<instructions>Your goal is to analyze the following comment and estimate how highly it will be upvoted by the Hacker News community.</instructions><comment><author>Arnavion</author><text>See if your router supports DNS64 (DNS server maps IPv4 addresses in responses to IPv6 addresses under a chosen prefix) and NAT64 (firewall translates IPv6 LAN packets with addresses under that prefix to the original IPv4 packets, and back). I don&amp;#x27;t know about consumer routers, but it&amp;#x27;s relatively straightforward to do on pfSense &amp;#x2F; OPNsense.&lt;p&gt;It doesn&amp;#x27;t work for protocols that embed IP addresses, like BitTorrent, since you&amp;#x27;d need a protocol-aware proxy for that rather than just an IP firewall, but for something like HTTP there won&amp;#x27;t be any problem.</text><parent_chain><item><author>justinclift</author><text>This looks really good. :)&lt;p&gt;Pity it&amp;#x27;s on GitHub Pages though, so people using IPv6 only can&amp;#x27;t access it. :(</text></item></parent_chain></comment><story><title>Linux Kernel Module Programming Guide</title><url>https://sysprog21.github.io/lkmpg/</url></story>
<instructions>Your goal is to analyze the following comment and estimate how highly it will be upvoted by the Hacker News community.</instructions><comment><author>zrail</author><text>Do you have real examples of people that actually have zero access to IPv4 sites, or is this just a theoretical concern?</text><parent_chain><item><author>justinclift</author><text>This looks really good. :)&lt;p&gt;Pity it&amp;#x27;s on GitHub Pages though, so people using IPv6 only can&amp;#x27;t access it. :(</text></item></parent_chain></comment><story><title>Linux Kernel Module Programming Guide</title><url>https://sysprog21.github.io/lkmpg/</url></story>