One Network Arhitect's View of Life, the Internet, and Everything
From the category archives:
The primary difference between IPv4 and IPv6 addresses is length. IPv4 addresses are 32 bits long and IPv6 addresses are 128 bits long. This means that an IPv4 address is made up of 32 1s and 0s while an IPv6 address is made up of 128 of them – 128 binary digits. This massive length forces IPv6 addresses to be written using a different notation than IPv4 addresses and thus makes them very easy to distinguish from IPv4 addresses.
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Since I’m starting to speak more publicly and more often, I thought I’d throw out a schedule so that folks will know where I’ll be. So, to kick that off, here is my next 3 months of speaking engagements: LACNIC XVI / LACNOG 2011 / Internet ON 3 to 7 October 2011 Buenos Aires, Argentina [...]
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The American Registry for Internet Numbers (ARIN) announced today (27 September 2011) the publication of ARIN Number Resource Policy Manual (NRPM) version 2011.4. As an active member of the ARIN community and an elected member of the ARIN Advisory Council (AC), I am always excited to see new policies implemented (yes, I’m a special breed [...]
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The 2011 Rocky Mountain IPv6 Summit was held in Denver earlier this week (25-27 April) at the Grand Hyatt. It was a great event, as we have come to expect from the Rocky Mountain IPv6 Task Force. I was especially pleased that they stepped the presentation content up a notch with regard to technical depth [...]
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Day One: Advanced IPv6 Configuration is a sequel to my first book, Day One: Exploring IPv6, and picks up right where it left off. Namely with BGP. In addition to a fairly thorough look at BGP (iBGP and eBGP / native IPv6 peering and sharing IPv6 routes over IPv4 peering), the book jumps into a few of the additional and often overlooked aspects of deploying an IPv6 network. This includes a look into topics and tools including VRRP, ICMPv6 rate limiting, CoS, IPv6 path MTU discovery, DHCPv6, zero hop-limit, Multicast Listener Discovery (MLD) and Duplicate Address Detection (DAD).
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I just sat in on a call/talk/presentation by Leo Vegoda (the guy who operates the IANA for ICANN) on IPv6. Overall, it was a great primer on IPv6, the exhaustion of IPv4 and the future of Internet addressing. One idea that I would especially like to echo here is his suggestion for everyone to send [...]
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Before we look at what breaks, I should probably make sure that you know what it is that I’m talking about here. If you already know all about traditional NAT and address overloading, skip to the NAT444 section. If you are familiar with that as well, feel free to skip right to the list of [...]
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