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NetFlow 101

[fa icon="calendar'] Apr 18, 2017 11:17:20 AM / by The Team @Talaia posted in Whitepapers

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Talaia’s monitoring algorithms are based on the de facto industry standard protocol known as NetFlow.

 In this whitepaper we will clarify what NetFlow is, explain its intrinsic characteristics, and why it is the best possible approach to monitoring network data, specially on high-speed links.

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Thoughts on the Recently Announced Vulnerabilities in Cisco NetFlow Appliances

[fa icon="calendar'] Mar 9, 2017 10:51:17 AM / by Josep Sanjuas posted in News

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A couple of days ago Cisco announced a vulnerability in some of their NetFlow appliances. The vulnerability itself was not especially grave: an error in processing certain SCTP packets could be abused to remotely hang or reboot the appliance. The SCTP protocol is not widely used, and that is, most likely, one of the reasons why such a vulnerability stayed undetected for a long time.

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Understanding Australian Metadata Retention

[fa icon="calendar'] Feb 20, 2017 11:52:05 AM / by The Team @Talaia posted in Cyber-Security, Whitepapers

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Australia has passed laws that force Communication Service Providers (including ISPs) to perform metadata collection and retention for use for security purposes by a few government agencies.

Complying with such metadata retention laws is not an easy task from a technical standpoint. We have compiled a whitepaper reviewing the requirements imposed on service providers and how they can comply without too many headaches.

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Why do cybercriminals love DDoS attacks so much?

[fa icon="calendar'] Jan 23, 2017 11:53:38 AM / by Josep Sanjuas posted in Cyber-Security

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Just last month, a major cyberattack brought down the likes of Twitter, Soundcloud, Spotify and Airbnb for a few hours. Interestingly, rather than directly attacking the infrastructure of these companies, the assault targeted the domain name system (DNS) host Dyn, which is relied upon by the sites above. This is how a single attack could bring down so many sites at once.

(As you may already know, DNS a bit like the yellow pages of the Internet - but rather than mapping people's names to phone numbers, it maps domain names to IP addresses, which computers require to communicate. Hence, if the DNS provider of a site is down, it cannot be accessed by its users.)

One might imagine that pulling off an attack of this magnitude would require extreme sophistication. In practice, the disruption was caused by a rather rudimentary Distributed Denial of Service (DDoS) attack that overwhelmed the DNS servers of the aforementioned sites.

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Highlights from SCEWC16

[fa icon="calendar'] Nov 24, 2016 3:15:00 PM / by Aanshi Desai posted in Events

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 Last week we attended SCEWC 2016, and it was a great experience overall. SCEWC '16 was a great opportunity to get in touch with companies froman entirely different ecosystem, one we have not been in touch with until now. By providing our network visibility solution to government bodiesof different countries — and the companies focused on helping build the smart cities of the future — we can help realize the vision that a city is smart only if it is well connected.

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Polygraph is now Talaia

[fa icon="calendar'] Nov 9, 2016 11:00:00 AM / by Josep Sanjuas

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It's been three years since Talaia Networks was born. During this time, a lot has happened.

Talaia started as a vehicle to commercialize the research of the Broadband Communications research group of UPC-BarcelonaTech. Long story short, our cloud-based NetFlow collector took off as our main product. Fast forward to today: we are now growing quickly with customers all around the world. We believe now is the right time to rethink our brand and prepare it for the future.

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Adding NetFlow Support to a Network with an EdgeRouter PoE

[fa icon="calendar'] Mar 1, 2016 11:00:00 AM / by Josep Sanjuas

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Any router vendor worth its salt supports NetFlow (or IPFIX, or sFlow, or compatible protocols). However, in practice, sometimes NetFlow is simply not available. In our experience, this happens for two main reasons: 

  1. A consumer-grade router is installed in a small office or remote location.
  2. A suitable router that does implement NetFlow is available, but it is externally managed, and the service provider won’t enable it, because it’s out of the scope of their contract.

Either way, because of a technical limitation or otherwise, how does one go about gaining network visibility in such a scenario? In this post, we propose a simple, inexpensive solution to add NetFlow to an existing network, and send this NetFlow to Talaia‘s collector.

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Monitoring MikroTik Routers with NetFlow and Talaia

[fa icon="calendar'] Dec 11, 2015 11:00:00 AM / by Josep Sanjuas

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Introducing Talaia Platform – A Multi-Tenant Network Visibility Solution for ISPs, MSPs, and Exchange Operators

[fa icon="calendar'] Oct 21, 2015 11:00:00 AM / by Josep Sanjuas

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We at Talaia have been working on a new product line that we are publicly presenting today in this blog post. This new product line is Talaia Platform. It is geared at Managed Service Providers and Internet Service Providers, as well as transit networks and traffic exchange operators.

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Awarded an SME Instrument Grant!

[fa icon="calendar'] Apr 20, 2015 11:00:00 AM / by Josep Sanjuas

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We are very proud to announce that we have been awarded a SME instrument (Phase 1) grant by the European Commission. These projects are in line with the efforts of the European Commission to find “Europe’s next innovation leaders”.

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