Networks

NANOG 61 - Impressions of Some Presentations

The recent NANOG 61 meeting was a pretty typical NANOG meeting, with a plenary stream, some interest group sessions, and an ARIN Public Policy session. The meeting attracted some 898 registered attendees, which was the biggest NANOG to date. No doubt the 70 registrations from Microsoft helped in this number, as the location for NANOG 61 was in Bellevue, Washington State, but even so the interest in NANOG continues to grow... more

Google’s IPv6 Stats Hit 12% on Fourth Anniversary of World IPv6 Launch

Four years ago today, thousands of websites, including Facebook, Google and Yahoo, and hundreds of networks permanently enabled IPv6 in what was called "World IPv6 Launch". One year before, on June 6, 2011, there had been a 24-hour test in "World IPv6 Day" but by June 6, 2012, IPv6 was enabled permanently for the participating sites and networks. One of the many IPv6 statistics sites many of us have watched since that time has been Google's statistics. more

IPv6 Security Myth #4: IPv6 Networks are Too Big to Scan

Here we are, all the way up to Myth #4! That makes this the 4th installment of our 10 part series on the top IPv6 Security Myths. This myth is one of my favorite myths to bust when speaking with folks around the world. The reason for that is how many otherwise well-informed and highly experienced engineers, and others, hold this myth as truth. It's understandable, really. more

Scarcity of IPv4 Addresses

My friend Kurtis writes in his blog some points he has been thinking of while discussing "when we run out of IPv4 addresses". In reality, as he points out so well, we will not run out. It will be harder to get addresses. It is also the case that unfortunately people that push for IPv6 claim IPv6 will solve all different kinds of problem. Possibly also the starvation problems in the world... more

IPv6 Security Myth #1: I’m Not Running IPv6 so I Don’t Have to Worry

Now that IPv6 is being actively deployed around the world, security is more and more a growing concern. Unfortunately, there are still a large number of myths that plague the IPv6 security world. These are things that people state as fact but simply aren't true. While traveling the world, talking to the people who've already deployed IPv6, I've identified what I believe are the ten most common IPv6 security myths. more

The Internet of Things: When Sci-Fi Becomes Reality

In my last blog post I shared some of the general security challenges that come with the Internet of Things (IoT). In this post, I will focus on one particular security risk: distributed denial of service (DDoS) attacks. Even before the age of IoT, DDoS attacks have been turning multitudes of computers into botnets, attacking a single target and causing denial of services for the target's users. By "multitudes" we can be talking about thousands or even millions of victim devices. Now add IoT into the equation... more

IPv6 Deployment: A Very Complex Time Bomb with an Uncertain Trigger Date

I did a 2 hour interview on October 23rd with John Curran, Board Chair of ARIN the North American Regional Internet Routing Registry for the last decade. I now understand what is at stake with IPv6. Outside of a key core group of network engineers I think darn few people do understand. And not all of them agree on how the scenario plays out though virtually all say the situation is very serious. John believes that it is huge. It is as big as Y2K except no one knows a precise date by which everything has to be done... more

Beyond Neutrality - Enabling a World of Connected Things

The growing interest in the "Internet of Things" is forcing us to think beyond the web to a much larger world of connected devices. We can tolerate the many barriers to connectivity because we expect that someone can provide the necessary credentials to log in to the providers' services and to adjust Wi-Fi access keys whenever the access point changes or simply to click "agree" at a hotspot. This doesn't work for "things" which can't recognize a sign-on or "agree screen". more

IPv6 Security Myth #2: IPv6 Has Security Designed In

Today we continue with part 2 of the 10 part series on IPv6 Security Myths by debunking one of the myths I overhear people propagating out loud far too much: That you don't need to worry about security because IPv6 has it built into the protocol. In this post, we'll explore several of the reasons that this is in fact a myth and look at some harsh realities surrounding IPv6 security. more

Rediscovering the Internet

I wrote a guest column for ZDNet last month on the importance of IPV6. I fear that the Internet has been devolving into a recreation of the old smart networks with a lot of perverse complexity in the infrastructure. The latest calls for protection from all that bad stuff only adds to my concern since the problems attributed to the "Internet" will encourage people to seek more meddling. Unfettered connectivity has been a necessary precondition for allowing innovation to thrive on the Internet. It worked because the same openness allowed those at the edges to protect themselves against the errors whether malicious or just problematic. In fact, the so-called Internet revolution was triggered by the key concept of the browser -- treating other systems with suspicion but leaving it to the end points to decide how much to trust each other. more

Internet-Native Policies

Policies such as network neutrality and minimum speeds for broadband seek to limit the ability of carriers to favor some applications over others. Well-intended though these initiatives are, they still leave users negotiating for passage while confined to the carriers' "pipes". In this scenario, end users remain limited by how the incumbents choose to build their broadband content delivery networks. more

FCC Proposes Super Wifi Networks Across the U.S.

The Federal Communications Commission (FCC) is proposing the creation of "Super WiFi" networks across the United States providing free, highspeed, long-range WiFi networks, according to a report from the Washington Post. more

Still Waiting for IPv6

It's now been a decade since the world officially ran out of blocks of IP addresses. In early 2011 the Internet Assigned Numbers Authority (IANA) announced that it had allocated the last block of IPv4 addresses and warned ISPs to start using the new IPv6 addresses. But here we are a decade later and not one of my clients has converted to IPv6. more

Cloud Is the New Mainframe

Cloud computing, from a business and management perspective, has a great deal in common with mainframe computing. Mainframes are powerful, expensive and centralized pieces of computing equipment. This is in line with their role as infrastructure for mission-critical applications. For these types of applications, mainframes can be fairly efficient, even though they tend to need large teams of support specialists... Cloud computing is a new style of computing... more

Moving Beyond Telephone Numbers - The Need for a Secure, Ubiquitous Application-Layer Identifier

Do "smart" parking meters really need phone numbers? Does every "smart meter" installed by electric utilities need a telephone number? Does every new car with a built-in navigation system need a phone number? Does every Amazon Kindle (and similar e-readers) really need its own phone number? In the absence of an alternative identifier, the answer seems to be a resounding "yes" to all of the above. more