{"id":1869,"date":"2017-04-12T23:18:41","date_gmt":"2017-04-12T23:18:41","guid":{"rendered":"https:\/\/live-infoblox-blog.pantheonsite.io\/?p=1869"},"modified":"2020-05-06T10:28:00","modified_gmt":"2020-05-06T17:28:00","slug":"using-a-content-delivery-network-to-ipv6-enable-your-site","status":"publish","type":"post","link":"https:\/\/www.infoblox.com\/blog\/ipv6-coe\/using-a-content-delivery-network-to-ipv6-enable-your-site\/","title":{"rendered":"Using a Content Delivery Network to IPv6-Enable your Site"},"content":{"rendered":"<h2 id=\"toc-hId-649968706\">Deciding to IPv6-enable Your Web Site<\/h2>\n<p>There are many reasons why an organization would want to make their web site reachable over IPv6 transport.\u00a0 One reason is that due to\u00a0<a href=\"https:\/\/community.infoblox.com\/t5\/IPv6-CoE-Blog\/North-America-s-IPv4-Address-Shortage\/ba-p\/3503\" target=\"_blank\" rel=\"noopener noreferrer\">IPv4 address exhaustion<\/a>\u00a0and more carriers deploying\u00a0<a href=\"http:\/\/www.networkworld.com\/article\/2237054\/cisco-subnet\/understanding-carrier-grade-nat.html\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">Carrier Grade NAT<\/a>\u00a0(CGN) and\u00a0<a href=\"http:\/\/www.networkworld.com\/article\/2231905\/cisco-subnet\/large-scale-nat-architectures.html\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">Large Scale NAT<\/a>\u00a0(LSN), your web site may perform better with IPv6.\u00a0 A second reason, related to IPv4 address exhaustion, is that someday soon there may be IPv6-only end-users that may have difficulty reaching a legacy IPv4-only site.\u00a0 A third reason is that, in some cases,\u00a0<a href=\"https:\/\/community.infoblox.com\/t5\/IPv6-Center-of-Excellence\/Can-IPv6-Really-Be-Faster-than-IPv4-Part-1\/ba-p\/6419\" target=\"_blank\" rel=\"noopener noreferrer\">IPv6 Internet connectivity can actually be faster than the IPv4<\/a>\u00a0variety\u00a0and this could be another strong motivation for enabling IPv6.\u00a0 Regardless of the exact reason, the choice to make your web site accessible by the \u201cwhole Internet\u201d using either IPv4 or IPv6 is a solid technical risk-mitigation strategy.<\/p>\n<p>If you are a\u00a0<a href=\"http:\/\/www.networkworld.com\/article\/2223550\/cisco-subnet\/u-s--government-progress-on-ipv6-deployment.html\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">U.S. federal government<\/a>\u00a0organization, then your motivation for IPv6-enabling your site comes from guidance provided by the\u00a0<a href=\"https:\/\/www.whitehouse.gov\/omb\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">OMB<\/a>,\u00a0<a href=\"https:\/\/www.nist.gov\/programs-projects\/usgv6\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">NIST<\/a>, and the\u00a0<a class=\" bf_ungated_init\" href=\"https:\/\/cio.gov\/wp-content\/uploads\/downloads\/2012\/09\/2012_IPv6_Roadmap_FINAL_20120712.pdf\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">Federal CIO Council<\/a>\u00a0in their memorandum\u00a0<a class=\" bf_ungated_init\" href=\"https:\/\/georgewbush-whitehouse.archives.gov\/omb\/memoranda\/fy2005\/m05-22.pdf\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">M-05-22<\/a>\u00a0published on August 2, 2005 and\u00a0<a class=\" bf_ungated_init\" href=\"https:\/\/cio.gov\/wp-content\/uploads\/downloads\/2012\/09\/Transition-to-IPv6.pdf\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">the subsequent memorandum<\/a>\u00a0drafted by Vivek Kundra, the Federal CIO, on September 28, 2010.\u00a0 As a result of this mandate,\u00a0<a href=\"https:\/\/usgv6-deploymon.antd.nist.gov\/cgi-bin\/generate-gov\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">many federal departments and agencies were able to IPv6-enable<\/a>\u00a0their DNS, web, and e-mail Internet-facing services.<\/p>\n<h2 id=\"toc-hId-678597857\">Making your Own Site Natively Reachable with IPv6<\/h2>\n<p>If you have your own on-premises data center and are hosting your web site locally, then there are many steps required to IPv6-enable your site.\u00a0 Following are some of the typical steps required to make your self-hosted web site natively reachable to the Internet using IPv6.<\/p>\n<ul>\n<li>Call your ISP and request adding IPv6 to your upstream link(s)<\/li>\n<li>Get your IPv6 address allocation (from your RIR or from your ISP)<\/li>\n<li>Advertise that IPv6 address block to your upstream ISP(s), and verify Internet reachability<\/li>\n<li>Configure IPv6 addressing to and through your firewall, adding the minimum permit policies<\/li>\n<li>Configure IPv6 addressing on your web server and testing Internet reachability<\/li>\n<li>Add IPv6 address(s) to your authoritative DNS server(s) for your web site, and test as necessary<\/li>\n<\/ul>\n<p>These steps may be similar if you are hosting your public web site at a colocation facility on your own servers.\u00a0 But what would you do if your marketing department has put your company\u2019s web site on an IPv4-only hosting provider?<\/p>\n<p>If you are using a\u00a0<a href=\"https:\/\/community.infoblox.com\/t5\/IPv6-Center-of-Excellence\/Cloud-and-IPv6\/ba-p\/3510\" target=\"_blank\" rel=\"noopener noreferrer\">cloud service provider<\/a>\u00a0or a hosting provider to service your web site, then you are reliant on that service provider for IPv6-enabling your site.\u00a0 In the best case, you can contact your IPv6-capable cloud provider,\u00a0<a href=\"https:\/\/community.infoblox.com\/t5\/IPv6-Center-of-Excellence\/Amazon-Web-Services-Is-Getting-into-the-IPv6-Holiday-Spirit\/ba-p\/8565\" target=\"_blank\" rel=\"noopener noreferrer\">like AWS<\/a>, to request assistance enabling IPv6.\u00a0 In the worst case, you may be in the difficult situation of having to change service providers to one that offers IPv6 Internet connectivity along with IPv6 web server application support.<\/p>\n<h2 id=\"toc-hId-707227008\">Content Delivery Networks and IPv6<\/h2>\n<p>If your organization\u2019s own data center or cloud service provider does not yet support IPv6 connectivity for your web site, then\u00a0<a href=\"http:\/\/www.internetsociety.org\/deploy360\/blog\/2012\/05\/video-how-to-ipv6-enable-any-website-using-a-cdn\/\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">one technique you can employ to gain IPv6 support is to use a Content Delivery Network<\/a>\u00a0(CDN).\u00a0\u00a0<a href=\"https:\/\/en.wikipedia.org\/wiki\/Content_delivery_network\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">Content Delivery Networks<\/a>\u00a0(CDNs) leverage their globally distributed network footprint to cache static and streaming content provided by their customers to end-users worldwide.\u00a0 CDNs help accelerate the delivery of the online content to the end-users providing a better experience by facilitating a high-performance and high-redundancy service.<\/p>\n<p>The\u00a0<a href=\"https:\/\/en.wikipedia.org\/wiki\/Content_delivery_network\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">CDN<\/a>\u00a0will cache the content of your web site and then deliver it to your clients over both IPv4 and IPv6.\u00a0 Your web site that is on the back-end of the CDN provider\u2019s proxy function can remain IPv4 for service of the content, but to the Internet-based user, the site would appear as if it were IPv6-reachable.\u00a0 This is a technique that many\u00a0<a href=\"http:\/\/www.internetsociety.org\/deploy360\/blog\/2012\/09\/with-september-30-deadline-looming-us-government-enables-ipv6-for-hundreds-of-websites\/\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">U.S. federal organizations used<\/a>\u00a0to help them meet the\u00a0<a class=\" bf_ungated_init\" href=\"https:\/\/www.whitehouse.gov\/sites\/default\/files\/omb\/assets\/egov_docs\/transition-to-ipv6.pdf\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">September 30, 2012 IPv6 Internet-edge deployment mandate<\/a>.<\/p>\n<p><a href=\"https:\/\/en.wikipedia.org\/wiki\/Content_delivery_network\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">CDN companies<\/a>\u00a0have been quick to realize the benefits of using IPv6 to facilitate connecting their customer\u2019s content to clients.\u00a0 Therefore, most of the\u00a0<a href=\"http:\/\/www.internetsociety.org\/deploy360\/resources\/ipv6-and-content-delivery-networks-cdns\/\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">larger CDN providers made early progress on their IPv6 offerings<\/a>\u00a0and now many offer IPv6 connectivity for their customer\u2019s content.\u00a0 In some cases, configuration of the IPv6 functionality is a simple check-box on a web form that the content owner submits when establishing CDN service.<\/p>\n<ul>\n<li><a href=\"https:\/\/www.akamai.com\/us\/en\/solutions\/intelligent-platform\/visualizing-akamai\/ipv6-traffic-volume.jsp\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">Akamai has supported IPv6<\/a>\u00a0for many years now and is one of the world\u2019s largest CDN providers.\u00a0 Akamai offers CDN services, but also added web security and DDoS mitigation services.\u00a0 Akamai has created an\u00a0<a href=\"https:\/\/www.akamai.com\/uk\/en\/our-thinking\/state-of-the-internet-report\/state-of-the-internet-ipv6-adoption-visualization.jsp\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">IPv6 Adoption Visualization<\/a>\u00a0site that shows which countries are using more IPv6.<\/li>\n<li>In October of 2016, AWS announced\u00a0<a href=\"https:\/\/aws.amazon.com\/about-aws\/whats-new\/2016\/10\/ipv6-support-for-cloudfront-waf-and-s3-transfer-acceleration\/\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">IPv6 connectivity for CloudFront, S3 buckets, and WAF services<\/a>.\u00a0 This was just\u00a0<a href=\"https:\/\/community.infoblox.com\/t5\/IPv6-Center-of-Excellence\/Amazon-Web-Services-Is-Getting-into-the-IPv6-Holiday-Spirit\/ba-p\/8565\" target=\"_blank\" rel=\"noopener noreferrer\">one of many IPv6-related service announcements AWS made in the Fall of 2016<\/a>.<\/li>\n<li>Microsoft Azure CDN is now\u00a0<a href=\"https:\/\/azure.microsoft.com\/en-us\/updates\/ipv6-for-azure-vms\/\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">starting to offer IPv6 services to customers in specific regions<\/a>.\u00a0 In the highly competitive world of public cloud IaaS, you can be sure that Microsoft Azure and AWS will strive to offer similar IPv6 services.<\/li>\n<li><a href=\"https:\/\/www.belugacdn.com\/\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">BelugaCDN<\/a>\u00a0is a very economical CDN provider that offers competitive features at competitive prices.\u00a0 BelugaCDN claims to be\u00a0<a href=\"http:\/\/www.prunderground.com\/belugacdn-becomes-the-worlds-first-fully-featured-ipv6-content-delivery-network\/0079031\/\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">the world\u2019s first fully-featured IPv6-enabled CDN<\/a>.<\/li>\n<li><a href=\"https:\/\/www.fastly.com\/products\/fastly-managed-cdn\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">Fastly is a modern CDN<\/a>\u00a0that is gaining momentum among their cloud-enabled customers.\u00a0 Fastly started to\u00a0<a href=\"https:\/\/www.fastly.com\/blog\/announcing-limited-availability-ipv6\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">provide limited IPv6 services for clients last summer<\/a>.\u00a0\u00a0<a href=\"https:\/\/www.fastly.com\/blog\/ipv6-fastly\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">Jason Evans of Fastly wrote a recent article<\/a>\u00a0on the benefits of enabling IPv6 with Fastly and how to configure it and test.<\/li>\n<li><a href=\"https:\/\/www.incapsula.com\/\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">Imperva\/Incapsula<\/a>\u00a0is another CDN provider that\u00a0<a href=\"https:\/\/www.incapsula.com\/blog\/ipv6-support-and-ipv6-gateway.html\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">offers IPv6 connectivity<\/a>\u00a0and provides security features such as WAF and DDoS mitigation for their customers.<\/li>\n<li><a href=\"https:\/\/www.limelight.com\/\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">Limelight Networks<\/a>\u00a0has been a\u00a0<a href=\"https:\/\/globenewswire.com\/news-release\/2012\/06\/04\/478407\/258028\/en\/Limelight-Networks-Automates-IPv6-Enablement-for-New-and-Existing-Customers.html\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">long-time supporter of IPv6 connectivity for their CDN customers<\/a>.\u00a0 In fact,\u00a0<a href=\"https:\/\/community.infoblox.com\/t5\/user\/viewprofilepage\/user-id\/4\" target=\"_blank\" rel=\"noopener noreferrer\">Tom Coffeen<\/a>, our very own IPv6 COE teammate and Chief IPv6 Evangelist at Infoblox, formerly worked at Limelight on their IPv6 service offering.<\/li>\n<li><a href=\"https:\/\/www.ovh.com\/us\/about-us\/\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">OVH<\/a>\u00a0is a Roubaix France-based service provider that offers dedicated\u00a0<a href=\"https:\/\/www.ovh.co.uk\/g2365.configure_ipv6_on_your_vps\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">virtual servers<\/a>\u00a0and\u00a0<a href=\"https:\/\/www.ovh.co.uk\/web-hosting\/ipv6.xml\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">cloud hosting<\/a>, all with IPv6 Internet connectivity.\u00a0 OVH also provides an\u00a0<a href=\"https:\/\/www.ovh.com\/us\/ssl-gateway\/\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">IPv6-capable SSL Gateway and CDN service<\/a>.<\/li>\n<li><a href=\"https:\/\/www.verizondigitalmedia.com\/\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">Verizon Digital Media Services<\/a>\u00a0<a href=\"http:\/\/www.edgecast.com\/ipv6\/\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">EdgeCast CDN<\/a>\u00a0service offers\u00a0<a href=\"http:\/\/www.cdn-advisor.com\/edgecast-networks-enables-ipv6-for-its-customers\/\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">IPv6 connectivity<\/a>, similar to how Verizon and their wireless divisions provide IPv6 Internet connectivity for their customers and subscribers.\u00a0 EdgeCast Networks has\u00a0<a href=\"http:\/\/www.businesswire.com\/news\/home\/20120606005681\/en\/EdgeCast-Announces-IPv6-Compliance\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">supported IPv6 since 2012 and participated in World IPv6 Launch Day<\/a>.<\/li>\n<\/ul>\n<p>Note: There can be many more IPv6-enabled CDNs.\u00a0 This was a list of the larger CDNs offering IPv6 connectivity to their customers that my personal research revealed.<\/p>\n<h2 id=\"toc-hId-735856159\">CloudFlare IPv6 Enabled CDN Service<\/h2>\n<p>One notable CDN that has been a strong proponent of IPv6 is Cloudflare.\u00a0\u00a0<a href=\"https:\/\/www.cloudflare.com\/\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">Cloudflare<\/a>\u00a0has been on the forefront of IPv6 adoption and several years ago\u00a0<a href=\"http:\/\/www.internetsociety.org\/deploy360\/blog\/2014\/04\/cloudflare-enabling-ipv6-for-all-customers\/\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">started automatically enabling IPv6 for their customer\u2019s content<\/a>.\u00a0 By making IPv6 the default setting, this helped their customers unknowingly implement it and it seamlessly worked.\u00a0 Because most web browsers on computers and mobile devices use the\u00a0<a href=\"https:\/\/blog.apnic.net\/2016\/07\/25\/happy-eyeballs-promoting-healthy-ipv4-ipv6-coexistence\/\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">Happy Eyeballs<\/a>\u00a0algorithm (<a href=\"https:\/\/tools.ietf.org\/html\/rfc6555\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">RFC 6555<\/a>), they connect using the best performing IP protocol version.\u00a0 This occurs transparently to the user and they have happy eyeballs because they have better end-user experience.\u00a0 CloudFlare made IPv6 the default and required you to manually disable IPv6 and have an IPv4-only web service. During that change you would have seen the following error message when deviating from the defaults:<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-1872\" src=\"https:\/\/live-infoblox-blog.pantheonsite.io\/wp-content\/uploads\/ipv6-turned-off.jpg\" alt=\"Notice that IPv6 is turned off\" width=\"467\" height=\"284\" srcset=\"https:\/\/www.infoblox.com\/blog\/wp-content\/uploads\/ipv6-turned-off.jpg 467w, https:\/\/www.infoblox.com\/blog\/wp-content\/uploads\/ipv6-turned-off-300x182.jpg 300w\" sizes=\"auto, (max-width: 467px) 100vw, 467px\" \/><\/p>\n<p>As a result of making IPv6 the default, in June of 2016, Cloudflare observed a point where IPv6 surpassed IPv4 connections.\u00a0 The following graph\u00a0<a href=\"https:\/\/twitter.com\/eastdakota\/status\/765699957449895936\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">tweeted by Matthew Prince<\/a>\u00a0<a href=\"https:\/\/twitter.com\/eastdakota\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">(@eastdakota<\/a>) shows the crossover between IPv6 and IPv4 occurring in the Summer of 2016.\u00a0 After years of this practice of enabling IPv6 by default,\u00a0<a href=\"https:\/\/blog.cloudflare.com\/98-percent-ipv6\/\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">98% of Cloudflare\u2019s customers use IPv6<\/a>.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-1870\" src=\"https:\/\/live-infoblox-blog.pantheonsite.io\/wp-content\/uploads\/ipv6-cloud-flare.png\" alt=\"IPv6 with Cloud Flare\" width=\"351\" height=\"500\" srcset=\"https:\/\/www.infoblox.com\/blog\/wp-content\/uploads\/ipv6-cloud-flare.png 351w, https:\/\/www.infoblox.com\/blog\/wp-content\/uploads\/ipv6-cloud-flare-211x300.png 211w\" sizes=\"auto, (max-width: 351px) 100vw, 351px\" \/><\/p>\n<p>Dani Grant, product strategy team memeber from Cloudflare, will be presenting \u201cIPv6 &#8211; A View From The Edge\u201d at the\u00a0<a href=\"http:\/\/www.rmv6tf.org\/na-ipv6-summit\/2017-north-american-ipv6-event\/2017-speakers\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">2017 North American IPv6 Summit<\/a>\u00a0at LinkedIn\u2019s headquarters in Sunnyvale, CA on April 25-26.<\/p>\n<h2 id=\"toc-hId-764485310\">Dual-Protocol Reachable Content Increasing<\/h2>\n<p>The good news is that, despite many large CSP\u2019s and CDN\u2019s historic lack of IPv6 connectivity, the number of web content providers and popular web sites accessible over IPv6 transport has significantly increased.\u00a0 Many have had concerns that a lack of IPv6 service by the largest CSPs would prevent the\u00a0<a href=\"http:\/\/www.alexa.com\/topsites\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">Alexa<\/a>\u00a01M from reaching higher IPv6 adoption rates.\u00a0 However, now over 19% of the Alexa top web sites have a AAAA DNS record.\u00a0\u00a0<a href=\"https:\/\/twitter.com\/dan_wing\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">Dan Wing<\/a>, protocol architect, long-time IPv6 advocate and co-author of\u00a0<a href=\"https:\/\/tools.ietf.org\/html\/rfc6555\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">Happy Eyeballs IETF RFC 6555<\/a>, has created\u00a0<a href=\"http:\/\/www.employees.org\/~dwing\/aaaa-stats\/\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">a site that automatically calculates this statistic<\/a>\u00a0every day.\u00a0 You can see how the numbers have risen from 9% just a year ago to around 18% in 2016.\u00a0 From\u00a0<a href=\"http:\/\/www.employees.org\/~dwing\/aaaa-stats\/\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">Dan\u2019s data set<\/a>\u00a0you can see a spike in dual-protocol web sites during\u00a0<a href=\"http:\/\/www.internetsociety.org\/ipv6\/archive-2011-world-ipv6-day\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">World IPv6 Day<\/a>, a rise after\u00a0<a href=\"http:\/\/www.worldipv6launch.org\/\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">World IPv6 Launch<\/a>, and a dramatic increase since August of 2016.\u00a0\u00a0<a href=\"https:\/\/twitter.com\/evyncke\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">Eric Vyncke<\/a>,\u00a0<a href=\"https:\/\/www.linkedin.com\/in\/evyncke\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">Distinguished Engineer with Cisco<\/a>, my friend and\u00a0<a href=\"http:\/\/www.ciscopress.com\/store\/ipv6-security-9781587055942\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">co-author<\/a>,\u00a0<a href=\"https:\/\/www.vyncke.org\/ipv6status\/\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">also collects this type of IPv6 usage data<\/a>. His site shows this\u00a0<a href=\"https:\/\/www.vyncke.org\/ipv6status\/plotsite.php?metric=w&amp;global=y&amp;pct=y\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">pattern of IPv6 adoption<\/a>\u00a0across all countries.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-1871\" src=\"https:\/\/live-infoblox-blog.pantheonsite.io\/wp-content\/uploads\/ipv6-enabled-websites.png\" alt=\"IPv6 chart about IPv6-enabled countries\" width=\"600\" height=\"410\" srcset=\"https:\/\/www.infoblox.com\/blog\/wp-content\/uploads\/ipv6-enabled-websites.png 600w, https:\/\/www.infoblox.com\/blog\/wp-content\/uploads\/ipv6-enabled-websites-300x205.png 300w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/p>\n<p>Source: Eric Vyncke,\u00a0<a href=\"https:\/\/www.vyncke.org\/ipv6status\/plotsite.php?metric=w&amp;global=y&amp;pct=y\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">https:\/\/www.vyncke.org\/ipv6status\/plotsite.php?metric=w&amp;global=y&amp;pct=y<\/a><\/p>\n<p>Remember, for every web page loaded over IPv6, that is one less web page loaded over IPv4.\u00a0 There is evidence that the tipping point of more connections using IPv6 compared to those using IPv4 is nearing.\u00a0\u00a0<a href=\"https:\/\/community.infoblox.com\/t5\/IPv6-Center-of-Excellence\/IPv6-is-Accelerating-as-IPv4-is-Nearing-its-Peak\/ba-p\/7992\" target=\"_blank\" rel=\"noopener noreferrer\">IPv6 usage is accelerating<\/a>\u00a0and starting to slow the growth of IPv4 usage.<\/p>\n<h2 id=\"toc-hId-793114461\">Summary<\/h2>\n<p>CDNs provide many valuable features to their customers.\u00a0 In addition to caching and broadening the reach of your web site content, they can also provide\u00a0<a href=\"https:\/\/en.wikipedia.org\/wiki\/Denial-of-service_attack#Distributed_attack\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">DDoS<\/a>\u00a0mitigation services,\u00a0<a href=\"https:\/\/en.wikipedia.org\/wiki\/Web_application_firewall\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">Web Application Firewall<\/a>\u00a0(WAF) capabilities (among other features).\u00a0 You may choose a CDN provider to help you secure and improve the performance of your web site.\u00a0 But using a CDN would also be an easy way to provide an IPv6-face to that same web site.\u00a0 Furthermore, not all the CDN\u2019s service may support IPv6.\u00a0 For example, maybe their CDN services support IPv6, but their DDoS mitigation services operate only with IPv4.<\/p>\n<p>Using a CDN to provide an IPv6 face on an IPv4-only site may not be the idealized end-to-end native IPv6 connectivity we are ultimately seeking to achieve.\u00a0 However, using a CDN to at least provide some IPv6 connectivity to your web site is a start and a step in the right direction.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Deciding to IPv6-enable Your Web Site There are many reasons why an organization would want to make their web site reachable over IPv6 transport.\u00a0 One reason is that due to\u00a0IPv4 address exhaustion\u00a0and more carriers deploying\u00a0Carrier Grade NAT\u00a0(CGN) and\u00a0Large Scale NAT\u00a0(LSN), your web site may perform better with IPv6.\u00a0 A second reason, related to IPv4 address [&hellip;]<\/p>\n","protected":false},"author":321,"featured_media":921,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"_genesis_hide_title":false,"_genesis_hide_breadcrumbs":false,"_genesis_hide_singular_image":false,"_genesis_hide_footer_widgets":false,"_genesis_custom_body_class":"","_genesis_custom_post_class":"","_genesis_layout":"","footnotes":""},"categories":[17],"tags":[41,38,46,31,39],"class_list":{"0":"post-1869","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-ipv6-coe","8":"tag-cloud","9":"tag-ipv6","10":"tag-load-balancing","11":"tag-networking","12":"tag-protocols","13":"entry"},"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.3 (Yoast SEO v27.3) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Using a Content Delivery Network to 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