Re: [v6ops] Apple and IPv6, a few clarifications - 64share

[Alexandru Petrescu <[e-mail]>]

Le 01/07/2015 11:35, Vízdal Aleš a écrit :
>> -----Original Message----- From: v6ops
>> [mailto:[e-mail]] On Behalf Of Alexandru Petrescu
>> Sent: Monday, June 29, 2015 3:16 PM To:
>> [e-mail]; [e-mail] Subject: Re: [v6ops]
>> Apple and IPv6, a few clarifications - 64share
>>
>>
>>
>> Le 29/06/2015 14:51, [e-mail] a écrit :
>
>> The modem and chipsets on LTE that I have tried do forward DHCPv6
>> requests.  For example it transmits the DHCPv6 Request and then
>> receives an DHCPv6 Ack from the cellular network containing an IPv6
>> address.  But if I make a DHCPv6 Prefix Delegation request then
>> that is not answered.
>
> The current 3GPP specs do not contain DHCPv6 based IPv6 prefix
> allocation, so I would be surprised by an LTE network doing so.

'Prefix Allocation' or Prefix Delegation?   Because Section 5.3.1.2.6.
or this 3GPP/ETSI spec does tell DHCPv6 Prefix Delegation, between the
LTE network and the UE.

http://www.etsi.org/deliver/etsi_ts/123400_123499/123401/10.03.00_60/ts_123401v100300p.pdf

http://www.etsi.org/deliver/etsi_ts/123400_123499/123401/12.06.00_60/ts_123401v120600p.pdf

(in this way one can see the history of it).

> The DHCPv6 server could be run by the dongle and providing that RA
> provided prefix via DHCPv6 to the host.

If that is a question, the answer is no, the DHCPv6 server is not 
running by the dongle, because the IP address provided by DHCP is 
different than the IP address formed from the RA: both the prefix and 
the IID.

The DNS server provided by RA is different than the DNS server provided 
by DHCP.  The DNS server provided by DHCP works fine whereas the one 
provided by RA does not work.  (So I end up with a situation where I 
must use both DHCP and RA, which is a burden)

After having queried the operator in question I continue to think 
DHCPv6-PD is not provided by the network, although DHCPv6 for addresses 
_is_.

Alex

>
>> I guess that hardware which blocks DHCPv6-PD also blocks DHCPv6.
>> Otherwise it would be an intentional blocking of DHCPv6-PD...
>>
>> Alex
>
> Ales
>
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>