IPv6 – Into6

IPv6 – too many addresses?

Posted on July 5, 2014March 4, 2015By Karl Auer

Talking with people about IPv6, I regularly hear the complaint that IPv6 subnets have “too many addresses”. That it is … Read MoreIPv6 – too many addresses?

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Why “why” matters

Posted on June 20, 2014June 20, 2014By Karl Auer

A participant on the NANOG mailing list recently made the comment that “with a small amount of conceptual knowledge, the … Read MoreWhy “why” matters

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Subnet Router Anycast Addresses – what are they, how do they work?

Posted on March 30, 2014December 3, 2015By Karl Auer

Discussions on several mailing lists have shown that there is still a lot of misunderstanding”out there” about what subnet router … Read MoreSubnet Router Anycast Addresses – what are they, how do they work?

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DHCPv6 – is REBIND pointless?

Posted on June 28, 2013June 28, 2013By Karl Auer

As part of improving our course materials, I was refreshing my understanding of DHCPv6 a couple of days ago, and … Read MoreDHCPv6 – is REBIND pointless?

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A MikroTik router and Internode’s IPv6

Posted on May 13, 2013June 21, 2013By Into6

Here is how I got my MikroTik RB951-2n working with Internode’s native IPv6 service over ADSL. I did not nut … Read MoreA MikroTik router and Internode’s IPv6

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IPv6 – get to the church on time!

Posted on May 13, 2013May 13, 2013By Karl Auer

In a mailing list I frequent, the conversation turned to tunnels as a means of getting IPv6 access. A personage … Read MoreIPv6 – get to the church on time!

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IPv6 source address selection – what, why, how?

Posted on March 25, 2013May 2, 2013By Karl Auer

IPv6 source address selection must be very irritated; destination address selection gets all the press coverage. This article will start … Read MoreIPv6 source address selection – what, why, how?

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Why Not NAT?

Posted on March 25, 2013May 2, 2013By Karl Auer

NAT came into existence because of IPv4 address scarcity. With IPv6, that reason disappears. So, if we no longer need … Read MoreWhy Not NAT?

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Migrating applications to IPv6

Posted on March 22, 2013By Karl Auer

So you have an application. It was written (as far as you know) without IPv6 in mind, and now it … Read MoreMigrating applications to IPv6

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/etc/gai.conf – it ain’t what you think it is

Posted on March 20, 2013March 20, 2013By Karl Auer

If you read the doco (like “man gai.conf“) you would be forgiven for thinking that the contents of /etc/gai.conf controlled … Read More/etc/gai.conf – it ain’t what you think it is