Ricardo, I know from previous discussions on this list that Android phones are looking for DHCPD leases and not /128's or /64's. From what I remember this is due to the current requirement for multiple ipv6 subnets for various applications (vpns among others) to function correctly. As a result Google has disabled Android from receiving a DHCP lease as it wasn't long enough. if you look back about 6 months there is probably 100+ posts on the subject. All I really know is that I can not provide an ipv6 dhcp lease to an android phone and have it receive the address. james On Fri, Jul 22, 2016 at 1:54 AM, Ricardo Ferreira < ricardofbferreira@gmail.com> wrote:
Is there anyone here working in an ISP where IPv6 is deployed? We are starting to plan the roll-out IPv6 to mobile subscribers (phones) I am interesting in knowing the mask you use for the assignment; whether it is /64 or /128.
In RFC 3177, it says: 3. Address Delegation Recommendations
The IESG and the IAB recommend the allocations for the boundary between the public and the private topology to follow those general rules:
- /48 in the general case, except for very large subscribers. - /64 when it is known that one and only one subnet is needed by design. - /128 when it is absolutely known that one and only one device is connecting.
Basically a sole device will be connecting to the internet so I am wondering if this rule is follwed.
Cheers
-- Ricardo Ferreira