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> ... there aren't actually that many hurdles left. The biggest one is IPV6. Once that is pervasive, then you have an easy way to get end to end connectivity wi

> ... there aren't actually that many hurdles left. The biggest one is IPV6. Once that is pervasive, then you have an easy way to get end to end connectivity without having use a central server to carry the content... I'm not really a networking pro. Could you ELI5 why IPv6 is such a magic bullet for VOIP?

auganov 9y ago
IPv6 means every device can have a globally routable, unique address. Hence bypassing the need for relay or hole punching servers. On a side note, I don't believe it to be a major problem in this context though.
- CodeWriter23 9y ago
  I'm pretty sure I'll still have a firewall between my IPv6 devices and the internet.
  - lallysingh 9y ago
    Sure, but you won't need to NAT them.
  - auganov 9y ago
    Right, IPv6 gives you no guarantee that you'll be reachable. What default firewalling should look like is still an ongoing discussion.
- IshKebab 9y ago
  Yeah but what advantage does it have over hole-punching? You have a direct connection in both cases.
  - VLM 9y ago
    A slight correction that hole punching only works maybe 95% of the time, leading to endless non-technical articles commenting about how none of this works never. 95% is the same as 0% in the popular press. Almost all voip problems are lack of bandwidth and wifi lack of reliability. Enough BW and a wired connection and its as perfect as legacy copper wire telephone service. The bean counters are of the opinion that 95% reliability is spending "enough" and the popular science article writer are of the opinion 95% reliability is the same as 0% so this will not change until the economics and infrastructure of broadband connections dramatically change. The problem has nothing to do with app developers or library authors, and has everything to do with the network engineering team in IT fighting with the bean counters, on several levels.
    - mikekchar 9y ago
      Yes, this is exactly right. With IPV6 you can give explicit instructions to open up a port because you know what port to open up. The frustrating part is that none of this should be a problem. It's just that lots and lots of routers don't follow the specs properly. Here it is 2017 and you still can't reliably punch a hole in a firewall.
      - tropo 9y ago
        That is kind of the point of a firewall, no? If some random video conferencing app can punch a hole, get a refund.
deleted 9y ago
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auganov 9y ago

IPv6 means every device can have a globally routable, unique address. Hence bypassing the need for relay or hole punching servers. On a side note, I don't believe it to be a major problem in this context though.

CodeWriter23 9y ago
I'm pretty sure I'll still have a firewall between my IPv6 devices and the internet.
- lallysingh 9y ago
  Sure, but you won't need to NAT them.
- auganov 9y ago
  Right, IPv6 gives you no guarantee that you'll be reachable. What default firewalling should look like is still an ongoing discussion.
IshKebab 9y ago
Yeah but what advantage does it have over hole-punching? You have a direct connection in both cases.
- VLM 9y ago
  A slight correction that hole punching only works maybe 95% of the time, leading to endless non-technical articles commenting about how none of this works never. 95% is the same as 0% in the popular press. Almost all voip problems are lack of bandwidth and wifi lack of reliability. Enough BW and a wired connection and its as perfect as legacy copper wire telephone service. The bean counters are of the opinion that 95% reliability is spending "enough" and the popular science article writer are of the opinion 95% reliability is the same as 0% so this will not change until the economics and infrastructure of broadband connections dramatically change. The problem has nothing to do with app developers or library authors, and has everything to do with the network engineering team in IT fighting with the bean counters, on several levels.
  - mikekchar 9y ago
    Yes, this is exactly right. With IPV6 you can give explicit instructions to open up a port because you know what port to open up. The frustrating part is that none of this should be a problem. It's just that lots and lots of routers don't follow the specs properly. Here it is 2017 and you still can't reliably punch a hole in a firewall.
    - tropo 9y ago
      That is kind of the point of a firewall, no? If some random video conferencing app can punch a hole, get a refund.

deleted 9y ago

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