IPv4 Markets

Do We Need An IPv6 Flag Day?

In recent interviews about World IPv6 Launch I've been asked by several different people whether or not I think there needs to be some kind of a "Flag Day" on which the world all together switches from Internet Protocol version 4 (IPv4) to the version 6 (IPv6). I don't think a flag day is needed. World IPv6 Launch is just the right thing. It's worth looking at some previous flag-type days to get a better sense of why. more

IP Addresses and Traceback

This is an informal description the evolution of a particular area of network forensic activity, namely that of traceback. This activity typically involves using data recorded at one end of a network transaction, and using various logs and registration records to identify the other party to the transaction. Here we'll look at the impact that IPv4 address exhaustion and IPv6 transition has had on this activity, and also note, as we explore this space, the changing role of IP addresses within the IP protocol architecture. more

Thinking Strategically About the Benefits of IPv6

In a recent blog post How to Sell IPv6 to Executives -- Guidance for Engineers, the feedback I got from mailing list discussions was that the case for IPv6 was more of mitigating risk than some inherent benefit of IPv6 itself. That is quite true depending on context. In this article, I will attempt to give more insight into the benefits of deploying IPv6. In a nutshell, viewed from the traditional lens of benefit as something we know and recognise based upon experience, IPv6 has little benefit apart from the large address space. more

The Company You Keep

This story started earlier this year, with a posting to the Australian network operators' mailing list, asking if anyone had more information about why the web site that was operated by an outfit called "Melbourne Free University" was inaccessible through a number of major Australian ISPs. When they asked their local ISP if there was some issue, they were informed that "this was due to an Australian government request, and could say no more about it." more

We Have Now Run Out of IPv4 Addresses, Says RIPE NCC

The organization responsible for providing global Internet resources, including addresses in Europe, the Middle East and parts of Central Asia has announced that as of today, 25 November 2019, it has run out of IPv4 addresses. more

LACNIC, Google, CaribNOG and Internet Society to Hold ‘Internet Week Trinidad and Tobago’

The Latin American and Caribbean Internet Registry (LACNIC) and Google will hold a series of workshops next month as part of Internet Week Trinidad and Tobago, an event intended to advance the Internet development agenda of the wider region. The workshops are part of a project through which LACNIC and Google seek to strengthen digital markets in Central American and Caribbean countries. This joint project seeks to enhance local connectivity and strengthen the ecosystem for entrepreneurs. more

An Insider’s Guide to the IPv4 Market - Updated

On September 24, 2015, the free supply of IPv4 numbers in North America dwindled to zero. Despite fears to the contrary, IPv4 network operators have been able to support and extend their IP networks by purchasing the IPv4 address space they need from organizations with excess unused supply through the IPv4 market. The IPv4 market has proved to be an effective means of redistributing previously allocated IPv4 numbers, and could provide enough IPv4 addresses to facilitate the Internet's growth for several more years while the protracted migration to IPv6 is underway. more

Current ICANN Policy Precludes the ITU Becoming an IP Address Registry

Lost in all the discussion around the recent ITU meeting (TIES account required of course) is any discussion of the current policy regarding the formation of new RIRs. You may recall that one of the reports that the ITU commissioned on this subject suggests that it would be possible, even desirable for the ITU to be allocated a /12 of IPv6 from the IANA to be further allocated to Country Internet Registries. more

The Death of IP Based Reputation

Back in the dark ages of email delivery the only thing that really mattered to get your email into the inbox was having a good IP reputation. If your IP sent good mail most of the time, then that mail got into the inbox and all was well with the world. All that mattered was that good IP reputation. Even better for the people who wanted to game the system and get their spam into the inbox, there were many ways to get around IP reputation. more

Close to 20% VPN Providers Reported Leaking Customer IP Addresses via WebRTC Bug

Close to 20% of popular VPN services are reported to be leaking customer's IP address via a WebRTC bug known since January 2015, and which "some VPN providers have never heard of." more

Microsoft Cancels Plans to Move Its Internal Wireless Network to IPv6-Only

Microsoft has digressed from a previously announced plan to move its internal wireless guest network to IPv6-only. more

IP Address Blocking

A network can fence its own IP addresses or block specific external ones from access. Administrators frequently block access to their own IP addresses to bar unwanted access to content. Individual IPs or blocks of IPs may also be blocked due to unwanted or malicious behavior. IP address blocking prevents a specific IP address or group of IP addresses from connecting with a server, computer, or application. more

Summit to Focus on Knowledge Sharing for IPv6 Deployment

The IPv6 Forum, the North American IPv6 Task Force, and Charmed Technology, Inc. today announced that the U.S. IPv6 Summit 2003 will be held December 8 - 11, 2003 in Arlington, VA, at the Doubletree Crystal City. The U.S. IPv6 Summit 2003 will focus on deployment, technical depth of key IPv6 features, and applications or services of Internet Protocol version 6 (IPv6).  more

Google as a Real-time Blackhole List

For those not familiar with RBL, the term means Real-time Blackhole List, it is mainly used for SPAM fighting. I have recently started playing around with Google as an RBL engine, the idea is that if the search term I use hits too many hits it is likely to be SPAM. The danger of course is that the term could be simply popular -- but the trick here is that I'm using something very special as the search term -- the IP address of the poster. more

Internet Records Retention Bill

A lot of pixels have been spilled lately over an Internet records retention bill recently introduced in both the House and the Senate. The goal is to fight child pornography. That's a worthwhile goal; however, I think these bills will do little to further it. Worse yet, I think that at least two of the provisions of the bill are likely to have bad side effects... more