IP Addressing

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IP Addressing / Most Commented

IPv4 Historical Imbalances and the Threat to IPv6

It is an open secret that the current state of IPv4 allocation contains many accidental historical imbalances and in particular developing countries who wish to use IPv4 are disadvantaged by the lack of addresses available through ordinary allocation and are forced into purchasing addresses on the open market. As most of the addresses for sale are held by organisations based in the developed world, this amounts to a transfer of wealth from the developing world to the developed world, on terms set by the developed world. more

RFC 1918 Address Space: Why It Was Needed then and How It Will Change in IPv6!

Recently, my firm has seen a lot of interest come from Enterprises seeking IPAM/DNS tools. We predicted that IPv6 adoption and the need for automation software/tools would follow the Internet ecosystem's supply chain starting with Service Providers consisting of ISPs, I/PaaS, ASPs, then content providers (mostly a service really), then Enterprises, followed by SMBs & Consumers. While good for business, it has also forced us to revisit and think thru many TCP/IP protocol standards... 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

IP Address Exhaustion In 12 Easy Questions

It seems that there is an increasing level of interest in the topic of IPv4 address exhaustion, so I thought I'll share a set of answers to the most common questions I've been asked on this topic in recent times. ... If there is a common factor in many of these challenges, it is scaling the network to meet an ever expanding agenda of more users, more devices, more traffic, more services and more policies. more

MIT 2010 Spam Conference Starts Tomorrow…

In January we presented the glorious history of the MIT spam conference, today we present the schedule for the first day. Opening session will be from this author, Garth Buren with a topic entitled The Internet Doomsday Book, with details be released the same day as the presentation. Followed by Dr. Robert Bruen with a review of activities since the last MIT spam conference... more

Country Internet Registries: One African Perspective

Paul Wilson, Secretary-General of APNIC, was correct when he reminded the panelists of the IGF2009 workshop "Adopting IPv6: What You Need To Know" that "countries don't typically get IP address allocations, network service providers do". The ITU stills seems to cling to the notion that countries get IP blocks... more

Is It Time to Create a Market for IPv4 Addresses?

It's fascinating to watch the Internet technical community grapple with policy economics as they face the problems creating by the growing scarcity of IPv4 addresses. The Internet Governance Project (IGP) is analyzing the innovative policies that ARIN, RIPE and APNIC are considering as a response to the depletion of IPv4 addresses. more

Is China Preparing to Go its Own Way with its Own Internet Root?

Interesting things happening in China. An article in the English edition of the People's Daily on line is headlined, Decimal network security address begins operation: "China's decimal network security address was officially launched. China has made a fundamental breakthrough in its Internet development; and actual use has been successful. The birth of decimal network technology makes China the only country able to unify domain names, IP addresses and MAC addresses into the text of a metric system..." Someone asked whether this was a rumored IPv9? It appears IPv9 is a project name, not a new protocol. It lumps together several activities, including at least... 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

IP Address Intelligence Burdening Content Providers with Regional Laws?

I've been looking into IP address filtering by content providers. I understand that IP addresses can be attached with confidence to geographical locations (at the country level, at least) about 80% of the time. You have to make up the rest with heuristics. So there are companies that are in the business of packaging those geolocation heuristics for sites. ...How widely are these services used? ...does it now make sense to put content sites to the burden of complying with the laws applicable to the people/machines they know are visiting them? more

Internet Zombies

Today on Dave Farber's IP list, someone revived the ancient argument that ICANN imposes limits on the number of top level domains (TLDs) because to have more than a few will cause DNS to wobble and cause the internet to collapse. Although long discredited, that argument hangs around like a zombie. ICANN has never been able to adduce a shred of proof that there is anything to support that assertion... more

A Look Back at the World of IP Addressing in 2018: What Changed and What to Expect

Time for another annual roundup from the world of IP addresses. Let's see what has changed in the past 12 months in addressing the Internet and look at how IP address allocation information can inform us of the changing nature of the network itself. Back in around 1992 the IETF gazed into the crystal ball and tried to understand how the internet was going to evolve and what demands that would place on the addressing system as part of the "IP Next Generation" study. more

On the Internet Everyone is Connected to Everyone Else - Right?

We tend to make a number of assumptions about the Internet, and sometimes these assumptions don't always stand up to critical analysis. We were perhaps 'trained' by the claims of the telephone service to believe that these communications networks supported a model of universal connectivity. Any telephone handset could establish a call with any other telephone handset was the underlying model of a ubiquitous telephone service, and we've carried that assumption into our perception of the Internet. On the Internet anyone can communicate with anyone else - right? more

IPv6 and DNSSEC Are Respectively 20 and 19 Years Old. Same Fight and Challenges?

A few weeks ago I came across an old interview of me by ITespresso.fr from 10 years back entitled "IPv6 frees human imagination". At the time, I was talking about the contributions IPv6 was expected to make and the challenges it had to face. After reading the article again, I realized that it has become a little dusty (plus a blurred photo of the interviewee :-)). But what caught my attention the most in the interview was my assertion: "If IPv6 does not prevail in 2006, it's a safe bet that it will happen in 2007". Wow! more

Apple and IPv6 - Not Quite There Yet

It's Apple's Developers Conference time again, and in amongst the various announcements was week, in the "Platforms Status of the Union" presentation was the mention of Apples support of IPv6. Sebastien Marineau, Apple's VP of Core OS told the conference that as far as IPv4 addresses are concerned, exhaustion "is finally here", noting that this already started in 2011 in the Asia Pacific while in North America IPv4 address exhaustion is imminent. Sebastien noted that it's really important to support IPv6 in devices and applications these days... more