Today in our newest take on “older technology is better”: why NAT rules!

  • dan@upvote.au
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    5 months ago

    My ISP does this right (provides a /56 for routing), but unfortunately both are dynamic and change periodically. Every time I disconnect and reconnect from the internet, I get a different prefix.

    I ended up needing to have ULAs for devices where I need to know the IPv6 address on my network (e.g. my internal DNS servers).

    • Thiakil@aussie.zone
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      4 months ago

      Indeed, that’s correct ula usage, but shouldn’t need nat rewriting. The global prefixes just need to be advertised by RA packets

      • dan@upvote.au
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        4 months ago

        Yeah I’m not using NAT, sorry for the confusion.

        My router doesn’t support RAs for a ULA range though, so I’m running radvd on my home server.

      • Thiakil@aussie.zone
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        4 months ago

        I use openwrt on my home network which uses dnsmasq for dhcp. It can give a static suffix which just works with the global prefix on the interface and the site local / ula prefix it uses

        • dan@upvote.au
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          4 months ago

          Note that Android doesn’t support DHCPv6, just in case you have Android devices and ever have to debug IPv6 on them.