On Fri, Dec 9, 2011 at 2:58 AM, Lorenzo Colitti <lore...@google.com> wrote:
> On Thu, Dec 8, 2011 at 10:42, Tao Sun <hisun...@gmail.com> wrote: > >> [Tao] Using radius with AAA is only used for few enterprise users >>>> in some operator's network. >>>> >>> >>> So what entity in the network decides what prefix to assign to a given >>> user when he sets up, say, the Internet PDN? >>> >> >> [Tao] The gateway (e.g., GGSN) is configured with an address pool and >> asign IP address based on it. >> > > But that gateway is talking to some AAA server (e.g., RADIUS or something > else), right? I can't imagine that all the users on a particular GGSN are > locally configured on the box. > The user's information is not locally configured on the box. The gateway is configured with a block of IP address pool. It assigns IP addresses dynamically to users who attach to it. > > >> The RADIUS attribute for it already exists, it's called >>> Framed-IPv6-Route: http://tools.ietf.org/html/rfc3162#section-2.5 . >>> >>> The handsets can easily support it if they are based on operating >>> systems that support it. I know Linux does, so Android could use it. Don't >>> know about OS X / iPhone, but on the other hand the iPhone doesn't support >>> IPv6 on the mobile interface yet. >>> >> >> [Tao] I know only the WiFi mode support IPv6 for Android previously. I >> also knew from my colleague that the Android 3.2.2 introduced support of >> dual stack IPv4/v6 on LTE mode in Oct. this year. Could you help to >> confirm whether Anroid already support RIO? >> > > It's supported by the Linux kernel but it's currently disabled in the > Android kernel for no particular reason that I know of. It would be much > easier to enable it than to package a DHCPv6 client. >
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