4 ms·

So they don't need a server, but they need a server at the same time (: One could abuse BitTorrent's existing DHT infrastructure (:

imtringued 3y ago
What we need is widespread IPv6 support. Portforwarding isn't the problem. The terrible UX and the existence of CGNAT (carrier grade NAT) is.
- Zetaphor 3y ago
  As someone who only understands the benefit of IPv6 to be the much larger address pool, can you elaborate on how it would make this situation simpler?
  - chainingsolid 3y ago
    https://tailscale.com/blog/how-nat-traversal-works/ https://tailscale.com/blog/how-nat-traversal-works/ This was posted to HN recently and has the answer you asked for better written up the I can write here.
  - amarshall 3y ago
    The problem is NAT as it makes it impossible to directly address, and NAT doesn’t exist in IPv6 (because NAT is primarily needed to workaround limited public addresses).
- grumpy_coder 3y ago
  IPv6 support is pretty 'widespread' at this point. >50% last I did a quick test You unfortunately need ubiquitus IPv6 support to actually rely on IPv6, which isn't going to happen anytime soon. So you really need to consider the benefits of dual stack v4 and v6 simultaneously within the same group of players. Might be useful, but it adds a whole heap of complexity.
- p1mrx 3y ago
  CGNAT is not a problem. It is a necessity because there are more humans than IPv4 addresses. The problem is deploying CGNAT without also providing IPv6 as an alternative.
- jesprenj 3y ago
  While I agree with you, having a globaly routable address doesn't help you if you can't accept incoming tcp/udp connections. My ISP blocks such connections on LTE mobile network. Maybe so you don't pay a lot of money for traffic if people DoS you? It doesn't make sense, since ICMP ping packets are allowed. Well, it's either my ISP or the android phone I have. Does android have any firewalls enabled by default?

imtringued 3y ago

What we need is widespread IPv6 support. Portforwarding isn't the problem. The terrible UX and the existence of CGNAT (carrier grade NAT) is.

Zetaphor 3y ago
As someone who only understands the benefit of IPv6 to be the much larger address pool, can you elaborate on how it would make this situation simpler?
- chainingsolid 3y ago
  https://tailscale.com/blog/how-nat-traversal-works/ https://tailscale.com/blog/how-nat-traversal-works/ This was posted to HN recently and has the answer you asked for better written up the I can write here.
- amarshall 3y ago
  The problem is NAT as it makes it impossible to directly address, and NAT doesn’t exist in IPv6 (because NAT is primarily needed to workaround limited public addresses).
grumpy_coder 3y ago
IPv6 support is pretty 'widespread' at this point. >50% last I did a quick test You unfortunately need ubiquitus IPv6 support to actually rely on IPv6, which isn't going to happen anytime soon. So you really need to consider the benefits of dual stack v4 and v6 simultaneously within the same group of players. Might be useful, but it adds a whole heap of complexity.
p1mrx 3y ago
CGNAT is not a problem. It is a necessity because there are more humans than IPv4 addresses. The problem is deploying CGNAT without also providing IPv6 as an alternative.
jesprenj 3y ago
While I agree with you, having a globaly routable address doesn't help you if you can't accept incoming tcp/udp connections. My ISP blocks such connections on LTE mobile network. Maybe so you don't pay a lot of money for traffic if people DoS you? It doesn't make sense, since ICMP ping packets are allowed. Well, it's either my ISP or the android phone I have. Does android have any firewalls enabled by default?