Feeds

When will Microsoft next run out of US IPv4 addresses for Azure?

Redmond gives some servers a Brazilian, promises all the action is on American soil

Reducing the cost and complexity of web vulnerability management

Updated Microsoft's Azure cloud service has run out of occasionally runs out of US-based IPv4 addresses.

Redmond 'fessed up to the issue in a blog post in which it says users have been asking it why, when they use Azure-hosted VMs, they find themselves redirected to websites localised for other nations. The post offers a screen shot of Yahoo! Brazil, in Portuguese, to illustrate the situation.

Redmond's answer is was that it can't get its hands on any more of the USA's IPv4 addresses, as they've all been handed out.

“The result is that we will have to use IPv4 address space assigned to a non-US region to address services which may be in a US region,” the post continues.

The post emphasises that just because Microsoft gives your VM a Brazilian or other foreign address, that doesn't mean you lose the legal protections that come with having your server on US soil. Or don't come, if one E. Snowden, late of Moscow, is correct.

Azure users are concerned enough about this that Microsoft says it is “... currently working with a few major IP geo-location database companies to update the location of these IPs which should help alleviate the issues this may be causing.” The result, presumably, will be that Microsoft-owned non-US IP addresses will no longer point to localised web sites.

Which is rather nice, but also raises questions about why Azure is relying on Ipv4 and how Redmond let itself run out of IPv4 addresses. The latter question looks easy to answer: back when Microsoft was buying IPv4 it probably could not foresee the need for quite as many addresses as cloud computing requires.

We've asked Microsoft to offer an answer to the the first question.

Updated to add

Microsoft contacted El Reg regarding this story after it was published, and offered two nuggets of information. The first is that it has updated its post with the following:

The below blog misstated the situation around Microsoft Azure’s IPv4 address space in US regions. Currently, Microsoft has IPv4 space in US regions. That said, inventory space is a dynamic situation. In the past some customers were assigned non-US IPv4 addresses as a result of limited inventory.

The second nugget comes from the Azure FAQ that states, in part, that "foundational work to enable IPv6 in the Azure environment is well underway. However, we are unable to share a date when IPv6 support will be generally available at this time". ®

Reducing the cost and complexity of web vulnerability management

More from The Register

next story
Wanna keep your data for 1,000 YEARS? No? Hard luck, HDS wants you to anyway
Combine Blu-ray and M-DISC and you get this monster
US boffins demo 'twisted radio' mux
OAM takes wireless signals to 32 Gbps
Apple flops out 2FA for iCloud in bid to stop future nude selfie leaks
Millions of 4chan users howl with laughter as Cupertino slams stable door
Google+ GOING, GOING ... ? Newbie Gmailers no longer forced into mandatory ID slurp
Mountain View distances itself from lame 'network thingy'
Students playing with impressive racks? Yes, it's cluster comp time
The most comprehensive coverage the world has ever seen. Ever
Run little spreadsheet, run! IBM's Watson is coming to gobble you up
Big Blue's big super's big appetite for big data in big clouds for big analytics
Seagate's triple-headed Cerberus could SAVE the DISK WORLD
... and possibly bring us even more HAMR time. Yay!
prev story

Whitepapers

Secure remote control for conventional and virtual desktops
Balancing user privacy and privileged access, in accordance with compliance frameworks and legislation. Evaluating any potential remote control choice.
WIN a very cool portable ZX Spectrum
Win a one-off portable Spectrum built by legendary hardware hacker Ben Heck
Intelligent flash storage arrays
Tegile Intelligent Storage Arrays with IntelliFlash helps IT boost storage utilization and effciency while delivering unmatched storage savings and performance.
High Performance for All
While HPC is not new, it has traditionally been seen as a specialist area – is it now geared up to meet more mainstream requirements?
Beginner's guide to SSL certificates
De-mystify the technology involved and give you the information you need to make the best decision when considering your online security options.