Posts tagged IPv6
Today is the day many companies and organizations permanently enable IPv6 for their products and services. This is a big deal.
We’ve had all of our major public servers accessible by both IPv4 and IPv6 for some time, and continuously since World IPv6 Day last year. We’ve also been assigning IPv6 networks by request to customers with routers and network gear capable of supporting it. We’d love to assign more, but although enterprise-grade equipment and every major computer operating system supports IPv6, support in consumer-grade equipment such as DSL routers has been in a chicken-and-egg limbo for years.
So what’s the big deal?
The Internet has run on the IPv4 protocol since September, 1981. An IPv4 address is a 32-bit value, which provides around 4 billion unique IP addresses. Even though changes have been made to the allocation and usage of this space, from replacing the original classed network system with CIDR to routing schemes like NAT, it was never really designed or intended for an rapidly growing public Internet, and it’s clearly at the end of its road.
IPv6, which has actually been around for longer than you might think, is the next generation of Internet addressing. Will it ever fully replace IPv4? That’s unknown but the days of freely allocating more IPv4 addresses are at an end.
IPv6 uses a 128-bit address and provides a vastly larger number of unique IP addresses. Large enough to handle 4 billion unique organizations each with 4 billion unique clients each with their own 64-bit address space, itself 4 billion times larger than the entire IPv4 address space. IPv6 provides the room to create and implement advanced networking features like auto-configuration, efficient routing, and simplified renumbering.
What can you do to help move us further away from IPv4?
Talk to your Internet and/or hosting provider about IPv6 and ask about their deployment plans. Ask them to publicly comment or announce their plans. Talk to your IT department and ask the same questions.
Welcome to the production Internet!
Or “How I Stopped Worrying and Learned to Love SaaS”
I touched on monitoring in an earlier post but I thought that I would expand on my thoughts.
Let me just get this out there: LogicMonitor (company site) is awesome. It’s not perfect (what is?), but it’s amazing, simple, straightforward, and it works. It combines effective monitoring with graphing (metrics); it’s easy to understand and customize and it works.
Repeat: It works.
Having helped a customer setup VPNs for private connectivity to several large (ie. Fortune 100) companies lately, I’ve really dreaded seeing how NAT has been abused to the extent that it is making private islands on the Internet and breaking everything from routing to DNS to any future protocol enhancements. (more…)
LogicMonitor is a really cool server and network monitoring and measurement system which we’ve been working with. It uses a lightweight monitoring agent installed on your local network which collects data from your systems and passes it over SSL to an external aggregator. It’s capable of auto-discovery and is mostly self-configuring though you can adjust many of the metrics. After many years of working with patchwork monitoring and alert systems we’re pretty excited about it. Call us if you’re interested.
Setting up a monitoring agent on your local network is easy. The server hosting the agent just needs a JRE (Java Runtime Environment) installed using version 1.6 or greater and must be able to make an outgoing SSL connection. To monitor Windows systems, you’ll need to install the agent on a Windows server.
Part 2: The Webcluster
Last week I discussed moving my personal infrastructure into an vmForge Virtual Data Center. I discussed setting up a pfSense firewall, and getting things ready for my various projects. The first one that I wanted to tackle was setting up a load balanced webcluster.