Networks

Silvia Hagen: It’s Not About IPv6 Transition But Urgent Integration

As the IPv4 address pool is rapidly reaching exhaustion, Silvia Hagen, a leading expert on IPv6 and the author of O'Reilly's book, "IPv6 Essentials," stresses that a primary step towards IPv6 address space is not about "transition" but "integration". IPv4 and IPv6 are going to co-exist for many years to come and so what companies need to do, in the first place, is to look at their IPv4 landscape and identify areas of priority, Hagen said in a recent interview with CircleID. more

Facebook Outage Possibly Global

Craig Labovitz reporting from Arbor Networks: "We use ATLAS data to graph Facebook (AS32934) traffic with 80 ISPs around the world between 5pm September 22 and 5pm EDT today. You can see Facebook traffic plummet around 1:30pm and return shortly after 4pm. From a quick glance at the data, the outage appears to be global (impacting most of the 80 ISPs)." more

Policy Failure Enables Mass Malware: Part I (Rx-Partners/VIPMEDS)

This is the first in a series of releases that tie extensive code injection campaigns directly to policy failures within the Internet architecture. In this report we detail a PHP injection found on dozens of university and non-profit websites which redirected visitor's browsers to illicit pharmacies controlled by the VIPMEDS/Rx-Partners affiliate network. This is not a unique problem, however the pharmacy shop sites in question: HEALTHCUBE[DOT]US and GETPILLS[DOT]US should not even exist under the .US Nexus Policy. more

Network Complexity: Three Trends That are Contributing to a “Perfect Storm”

Most everyone who visits CircleID is familiar with Moore's Law, which stated simply holds that computing power doubles every 18 months. This has been going on since the 1960s and shows no sign of slowing. Moore's Law drives faster and faster computing, which produces more and more data and network complexity. This inexorable trend is putting immense pressure on corporate networks, and the strain is too much for many of them to handle on their own. more

WiMAX vs. LTE

Mobile WiMAX, with the release of 2×2 MIMO chips in 2008, gives WiMAX a lead of two or so years on its major competitor -- the 3GPP's LTE. However, 3G cellphones using 3GPP UMTS technologies, extended to higher speeds with HSPA, is widely used in handsets in many countries. In North America, 3GPP2 CDMA2000 and EV-DO are widely used, but these are likely to be replaced over time by LTE and to some extent WiMAX. more

Deploying DNSSEC: Lessons from Domain Registrar Implementation

As a registrar at the front end of the DNSSEC deployment effort, our technical team has made a sustained investment in DNSSEC deployment so that our customers don't get overwhelmed by this wave of changes to the core infrastructure of the Domain Name System. Along the way, we've learnt a lot about how to implement DNSSEC which might hold useful lessons for other organizations that plan to deploy DNSSEC in their networks. more

Resources for Cleaning Your Network

The first step (but certainly not the last) towards saving the internet from spam, malware, and other abuse is to keep your own network clean. A friend of CAUCE, who wishes to remain anonymous, offers these tips and resources to help you identify problem traffic emanating from your network, and clean it up. Though primarily written for ISPs, many of the items below should apply equally well to any network owner. more

Military Asserts Rights to Return Cyber Attacks

The Washington Post had a good article up yesterday capturing comments issued by the United States military that it has the right to return fire when it comes to cyber attacks... This is an interesting point of view, and it extends from the United States's policy that if it is attacked using conventional weapons, it reserves the right to counter respond in kind. This has been a long accept precept governing US foreign military policy for generations. Yet cyber attacks are different for a couple of reasons... more

IPv6: Beware of Dirty, Muddy IPv4 Addresses as the Pool Dries Up

Mid March a special plenary session of the Canadian standard committee isacc was convened in Ottawa to review the final report of the Canadian IPv6 Task Group. It was unanimously approved and the essence of its 66 pages are seven recommendations for Government, Industry, Service and Content providers, and the regulator, CRTC to proceed with diligence, even some sense of urgency. One paragraph provides an interesting new twist... more

NXDOMAIN Substitution: Good or Evil?

It might seem a little strange, but in the current economics of the market in registration of DNS names it appears that the set of names that are not "visible," or at least not associated with any dedicated network service point, represents a far larger set, and has a far higher total value to the DNS name registration industry, than the set of network-visible service endpoint domain names. In other words, there appears to be a larger and more valuable market for names that do not exist than for names that do. more

Getting a Handle on IDNs

Internationalized Domain Names or IDNs are back in the news. ICANN recently released a document entitled "Proposed Final Implementation for IDN ccTLD Fast Track Process"... In a nutshell, ICANN has now offered a path toward authorizing the adoption of ccTLDs in many countries' native languages. This marks a welcome advance for millions of Internet users who do not speak English or who do not use another language covered by ASCII. But with this advance comes some concerns. more

Cutting Through the Twitter DDoS Hype

There are a lot of theories flying around about why Twitter and other social media services got knocked offline yesterday. I've heard rumors about it being linked to political tension between Georgia and Russia. Others blame Iran for the outages. I'm not a political commentator, therefore I cannot comment on anyone's political views -- but I have some logic and common sense, and I can draw some objective conclusions. more

Verizon Mandates IPv6 Support for Next-Gen Cell Phones

Cell phone carriers have seen a huge growth in wireless data usage. The iPhone is selling like hotcakes, and its users generate large amounts of traffic. Not surprisingly, as cellular providers deploy faster network technologies, users generate even more data... more

IPv6 and LTE, the Not So Long Term Evolution?

The Wall Street Journal reported that AT&T saw wireless networks about to drown under a deluge of data. To see YouTube content uploaded form an iPhone or Slingbox rerouting a favourite television program to your smart phone gives mobile network operators the shivers. Skype over 3G in the meantime gives sleepless nights, not because of surging megabyte floods but due to nightmares of considerable voice and roaming revenues washing away. Not easy to plan and engineer "managed transitions" under those circumstances. more

Cyber Security and the White House, Part 2 - Cyberwarfare

This is a follow-up to my previous post on Cybersecurity and the White House. It illustrates an actual cyberwarfare attack against Estonia in 2007 and how it can be a legitimate national security issue. Estonia is one of the most wired countries in eastern Europe. In spite of its status of being a former Soviet republic, it relies on the internet for a substantial portion of everyday life -- communications, financial transactions, news, shopping and restaurant reservations all use the Internet. Indeed, in 2000, the Estonian government declared Internet access a basic human right... more