On 19/12/17 21:02, Carlos E. R. wrote:
On Tuesday, 2017-12-19 at 15:32 -0500, James Knott wrote:
...
These days, users are generally assigned an IPv6 prefix via DHCPv6-PD. Many (most?, all?) consumer level routers now support it. My cell phone only has IPv6 service. It has to use 464XLAT to convert to/from IPv4 for IPv4 only web sites or apps.
My cell phone gets a 10.*.*.* adress. My ISP feels no need to move to IPv6. The next step could be moving most home customers to another or same 10.*.*.* network, and use public address only for those that complain or pay for it.
Your ISP is going to get a shock. ISPs are moving to v6 because they have NO CHOICE. Businesses are going to go to your ISP and say "we *need* a routable internet address". What's your ISP going to say to them - "sorry we don't have any"? The business will just respond "bye-bye, thanks for all the fish". More and more internet services will move to v6, because they have no choice. I think it's a safe bet that a lot of Google servers, Amazon servers, Facebook servers are going v6-only because they can't get hold of v4 addresses to give them. And at some point, they are going to pull the plug on v4 because they find running dual-stack too much of a hassle. v4 internet-grade routers are already fiendishly complex things, because the routing tables have got so complicated that a lot of compute power needs to be thrown at them just to keep up. A v6-only router is MUCH MUCH simpler, because to some extent the route is encoded in the address (that's the way it used to be with v4, but address exhaustion drove greater and greater hacks into the system). Simply put, once the pain of maintaining a multiple-levels-of-NAT IPv4-only infrastructure reaches a certain point (typically, customers leaving because you have no routable public v4 addresses left), IPv6 becomes a necessity. Once you *are* running v6, then running dual-stack becomes a liability so your network will rapidly become all-v6 (for a suitable value of "rapidly", typically "as fast as we can replace our hardware, maybe 20 years" :-). All your v4 connectivity hassles are pushed to your interconnects with other ISPs, and the sooner you can communicate with them solely using v6 the better. In other words, your ISP may feel no need to move to v6. But the world is changing around it, and your ISP will soon be a dodo. Cheers, Wol -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org