Archive for June 12th, 2010
IPV6 Could You Confuse Me Anymore?
As I begin to study IPV6, I have found that yes, we are truly running out. I also know that many companies don’t use NAT (Network Address Translation) so therefore; we will run out in 2011 or just shortly after this next year. How many days away are we? A little over 100. It’s crunch time for IT personnel.
There are two types of IP addresses. Public and Private. Private numbers are NATed. They allowed us to have IP addresses that were 10.x.x.x, or 172.16.x.x or 192.168.x.x. NAT allows us to have multiple computers in our home and our home router would have one public number supplied by our ISP. May sound complicated to the novice but actually is pretty easy if you could see it drawn out. For example our school has four IP addresses that are public (we have four lines coming in) but behind it has hundreds of nodes (computers, Access Points, Bridges, Printers and other devices.)
While studying IPV6, I have also found that while IPV4 allowed for around 4 billion addresses. Ok, so I knew that. But IPV6 will now be implemented and confusing as it is now will provide 3.4×1038 of addresses.
Now that is 340,282,366,920,938,463,463,374,607,431,768,211,456 addresses. Want to say it?
Ok, I had to look this up – ready?
Three hundred and forty undecillion, two hundred and eighty-two decillion, three hundred and sixty-six nonillion, nine hundred and twenty octillion, nine hundred and thirty-eight septillion, four hundred and sixty-three sextillion, four hundred and sixty-three quintillion, three hundred and seventy-four quadrillion, six hundred and seven trillion, four hundred and thirty-one billion, seven hundred and sixty-eight million, two hundred and eleven thousand, four hundred and fifty-six.
Got it?
So where do you start? Honestly, you have to start at your ISP. As ISPs adopt IPV6, routers, DNS Servers and other computers will have to change. Your webservers will need to be reachable by IPv6. What about your desktop level? Linux, MAC and Windows are supporting IPV6. The operating system folks knew it was coming. However, some hardware from routers, firewalls, load balancers and other devices may have to be changed or updated. For several years, IPV4 and IPV6 will be supported, running parallel to one another. One day we will slowly let go of IPV4 and only us ‘old’ guys will know what it was.
Link to our materials on IPv6
http://ttcshelbyville.wordpress.com/?s=ipv6
And to add to this post – ARIN’s President and CEO
Very nice post. I’d add that you need to begin planning to have your public servers (web, email, DNS) reachable via IPv6. Talk to your ISP about getting IPv6 over your existing IPv4 service, plan how to add IPv6 addresses to your external servers, and make sure you review your security configuration for handling IPv6 traffic.
For additional information, you can look to ARIN’s wiki for IPv6 information:http://www.getipv6.info
/John
John Curran
President and CEO
American Registry for Internet Numbers (ARIN)
Repair 32bit Internet Explorer in Windows 7 64 bit
Excellent resource to repair IE in Windows 64bit From the author’s blog:
This script is a rewrite of my repair script for IE6. It works with IE7 and IE8. There are two new downloads for 64bit systems, one for 32bit IE, one for 64bit IE. I thank several users from the newsgroups/forums for testing and fellow MVP Robert Aldwinckle for valuable tips. I don’t have a 64bit version of Windows installed, so the new scripts would not exist without them.
If the above scripts do not work, type SFC /scannow this will scan and ‘hopefully’ fix any files that may need to be repaired.
