Networks

Another Portent of the Decline and Fall of the Telco

The Swedish carrier group Telia has recently announced the sale of its international wholesale business to Polhelm Infra, an infrastructure investment manager jointly owned by a number of Swedish pension funds. Why would a telco operator sell off what was a core part of its operation to a pension fund? The Internet was originally conceived as a telephone network for computers. (I should mention that this was not a concept that was unique to the Internet at the time. more

Jakarta Declaration Calls on Governments to Recognize Legitimacy of Encryption

Today in Indonesia, media leaders gathered at UNESCO's World Press Freedom Day event issued the "Jakarta Declaration" calling on governments of the world to recognize the importance of a free and independent media in creating "peaceful, just and inclusive societies". The declaration calls on governments to take steps to support the freedom of the press, and, in the midst of the many actions was this statement: Recognise the legitimacy of the use of encryption and anonymisation technologies more

Bigger, Faster, Better (and Cheaper!)

Let's take a second to look back some 50 years to the world of 1972 and the technology and telecommunications environment at that time. The world of 1972 was one populated by a relatively small collection of massive (and eye-wateringly expensive) mainframe computers that were tended by a set of computer operators working around the clock and directed by specialized programmers, trained in the obscure symbol set used by the job control systems on these computers. more

The Demand and Supply Imbalance in Telecoms

You can't open a newspaper today, listen to the radio, or watch TV without hearing about the enormous explosion in the use of telecommunications technology - be it fixed or mobile broadband, the internet, social media, smartphones, tablets, wearables, IoT, cloud computing, the list is endless... Yet, at the same time, many telcos and ISPs are struggling to maintain their profitability. This defies economic logic. more

Deadline of July 2 to Nominate People for Jonathan B. Postel Service Award

Do you know of someone who has made the Internet better in some way who deserves more recognition? Maybe someone who has helped extend Internet access to a large region? Or wrote widely-used programs that make the Internet more secure? Or served in some capacity behind the scenes in Internet services? Or maybe someone who has been actively working for open standards and open processes for the Internet? more

Clarke and Knake’s “Cyberwar”

I just finished reading Richard Clarke and Robert Knake's book Cyberwar. Though the book has flaws, some of them serious, the authors make some important points. They deserve to be taken seriously. I should note that I disagree with some of my friends about whether or not "cyberwar" is a real concept. Earlier, I speculated that perhaps it might be a useful way to conduct disinformation operations, but it need not be so limited. more

Notes from NANOG 83

The network operations community is cautiously heading back into a mode of in-person meetings, and the NANOG meeting at the start of November was a hybrid affair with a mix of in-person and virtual participation, both by the presenters and the attendees. I was one of the virtual mob, and these are my notes from the presentations I found to be of personal interest. I hope you might also find them to be of interest as well... The year 2021 has not been a good year for Internet outages. more

Graph Shows Decline of IPv4 Has Been Mostly Linear

As the free pool of IPv4 addresses reaches its end, we looked at the evolution of the amount of unassigned IPv4 address space over time. By 'unassigned', we mean address space not yet allocated to a Local Internet Registry (LIR) or assigned to an end user. LIRs are typically Internet Service Providers or enterprises operating an IP network. See our findings in the graph below... more

Wireless Broadband vs Fixed Broadband - The Story Continues

This never-ending story is used by opportunistic telcos and their lobbyists to confuse the issue in order to gain regulatory or political advantage. The debate is now raging again in the USA. In an attempt to talk down their monopolistic position in the market the three telcos - and this time in particular, Comcast - are claiming that real competition does in fact exist in the American broadband market, citing competition from the mobile 4G LTE services as an example. more

China’s First IPv6-Only Backbone Network Connecting 1,200 More Campuses

2016 marked the start of the third and final phase of the China Next Generation Internet (CNGI) IPv6 program. more

Running DNSBLs in an IPv6 World

DNS blacklists for IPv4 addresses are now nearly 15 years old, and DNSBL operators have gathered a great deal of expertise running them. Over the next decade or two mail will probably move to IPv6. How will running IPv6 DNSBLs differ from IPv4? There aren't any significant IPv6 DNSBLs yet since there isn't significant unwanted IPv6 mail traffic yet (or significant wanted traffic, for that matter), but we can make some extrapolations from the IPv4 experience. more

A Royal Opinion on Carrier Grade NATs

There are still a number of countries who have Queen Elizabeth as their titular head of state. My country, Australia, is one of those countries. It's difficult to understand what exactly her role is these days in the context of Australian governmental matters, and I suspect even in the United Kingdom many folk share my constitutional uncertainty... In the United Kingdom every year the Queen reads a speech prepared by the government of the day, which details the legislative measures that are being proposed by the government for the coming year. Earlier this month the Queen's speech included the following statement in her speech. more

July 2010: The End of the Beginning for DNSSEC

July 15, 2010 (yesterday) marked the end of the beginning for DNSSEC, as the DNS root was cryptographically signed. For nearly two decades, security researchers, academics and Internet leaders have worked to develop and deploy Domain Name System Security Extensions (DNSSEC). DNSSEC was developed to improve the overall security of the DNS, a need which was dramatized by the discovery of the Kaminsky bug a few years ago. more

Russian Hackers Have Penetrated U.S. Electric Utilities

U.S. federal government officials have revealed Russian hackers have been able to gain access to the networks of electric utilities in the country, according to a report by The Wall Street Journal. more

How Many Bots? How Many Botnets?

We touched on this subject in the past, but recently Rich Kulawiek wrote a very interesting email to NANOG to which I replied, and decided to share my answer here as well: I stopped really counting bots a while back. I insisted, along with many friends, that counting botnets was what matters. When we reached thousands we gave that up. We often quoted anti-nuclear weapons proliferation sentiments from the Cold War, such as: "why be able to destroy the world a thousand times over if once is more than enough?" we often also changed it to say "3 times" as redundancy could be important... more