Yup, the benefits don’t outweigh the costs.
I use IPv6 exclusively for my homelab. The pros:
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No more holepunching kludge with solutions like ZeroTier or Tailscale, just open a port and you are pretty much good to go.
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The CGNAT gateway of my ISP tends to be overloaded during the holiday seasons, so using IPv6 eliminates an unstability factor for my lab.
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You have a metric sh*t ton of addressing space. I have assigned my SSH server its own IPv6 address, my web server another, my Plex server yet another, … You get the idea. The nice thing here is that even if someone knows about the address to my SSH server, they can’t discover my other servers through port scanning, as was typical in IPv4 days.
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Also, because of the sheer size of the addressing space, people simply can’t scan your network.
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what costs are there beyond just leaving it on in supported configurations?
personally, i’d have pretty big benefits for my homelab if i could use my own ipv6 range for everything. having only a singe public IP is just very limiting.
sadly, my ISP does give out ipv6 for home networks, but i cannot connect to any of them from my mobile phone with the same carrier. so that’s fun. they talked about rolling out ipv6 on mobile networks years ago, but i guess it’ll take a few more…
For individuals. There are tons of benefits for everyone collectively, but as is often the case, there’s not enough incentive for any one person to bother until everybody else does.
I keep hearing this, and I KNOW it’s true at the enterprise level, but I’ve been running my home LAN IPv6 native for the last - 6+ years? Ever since I learned Comcat would vend it to you from their stock router.
Works great. No problems. Didn’t used to be that way, but these days most (more?) of the stack bugs have been shaken out.
I’m a network engineer and I run ipv6 natively in all of our datacenters. There are even a handful of end systems that have ipv6 native networking stacks with ipv4 sockets for our non-ipv6 compatible applications. IPv6 issues are basically self-inflicted at this point by companies that see their IT systems as cost centers, or by basilisk directors who’s knowledge stopped in the 90’s.
maybe start with an adjustable setup:
- rent a cheap vm, i got one for 1€/month (for the first year,cancel monthly) from ovh currently
- setup 3 openvpn instances to redirect all routes through the tunnel, one with ipv4 only, one with ipv6 only and one with both
- setup the client on your mobile phone and your laptop both with all three vpns to choose from
- have the option to choose now and try out ipv6, standalone or dualstack depending on what vpn you switch on
- use this setup to blame services that don’t support ipv6 yet or maybe are broken with dualstack 🤣
- rise from under-the-stone (disabling ipv6 only) to in-sunlight (to a well-above-industry-standart-level !!! “quick” new network technologies adopting “genious”) 🤣
- improve your openvpn setup from above to be reachable “by” ipv6 too if you haven’t done it from the beginning, done: reach the pro-level of the-late-adopter-noob-group
(if you want, ask for config snippets)
btw i prefer to wait for ipv8😁 before “demanding” ipv6 from services i use 🤣