* Mikael Abrahamsson >> In my experience, long-lived sessions are unreliable when you're on the >> move anyway. Go into an elevator? Sessions drop. Subway heads into a >> tunnel? Sessions drop. > > I guess you and me have radically different experience of mobile phone > networks and how well they work.
Maybe. Welcome to Oslo. :-) >> I think this is a really poor excuse for not supporting IPv6 and >> IPv4v6 in any case. Unless I'm gravely misinformed on how 3GPP mobile >> networks work, there is absolutely no reason why you cannot on LTE >> simultaneously support IPv4, IPv6, and IPv4v6. That the LTE network >> additionally supports IPv6/IPv4v6 does not *in any way* prevent you >> from sticking to IPv4 in all cases and enjoying the exact same session >> mobility between 2G/3G/4G as you can if the LTE network only supports >> IPv4. > > IPv4v6 on LTE is a no-brainer, ...and that is *precisely* why it's so disappointing to see Telenor not supporting it from day one. >> Besides, the LTE network is being touted as a potential replacement >> for wired broadband. In that use case, the end user isn't likely to be >> mobile at all - presumably he'll have some CPE sitting in his window >> sill within LTE coverage 100% of the time. So no session mobility >> issues, and all the potential to be provisioned with IPv6 access. But no. > > Sure. But now you will probably have a 4G router with NAT44, with no > IPv6 support at all. I'd gladly take hints of devices with proper IPv4v6 > support in this area. I don't know of any 4G routers at all, but what I do know is that any 4G router with NAT44 and no IPv6 support would work just fine in an LTE network that also supported IPv6/IPv4v6. What I also do know is that if you do manage to get your hands on a dual-stack capable router (or any other mobile device really), its IPv6 capabilities will *not* work on an LTE network with no IPv6/IPv4v6 bearer support. >>> The important reason to upgrade is to get higher speeds, not to get >>> access to new L3 tech. >> >> Missed opportunity if you ask me. We could have had both. > > Yes we could, and we will. Just because someone isn't doing it *now* > doesn't mean it won't be done in the not so distant future. We could have had it available on LTE *now* and in a not so distant future on 2G/3G. Doing it incrementally like that would not break any current IPv4-only stuff, so I don't understand how it's problematic. -- Tore Anderson Redpill Linpro AS - http://www.redpill-linpro.com