Threat Level: green Handler on Duty: Jan Kopriva

SANS ISC: Widespread Routing Outages - SANS Internet Storm Center SANS ISC InfoSec Forums

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Widespread Routing Outages
There appear to be widespread routing outages across several ISPs world wide. At this point we don't have any details. But several sites are not reachable. Cogent and Savvis appear to be harder hit then others, so if you are connecting to us via either NSP, you may not be able to see this diary :-(. The problems started about 5am EDT (9am UTC)

BGP routing table delta shows some 'blip' which may indicate attempts to route past it.

More details as we find out about them.

(Note: Cogent's website is, NOT

I will be teaching next: Application Security: Securing Web Apps, APIs, and Microservices - SANS London June 2022


4469 Posts
ISC Handler
May 24th 2006

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