<story><title>IPv6 Watch</title><url>https://ipv6.watch/</url></story><parent_chain><item><author>fintler</author><text>A basic understanding of what an IPv6 world will look like really didn&amp;#x27;t click for me until I read the IPv6 Address Planning book by Tom Coffeen. Before that, I really just saw it as IPv4 with longer addresses.&lt;p&gt;Once you dig into the details, you come to the realization that it&amp;#x27;s a nearly complete reinvention of IPv4. Network planning looks quite different (especially when it comes to subnets) when you plan them with only IPv6 in mind.&lt;p&gt;Earlier this year, I was like:&lt;p&gt;&amp;quot;Wow, Comcast gives me a &amp;#x2F;60! That should be more address space than I could ever want or use.&amp;quot;&lt;p&gt;Now, I&amp;#x27;m thinking:&lt;p&gt;&amp;quot;A &amp;#x2F;60 is way too limited, I wish I had a &amp;#x2F;52 or a &amp;#x2F;56 instead -- why is Comcast so restrictive with giving out address space?&amp;quot;&lt;p&gt;I&amp;#x27;m currently reading the IPv6 for IPv4 Experts book to try to fill in more details:&lt;p&gt;&lt;a href=&quot;https:&amp;#x2F;&amp;#x2F;sites.google.com&amp;#x2F;site&amp;#x2F;yartikhiy&amp;#x2F;home&amp;#x2F;ipv6book&quot; rel=&quot;nofollow&quot;&gt;https:&amp;#x2F;&amp;#x2F;sites.google.com&amp;#x2F;site&amp;#x2F;yartikhiy&amp;#x2F;home&amp;#x2F;ipv6book&lt;/a&gt;&lt;p&gt;The more I read about it, the more I feel like I have a long way to go before I really get an intuitive understanding.</text></item></parent_chain><comment><author>Scene_Cast2</author><text>Could you give a brief overview of your current understanding? I&amp;#x27;m curious as to why &amp;#x2F;60 would be too limited, and how it&amp;#x27;s different from IPv4.</text></comment>
<story><title>IPv6 Watch</title><url>https://ipv6.watch/</url></story><parent_chain><item><author>fintler</author><text>A basic understanding of what an IPv6 world will look like really didn&amp;#x27;t click for me until I read the IPv6 Address Planning book by Tom Coffeen. Before that, I really just saw it as IPv4 with longer addresses.&lt;p&gt;Once you dig into the details, you come to the realization that it&amp;#x27;s a nearly complete reinvention of IPv4. Network planning looks quite different (especially when it comes to subnets) when you plan them with only IPv6 in mind.&lt;p&gt;Earlier this year, I was like:&lt;p&gt;&amp;quot;Wow, Comcast gives me a &amp;#x2F;60! That should be more address space than I could ever want or use.&amp;quot;&lt;p&gt;Now, I&amp;#x27;m thinking:&lt;p&gt;&amp;quot;A &amp;#x2F;60 is way too limited, I wish I had a &amp;#x2F;52 or a &amp;#x2F;56 instead -- why is Comcast so restrictive with giving out address space?&amp;quot;&lt;p&gt;I&amp;#x27;m currently reading the IPv6 for IPv4 Experts book to try to fill in more details:&lt;p&gt;&lt;a href=&quot;https:&amp;#x2F;&amp;#x2F;sites.google.com&amp;#x2F;site&amp;#x2F;yartikhiy&amp;#x2F;home&amp;#x2F;ipv6book&quot; rel=&quot;nofollow&quot;&gt;https:&amp;#x2F;&amp;#x2F;sites.google.com&amp;#x2F;site&amp;#x2F;yartikhiy&amp;#x2F;home&amp;#x2F;ipv6book&lt;/a&gt;&lt;p&gt;The more I read about it, the more I feel like I have a long way to go before I really get an intuitive understanding.</text></item></parent_chain><comment><author>whoknowswhat11</author><text>They should have had either a smaller scope &amp;#x2F; simpler extension to IPv4 with a better backwards compat story for IPv6 only clients (some have since shown up a bit).&lt;p&gt;Or really done the reinvent - there were some interesting ideas especially for folks with lots of link handoffs (ie cell phones driving down a road etc) - can&amp;#x27;t find the write-up quickly.</text></comment>