netflow
Security: Vital for Technology-enabled Education
More and more we are seeing the education landscape change to include more technology for collaboration and mobile learning. Colleges and universities are enabling secure networks for staff and students to access resources on-campus and off. With October being National Cybersecurity Awareness Month…
Cybersecurity Awareness Month: Unsampled Netflow – Why it’s Important for Cybersecurity
Quick question for IT leaders – can the switches on your network report 100% unsampled netflow? If they can’t, there may be elusive cybersecurity threats hiding within your network. Yes, inside your network. Every week, I hear stories of intellectual property (IP) loss and personal identifyin…
Botnets Riding Rails to your Data Center
Cisco Security Intelligence Operations is tracking reports of ongoing exploitation of a vulnerability in the popular web application framework Ruby on Rails that creates a Linux-based botnet. The vulnerability dates back to January 2013 and affects Ruby on Rails versions prior to 3.2.11, 3.1.10, 3.0…
Foundational Network Traffic Collection and Analysis Setup
This introductory post explains how one of Cisco’s security research groups established a network data collection capability for large amounts of network traffic. This capability was necessary to support research into selected aspects of the Domain Name Service (DNS), but it can be adapted for other…
Cisco ISR-AX is Now a Part of the Integrated Services Router Family!
On March 12th, Cisco announced the ISR-AX and how Cisco is changing the game, reducing complexity and making it simpler for enterprises to deliver and manage application delivery to users. Cisco is expanding the role of our Integrated Service Routers (ISRs) to deliver application-centric networks t…
A Better (and More Affordable) Way to Deliver a High Quality Application Experience from Anywhere
Today, marks an important milestone in the history of routing, as Cisco introduces ISR-AX (Integration Services Router Generation 2 with Application Experience) and redefines the role of the router as the application delivery platform. https://www.youtube.com/watch?v=JBw18_S3jus Quintiles – a biopha…
How to Find and Measure IPv6 Traffic on Your Network
My last post was all about finding IPv6 prefixes on the IPv6 Internet. I think the next natural question is “What about IPv6 traffic?” or more specifically, “What about IPv6 traffic on my network?” In this post, I’ll talk about some network tools, or instrumentation, that can be used to find and mea…
Accounting and Routing in the Internet
Accounting Traffic in the Internet Today [the full article can be seen at http://www.internetsociety.org/sites/default/files/BGP-for-regulators.pdf] Business Model Changes In the past, voice traffic was transported over a dedicated voice infrastructure, and the data network infrastructure was establ…