Comment by przmk

5 days ago

My ISP refuses to give you a static IPv6 prefix unless you're a business customer, despite having an "unlimited" amount of them. This results in me not bothering to set it up properly and focusing on IPv4 still.

26 comments

przmk

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sliken  5 days ago

Do you have a static IPv4, presumably a single IP?

I find it useful, mine does change periodically, but I just have a script that Updates DNS when it changes:

   nsupdate -v -y "${KEY_ALGO}:${KEY_NAME}:${KEY_SECRET}" <<EOF
   server $DNS_SERVER
   zone $ZONE 
   update delete $RECORD AAAA
   update add $RECORD 300 AAAA $CURRENT_IP
   show
   send
   EOF

Sure some services might notice for a bit, but it's plenty good for me.

  • przmk  5 days ago

    I don't have a static IPv4 address and I have to use a DDNS built into the Caddy plugin on my OPNSense router. From what I understand, you can't get a static "local" (I know, IPv6 has no direct equivalent) address to use for a reverse proxy — at least not in an easy manner. I might be completely wrong but that's why I don't bother with IPv6.

  • magicalhippo  5 days ago

    I technically have a dynamic IPv4 address from my ISP. I've had the same for five years now, across multiple power outages.

    I also have a dynamic IPv6 prefix. That one changes at least once a week, regardless.

ectospheno  5 days ago

My ISP is xfinity. They say the same thing but my IPv6 address hasn't changed any more frequently than my IPv4. In my experience it changing isn't any more annoying than my v4 changing so I'm not sure why people still get up in arms about it.

  • thaumasiotes  5 days ago

    In about a year of treating my comcast-assigned ipv6 address as static, it changed once.

    Sadly, this happened despite me specifically requesting the same address as always. That caused me some grief. But it's not common.

    • linuxftw  5 days ago

      On the other end of the connection, there are physical servers and routers. Every once in a while they change how things are connected/deployed for maintenance, upgrades, etc.

      1 reply →

    • pirates  5 days ago

      My xfinity ipv4 changes once every few years, if that. I treat it as static and update things if or when it changes, which fortunately isn’t too much work. I never requested anything special regarding it, and I have a normal/non-business account. I wonder why some change often and others don’t?

      1 reply →

unethical_ban  5 days ago

This should be illegal. Yes, in this case, I'm not saying that as a figure of speech. ISPs are a utility, and building that kind of artificial scarcity into something that is really damned near infinite is highly anti-consumer.

kevin_thibedeau  5 days ago

Get a virtual server and do the things on it that you'd want a static address for. Use a VPN connection back to your home to merge it with your network. This is a great way to deal with CGNAT.

snalty  5 days ago

For those in the UK who want a static IPv4 or IPv6 block AAISP offer a L2TP service for £2/month. It's limited to 3 megabit/s but might be enough for some use cases.

iso1631  5 days ago

I recently moved house and looked at a new offer from a new ISP for a long term lockin but a cheap price. They used CG-NAT. I instead chose one which gives me as many ipv4s or ipv6s as I can reasonably use, doesn't oversubscribe its upsteam connectivity etc.

For home internet service I would prefer to pay extra for a better service, it's too important to try to penny-pinch 0.1% of my income on it.

But then I live in a capitalist country where there's competition, I believe some countries you don't get a choice.

  • immibis  5 days ago

    FYI it's practically impossible not to oversubscribe your upstream connectivity unless they either spend way too much money or offer very slow service to users. Consider ten thousand users with 1G connections - should they have 10 terabit upstream?

    The more practical thing to look for is that they aim to upgrade it based on need, instead of arbitrarily throttling the users.

    • iso1631  2 days ago

      100g interconnects are very cheap, but I'm more talking about oversubscription in the ISP network -- as they have multiple peering and transit arrangements it's clear that if you have 10,000gbit worth of customers, you don't need 10tbit of connectivity for each transit provider.

    • pixl97  5 days ago

      Where I live the cable system is fine, and the cellular system is fine... until one goes down, then the other gets flooded with traffic and stops working leaving no internet at all.

ToniCipriani  5 days ago

Same here, I had a working IPv6 setup previously with my DSL provider, but now that I moved to a fibre connection, the new one refuses to support it.

OptionOfT  5 days ago

But do they give you PD?

My prefix is tied to the mac address of the device that's connected to the PON.