How to represent an IPv6 address properly
There are a number of RFC’s on this but the most recent, 5952, is the one that should be honored at this point. Here’s a breakdown of what you should Continue Reading…
Category: IPv6
Statically configuring IPv6 address & gateway on CentOS/RHEL
By default RHEL/CentOS 5 and 6 have SLAAC enabled, to automatically configure IPv6 addresses if a router advertisement is received on an interface. I find this VERY undesirable on a Continue Reading…
Disabling IPv6 on CentOS
I’ve seen a number of online articles on disabling IPv6 and they often involve blacklisting kernel modules, etc. which is a really bad idea. In most cases it does not Continue Reading…
Create IPv6 addresses (based on IPv4) on a Plesk server
This is a perl script that I wrote to add IPv6 addresses to a pre-existing Plesk server that is already up and running with IPv4 services. The script is based Continue Reading…
IPv6 addressing scheme for existing IPv4 network
A lot of enterprises and hosting providers are getting into IPv6 finally and ideally are running dual-stack so they can offer their users/clients native IPv4 and IPv6. If you’re retroactively Continue Reading…
Howto: IPv6 at your house/office when your ISP sucks
This article includes: Background on why you might need to deal with IPv6 tunneling (basically when your ISP sucks) Prerequisites for adding your own home IPv6 service Setting up IPv6 Continue Reading…
Trouble with OSPFv3 between Brocade & Cisco
Note: in my articles, any time I give a config example, parts you need to replace *should* be in red text. Here’s the CliffsNotes version of this article for those Continue Reading…
How to disable IPv6 stateless autoconfig on Windows 7
For some reason, even if you statically assign an IPv6 address and gateway in Windows 7, it will still do SLAAC anyway and give itself a second auto generated address. Continue Reading…
An IPv6 discard prefix; who knew?!
Found out about this very recently when trying to work on a new blackhole route server; apparently in August 2012 a new RFC, 6666, was published specifically to define a Continue Reading…
IPv6-enabled VPS hosting
So I was recently trying to find hosting for what was going to become this website. I wanted to avoid shared because I like to have control over the server Continue Reading…