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>that will allow every person to have an IP address for every device they have and retain that perpetually. Wait... what? has someone implemented IP address p

by lsc 13y ago

>that will allow every person to have an IP address for every device they have and retain that perpetually. Wait... what? has someone implemented IP address portability while I wasn't looking? I mean, there was lots of talk a few years back, but my understanding is that the facts on the ground are such that when you switch ISPs, well, you are switching your IPv6 address (unless you are large enough to speak BGP)

pbhjpbhj 13y ago
OK, yes, "retain continuity of addressability for every device" then - you'll need something at your end to push a signed notification out indicating your IP address change but there's no reason that can't be seamless like texting your contacts a new phone number but without any interaction needed.
- lsc 13y ago
  >OK, yes, "retain continuity of addressability for every device" then - you'll need something at your end to push a signed notification out indicating your IP address change but there's no reason that can't be seamless like texting your contacts a new phone number but without any interaction needed. so, you mean like dynamic updates to DNS? tsig-signed nsupdate? It's old technology, and would do what you describe (well, after dns caches empty. Yes, you get to set the TTL, but even with a short ttl, I wouldn't count on a dns update percolating down in less than two hours.) Of course, there are problems with the end-to-end model you describe, where every device is publicly accessible. (Don't get me wrong, there are strong advantages to the model, too... but there are problems) I think I'd feel a little weird, a little naked without a statefull firewall in front of my consumer devices.
  - pbhjpbhj 13y ago
    >percolating down in less than two hours // How often are you planning on changing your domestic ISP?
    - lsc 13y ago
      If changing ISPs is your only use case, it works fine. But if you expect to keep the same name when you walk down to the coffee shop? Yeah, you're firing up the VPN. I mean, nsupdate is great; I use it all the time, but it doesn't really solve the problem that the 'IP portability' folks were going or.

by lsc 13y ago

pbhjpbhj 13y ago

OK, yes, "retain continuity of addressability for every device" then - you'll need something at your end to push a signed notification out indicating your IP address change but there's no reason that can't be seamless like texting your contacts a new phone number but without any interaction needed.

lsc 13y ago
>OK, yes, "retain continuity of addressability for every device" then - you'll need something at your end to push a signed notification out indicating your IP address change but there's no reason that can't be seamless like texting your contacts a new phone number but without any interaction needed. so, you mean like dynamic updates to DNS? tsig-signed nsupdate? It's old technology, and would do what you describe (well, after dns caches empty. Yes, you get to set the TTL, but even with a short ttl, I wouldn't count on a dns update percolating down in less than two hours.) Of course, there are problems with the end-to-end model you describe, where every device is publicly accessible. (Don't get me wrong, there are strong advantages to the model, too... but there are problems) I think I'd feel a little weird, a little naked without a statefull firewall in front of my consumer devices.
- pbhjpbhj 13y ago
  >percolating down in less than two hours // How often are you planning on changing your domestic ISP?
  - lsc 13y ago
    If changing ISPs is your only use case, it works fine. But if you expect to keep the same name when you walk down to the coffee shop? Yeah, you're firing up the VPN. I mean, nsupdate is great; I use it all the time, but it doesn't really solve the problem that the 'IP portability' folks were going or.