• starmanEnglish
    172·
    6 months ago

    How do you guys remember IPv6 addresses?

    • bfg9k@lemmy.world
      321·
      6 months ago

      You shouldn’t need to remember IP addresses, they invented DNS to solve that problem lol

      Even so, the addresses can be even easier to remember because we get a-f as well as digits, my unique local subnet is fd13:dead:beef:1::/60 cause I like burgers haha

      • DefederateLemmyMl@feddit.nlEnglish
        221·
        6 months ago

        You do need to know it when you’re working with subnets and routing tables.

        Unless you have anything but a flat network structure with everything in one subnet, working with IPV6 is a giant PITA.

        • bfg9k@lemmy.world
          4·
          6 months ago

          I’m curious how you normally deploy since there’s a couple of ways to do it, I’ve mostly dealt with requesting a number of prefixes from the upstream router and delegating to each subnet/VLAN as appropriate, and each time I’ve done it it’s been a breeze

          Even if you need static addressing you can just set it manually and DAD will handle it if it ever conflicts with a DHCP address, at least in my experience

          • DefederateLemmyMl@feddit.nlEnglish
            5·
            6 months ago

            It’s when you have to set static routes and such.

            For example I have a couple of locations tied together with a Wireguard site-to-site VPN, each with several subnets. I had to write wg config files and set static routes with hardcoded subnets and IP addresses. Writing the wg config files and getting it working was already a bit daunting with IPv4, because I was also wrapping my head around wireguard concepts at the same time. It would have been so much worse to debug with IPv6 unreadable subnet names.

            Network ACLs and firewall rules are another thing where you have to work with raw IPv6 addresses. For example: let’s say you have a Samba share or proxy server that you only want to be accessible from one specific subnet, you have to use IPv6 addresses. You can’t solve that with DNS names.

            Anyway my point is: the idea that you can simply avoid IPv6’s complexity by using DNS names is just wrong.

              • DefederateLemmyMl@feddit.nl
                2·
                6 months ago

                You don’t even have to NAT the fuck out of your network. NAT is usually only needed in one place: where your internal network meets the outside world, and it provides a clean separation between the two as well, which I like.

                For most internal networks there really are no advantages to moving to IPv6 other than bragging rights.

                The more I think about it, the more I find IPv6 a huge overly complicated mistake. For the issue they wanted to solve, worldwide public IP shortage, they could have just added an octet to IPv4 to multiply the number of available addresses with 256 and called it a day. Not every square cm of the planet needs a public IP.

        • smileyhead@discuss.tchncs.de
          2·
          6 months ago

          You can subnet it with the exact same rulea as IPv4, nothing is chaning there.

          Replace, for example, 192.168. with fd01::, with digits after this being divided however you like. You might step upon a too basic router that has it’s own way to assign addresses with no way to change it, but that would not be IPv6 fault.

      • starmanEnglish
        5·
        6 months ago

        Is it possible to do that for router/access point running OpenWRT?

        I have to try it when I’ll be back home.

        Edit: turns out that all devices connected to router are accessible from <hostname>.lan. I don’t remember setting it up, tho.

        • starmanEnglish
          1·
          6 months ago

          Wow, that’s so cool. Thank you, I’ll implement it in my LAN.

    • smileyhead@discuss.tchncs.de
      3·
      6 months ago

      Since I bought a domain name I do not remember IP addresses. Just like I don’t remember password since I installed password manager or not remember phone numbers since I have a smartphone.

      It’s only annoying when being on someone’s else computer without my clipboard sharing setup and need to copy an address by hand. But that’s an issue when setting something up. I would take this inconvenience while setting up than all everyday inconveniences that IPv4 created in last years.

      • JackbyDevEnglish
        3·
        6 months ago

        CAFE, BABE, BEEF, DEAD, and of course, 1337.