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CIDR in Networking: Improved IP Routing Efficiency

CIDR (Classless Inter-Domain Routing) is a routing system in which network engineers can distribute IP addresses based on the size of their specific network. This is more efficient than the previous system, which assigned IP addresses depending on whether the size of a network fits into one of only three sizes: Class A, Class B, and Class C. more

Rethinking Protection Technologies: A Change Has Occurred

Talking technical is easy. Distilling technical detail, complex threats and operation nuances down to something that can be consumed by people whose responsibility for dealing with cybercrime lays three levels below them in their organizational hierarchy is somewhat more difficult. Since so many readers here have strong technical backgrounds and often face the task of educating upwards within their own organizations, I figured I'd share 4 slides from my recent presentation that may be helpful in communicating how the world has changed. more

Positive Outlook for Investments in Backbones

When talking about the problems of attracting infrastructure funds to the telecoms industry, I would make one exception; that is backbone infrastructure... We increasingly describes mobile networks as fibre networks with a wireless access component. This clearly indicates the need for fixed backbone network capacity, eventually all the way to the street. more

In a Networked World Knowing the Right Time Is Essential but How Accurate Are the Computer Clocks?

Computers have always had clocks. Well maybe not clocks as you might think, but digital computers have always had oscillators, and if you hook the oscillator to a simple counter then you have a clock. The clock is not just there to tell the time, although it can do that, nor is it there just to record the time when data files are created or modified, though it does that too. Knowing the time is important to many functions, and one of those is security. more

Blocking and Filtering in Collaborative Security Context - A Reflection on RFC 7754

The other day, I planned to take my 15-year-old son to the movie theatre to see "Hateful Eight" in 70mm film format. The theatre would not allow him in. Under article 240a of the Dutch penal code, it is a felony to show a movie to a minor when that movie is rated 16 or above. Even though I think I am responsible for what my son gets to see, I understand that the rating agency put a 16-year stamp on this politically-incorrect-gun-slinging-gore-and-curse-intense-comedy feature. more

Take IP Address Management Seriously; Your Business Depends on It

Let's start by stating the obvious: All business communications depend on IP addresses. Without an IP address, you simply can't communicate over the network. No IP address means no access to your email server, no access to your website, and no cell phone or VoIP access. So much for the new VoIP system installed last month. What does that mean to you? more

Just One Bit

I'm never surprised by the ability of an IETF Working Group to obsess over what to any outside observer would appear to be a completely trivial matter. Even so, I was impressed to see a large-scale discussion emerge over a single bit in a transport protocol being standardized by the IETF. Is this an example of a severe overload of obsessive-compulsive behaviour? Or does this single bit represent a major point of design principle... more

China and Taiwan to Lead the Development of 4G

China missed out on playing a leadership role in the development of 3G and as we predicted at that time, China would most certainly start looking at 4G for a major involvement in developing the technologies for it. more

GlavMed Hacks U.S. Government Website

Garth Bruen writes: A report in LegitScript takes a look at Russian rogue Internet pharmacy hacking US government website. "As rogue Internet pharmacy networks become more sophisticated, even US government websites are at risk. Today, we're taking a look at how a rogue Internet pharmacy linked to a criminal network operating out of Russia and Eastern Europe has hacked into a US government website. The Millennium Challenge Corporation, a US foreign aid agency, utilizes a ".gov" top-level domain, which is assigned to the control of the US government. Domain names ending in .gov are typically administered by the General Services Administration." more

OIAC Report: Views on Economic Impacts of Open Internet, Mobile Ecosystems, Specialized Services

Having been a member of the Committee for this past year, I'm pleased to share that the US Federal Communications Commission (FCC) "Open Internet Advisory Committee" has published its first annual report... The report is weighty - 98pp if you kill trees to print it. The OIAC was established as part of the US FCC Open Internet activity and Open Internet Report and Order from 2010. The FCC appointed expert committee members from a broad range of commercial, academic, and not-for-profit organizations. more

The Google Factor in the Obama Broadband Speech

Every time Google becomes involved in telecommunications it gets international media coverage; and every single time the same question is raised -- why does Google become involved in telecoms infrastructure, plus the underlying issue of it becoming a telecoms operator. This time the question is -- why does Google want to become involved in mobile telecoms and how is it going to compete with the other operators? more

If It Doesn’t Exist, It Can’t Be Abused

A number of outlets have reported that the U.S. Post Service was hacked, apparently by the Chinese government. The big question, of course, is why. It probably isn't for ordinary criminal reasons: The intrusion was carried out by "a sophisticated actor that appears not to be interested in identity theft or credit card fraud," USPS spokesman David Partenheimer said. ... But no customer credit card information from post offices or online purchases at usps.com was breached, they said. more

The Value of Community Broadband

There are many voices calling for increased initiatives by municipalities to build and operate broadband internet infrastructure as a public utility, but until this week, very little in the way of economic analysis to fully examine whether the benefits justify the costs. A paper released this week finds that local efforts produce small economic benefits, but cause a notable increase in the size of local government. more

Nerd Knobs and Open Source in Network Software

Tech is commoditizing. I've talked about this before; I think networking is commoditizing at the device level, and the days of appliance-based networking are behind us. But are networks themselves a commodity? Not any more than any other system. We are running out of useful features, so vendors are losing feature differentiation. This one is going to take a little longer... more

Matching Apps to Network Access - A Postage and Packaging Problem

A number of conversations have recently converged on a single problem: how to match applications to network access. Let's unpeel this issue... When I was Chief Analyst at Telco 2.0, we proposed there was a significant untapped market opportunity for network operators to bundle together access with content, applications or services. The revenue opportunity is to charge the providers of those services for delivering fit-for-purpose data at bulk wholesale prices. This is the "postage problem"... more