All effective spam filters use DNS blacklists or blocklists, known as DNSBLs. They provide an efficient way to publish sets of IP addresses from which the publisher recommends that mail systems not accept mail. A well run DNSBL can be very effective; the Spamhaus lists typically catch upwards of 80% of incoming spam with a very low error rate. DNSBLs take advantage of the existing DNS infrastructure to do fast, efficient lookups. A DNS lookup typically goes through three computers... more
The Internet Routing Registry (IRR) is a globally distributed routing information database. The IRR consists of several databases run by various organisations in which network operators can publish their routing policies and their routing announcements in a way that allows other network operators to make use of the data. In addition to making Internet topology visible, the IRR is used by network operators to look up peering agreements, determine optimal policies and, more recently, to configure their routers. more
With the market for connected humans reaching saturation in advanced economies, mobile operators now see connected devices as the next growth opportunity. 'Everything that can benefit from being connected will be connected', according to Ericsson's CTO (source). In the meantime, Intel dreams of embedding processors into everything that can gain something from communicating. more
Mobile Network Operators (MNOs) serve the largest constituent of connected devices. There are over 4.6B GSM (and its derivatives) subscriptions today. When you add the CDMA family along with technologies with smaller footprints such as WiMax, IDEN to this list, that number tops 5B mark. On the other hand there are only (yes only!) 800M Internet hosts per ISC. Considering such a small percentage of those 5B or so devices are capable of being an Internet host and out of that percentage even a much smaller percentage is connected at a given time, one can understand the sheer potential of explosion in the number of Internet hosts as mobile devices in the next 3-5 years. more
One way to determine the denseness of the Internet, or its "interconnectedness", is to look at the path length between Autonomous Systems (ASes). The "shortest AS path" is a route selection rule in the Border Gateway Protocol (BGP) that means traffic from one AS will chose the path with the least number of ASes to get to the receiving AS. With IPv6 being deployed in parts of the Internet, we looked at the AS path length to see if the IPv6 portion of the Internet is more or less interconnected than the IPv4 Internet. more
The Number Resource Organization (NRO) announced today that less than five percent of the world's IPv4 addresses remain unallocated. APNIC, the Regional Internet Registry for the Asia Pacific region, has been assigned two blocks of IPv4 addresses by the Internet Assigned Numbers Authority (IANA). This latest allocation means that the IPv4 free pool dipped below 10% in January, just nine months ago. Since then, over 200 million IPv4 addresses have been allocated from IANA to the Regional Internet Registries (RIRs). more
Last month, the Obama administration sponsored one of the first high-level government workshops on IPv6. At the meeting, the administration's Chief Information Officer, Vivek Kundra, announced a remarkable 2012 deadline for federal agencies to support IPv6. So with a high-level US government mandate and a recent spade of vendor and carrier IPv6 announcements (e.g. VeriSign, Hurricane Electric), is the 15 year old IPv6 migration effort finally gaining momentum? more
Brokenness refers to the situation whereby a website is made accessible in dual stack, meaning both IPv4 and IP6, using records referred to as A's for IPv4 and quad A's for IPv6. Some end-users can experience slower access to the website or in some rarer instances no access at all. Brokenness is mostly attributable to older versions of the Mac Os operating system... The brokenness issue has been very well described by Eric Vyncke... more
The National Telecommunications and Information Administration (NTIA) is hosting a workshop today discussing the state of IPv6 in the U.S. and its impact on the industry, government, and the Internet economy. The moderators for the workshop are Aneesh Chopra, Chief Technology Officer of the United States and Vivek Kundra, Chief Information Officer of the United States. Participants include... more
The RIPE Database is about to enter its fourth decade. It began humbly as a place to store network and contact information back when the RIPE community formed in 1989. When the RIPE Network Coordination Centre (NCC) was created three years later and started to assign and allocated IP address space, the database was expanded to include the registration of more detailed network and routing information. more
Larry Seltzer writes: Politico? Comcast's PR gets an 'A' for this article, an upbeat tech-lite description of the impending depletion of the IPv4 space and efforts to adopt IPv6. It also seems that the Obama administration is behind this, and that the Federal government has had "remarkable foresight on this issue." I feel better already. more
At the IGF2010 in Vilnius, two folk are floating a trial balloon about separating the allocation function from the registry services function. Currently, these functions are seen as indivisible by the Internet addressing community. In other words, one gets an allocation or assignment from a RIR and the RIR adds the assignment to their database... The question being asked is "Is it time for a split between allocation and services for Internet number resources as was the case for domain name resources?" My answer is no more
IPv6 a major catalyst for billions of dollars worth of deals? The Intel announcement of their McAfee purchase for 7.7 billion seems to indicate as much when Dave DeWalt , McAfee CEO is quoted as saying during a conference call; "If we look at the transition from IPv4 to IPv6, we're seeing an explosion of billions of devices and they all need to be secured." more
Eric Vyncke reporting in the NetworkWorld: "IPv6 exists for more than 15 years and it is rumored to be deployed extensively in Asia and especially in Japan and China with Africa being the last continent to deploy IPv6. Another place where there should be a lot of deployments is of course in the USA with the US Government IPv6 mandates. But, when it comes to measure where web sites are actually deployed over IPv6, the rumor proves to be just a myth..." more
We are at the height of vacation season here in the Netherlands, and the RIPE NCC headquarters in Amsterdam are quieter than usual. The downtime has given me a chance to reflect on how the recent economic downturn has affected our membership growth. The good news is that it hasn't. more
A World-Renowned Source for Internet Developments. Serving Since 2002.