Politics, Weather, Photography, and the Dog
Thursday 19 June 2014

No, not aviation routing; IP routing.

From the Terminal 2 American Airlines club, I am unable to hit most *.cloudapp.net IP addresses. This is significant because it's basically all of Microsoft Azure, including logon.microsoft.net, Weather Now, and a bunch of other sites I use or have some responsibility for.

I've just spent a few minutes testing DNS (everything is fine there) and then using tracert and pathping, and it looks like the entire 168.62.0.0/16 and 168.61.0.0/16 ranges are just not visible from here. (The Daily Parker is also in Azure, but its IP is in the 191.238.0.0/16 subnet, which seems to be visible just fine.)

I wonder if Microsoft knows that its U.S. East data center is being blocked by some French ISP? Or why?

Thursday 19 June 2014 15:53:25 CEST (UTC+02:00)  |  | Cloud | Security#
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David Braverman and Parker
David Braverman is a software developer in Chicago, and the creator of Weather Now. Parker is the most adorable dog on the planet, 80% of the time.
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