted.

Iran breaks their communications infrastructure into pseudo-zones. You can
easily pinpoint a few choke points and surgically remove them from the

This is the case for many countries. Sometimes the infrastructure is so
hierarchically designed (likely for surveillance purposes) that you could
literally watch their bgp advertisements and potentially draw conclusions
about things "other than" Internet activity.

Best Regards,


Martin Hannigan                               martin at
p: +16178216079
Power, Network, and Costs Consulting for Iceland Datacenters and Occupants

More information about the NANOG mailing list