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.
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.
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
Phones, as in 3gpp? If so, each phone alway gets a /64, there is no choice.
Here the cell companies are marketing their 4G LTE as an alternative to
DSL, Coax and fiber for internet access in your home with a 4G wifi router.
If they can not do prefix delegation it is no alternative!
I would love to test it, but it will be no surprise that none of the four
carriers enabled IPv6.
7934 Host Address Availability Recommendations. L. Colitti, V. Cerf, S.
Cheshire, D. Schinazi. July 2016. (Format: TXT=37124 bytes) (Also
BCP0204) (Status: BEST CURRENT PRACTICE) (DOI: 10.17487/RFC7934)
In short - even when you have only one device connecting, you probably need
more than one address.
Also, consider the common practice of tethering....
This document obsoletes RFC 3177, updating its recommendations in the
following ways:
1) It is no longer recommended that /128s be given out. While
there may be some cases where assigning only a single address
may be justified, a site, by definition, implies multiple
subnets and multiple devices.
Generally, when you look at an obsolete document such as