Re: I-D Action: draft-mishra-6man-variable-slaac-01.txt

[JORDI PALET MARTINEZ <[e-mail]>]

I tried to find the information in my notes, but it was a casual testing, not in the scope of the customer project, I just took the opportunity to test it because I saw an LTE router and a network "combination" that was supporting it. Tested and worked. I recall there were many LTE routers (kind of CPEs with SIM support), most of them were from Chinese's vendors (some well-known brands such as Huawei).

 

El 8/11/20 23:44, "ipv6 en nombre de Alexandre Petrescu" <[e-mail] en nombre de [e-mail]> escribió:



    Le 08/11/2020 à 23:06, JORDI PALET MARTINEZ a écrit :
    [...]
    > Also, Alex insisted that chipset vendors don't support it. I don't
    > think this is the case, I recall having used DHCPv6-PD with an LTE
    > router long time ago.

    I asked it at that time, I will ask it again the same question of 
    whether this was on a smartphone or on a CPE, with which operator, which 
    LTE modem, was the Server in the cellular network, and other details.

    (if my assumptions about your trial is correct) The fact that a CPE 
    router has a LTE interface and that the Server is outside the network 
    operator it does not mean DHCPv6-PD works on smartphones.

    > I'm sure we have in the list folks from Apple, Broadcom, Qualcomm,
    > maybe ARM, or somebody in the list can reach them, to ensure if this
    > is a chipset problem, which I don't think is the case.

    It is the case.

    > It looks to me it is more a problem of the rest of the mobile network
    > equipment, just not implementing it by default.

    No, it is a problem on the modem in the smartphone, not in the network.

    Anyways, we will not solve it here.

    One has to admit that in some environments some things are simply not 
    there and wont come.

    Alex

    > 
    > 
    > El 8/11/20 22:44, "ipv6 en nombre de Brian E Carpenter"
    > <[e-mail] en nombre de [e-mail]>
    > escribió:
    > 
    > On 09-Nov-20 09:14, JORDI PALET MARTINEZ wrote:
    >> This is wrong. As one of the authors of that document, I can ensure
    >> that it covers both aspects, size and persistence and it also
    >> covers mobile. See:
    >> 
    >> 
    >> 
    >> 4.2.4. Considerations for Cellular Operators
    >> 
    >> There is a clear exception to the rule described above when
    >> assigning prefixes in a cellular network. In this case, a /64 will
    >> need to be provided for each PDP context for cellular phones,
    >> whereas for LTE modems/routers, i.e. in the case of broadband by
    >> means of cellular access, it will still be necessary to choose a
    >> /48 or /56 in accordance with the aforementioned considerations.
    >> 
    > 
    > Can you be more explicit? Are you saying that this problem is in fact
    > solved for 5G modems? If so, and 4G is soon to be legacy, why are we
    > even having this discussion?
    > 
    > Regards Brian
    > 
    > 
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