Versions Compared


  • This line was added.
  • This line was removed.
  • Formatting was changed.


The following message from an ARIN mailing list, recounts one person's experience with IPv6 renumbering:

Code Block

My organization recently changed IPv6 numbers. We had used EUI64 addressing on servers
and used a "subnetting" scheme that was logical and sustainable. It did not require
actually touching any servers to change IPs. It was done as such: Add IP prefix to
appropriate router interfaces, run find-replace script to fix prefixes in DNS, wait,
remove old IP prefixes from router interfaces.

While I  am not trying to diminish the valid conversation about difficulties involved
in renumbering, etc., I am actually doing, and have done this. IPv6 is not IPv4, and
there are some aspects of it that change the ways things are/can be done. In our
experience, the largest hurdle involved in using IPv6 effectively is getting folks
to break out of the IPv4 way of thinking. With larger address spaces come the
ability to address interfaces, etc. in a more logical way, that when added to some
of the nice things like EUI64 addressing, can make "re-numbering" considerably easier.

We do not terminate VPNs, and in fact, because of limitations associated with
traditional VPN-V4 L3 MPLS where services like Multicast and IPv6 have been concerned,
we don't use that technology (much - we have the luxury of being able to not use it
for the most part). We do have a great many downstream members (members to us, most
would call them "customers") who use our IP space. One of them is very active with
IPv6 (a larger community college of all places, not a major university), and I
understand they simply made prefix changes much as we did, as they planned for
this eventuality when they initially deployed.

You might also want to have a look at RFC 4192 entitled Procedures for Renumbering an IPv6 Network without a Flag Day to better understand how the process differs from IPv4.

Not Your Usual Panhandler

Doug Eaton wanted to celebrate his birthday on June 11 in a big way, so he turned to his friends for ideas – ended up marking the day with random acts of kindness, including handing out free money to people passing by.


Not Your Usual Panhandler - good, positive news, inspirational stories, articles

An Incredible Graduation Gift from Dad

Brenna Martins dad evidently doesnt like last-minute shopping. Bryan Martin a purchased a gift for his daughters high school graduation – which happened earlier this month – thirteen years ago. He managed to keep it hidden this whole time, and his "moving, touching, nostalgic, and thoughtful" present (her words) brought Brenna to tears when dad finally gave it to her last week.


An Incredible Graduation Gift from Dad - good, positive news, inspirational stories, articles

What Ive Learned About Learning

We learn more by looking for the answer to a question and not finding it than we do from learning the answer itself. ~Lloyd AlexanderI am a teacher and an avid learner, and Im passionate about both.Im a teacher because I help Eva homeschool our kids OK, she does most of the work, but I do help, mostly with math but with everything else too.


What Ive Learned About Learning - good, positive news, inspirational stories, articles

What Is Your Legacy? Living A Meaningful life

I want the world to be better because I was here. I want my life, I want my work, my family, I want it to mean something and if you are not making someone elses life better then you are wasting your time Will Smith


What Is Your Legacy? Living A Meaningful life - good, positive news, inspirational stories, articles

The Relationship Between Gifts & Community

Wherever I go and ask people what is missing from their lives, the most common answer (if they are not impoverished or seriously ill) is "community." What happened to community, and why dont we have it any more? There are many reasons the layout of suburbia, the disappearance of public space, the automobile and the television, the high mobility of people and jobs and, if you trace the "whys" a few levels down, they all implicate the money system.


The Relationship Between Gifts & Community - good, positive news, inspirational stories, articles