I got one comment to our draft. Section 5.4 discusses some known neighbor 
discovery issues out there. I forgot to add one that I believe belongs here or 
then in Section 5.2; which one I am not sure yet. In Section 5.2 it is said 
that the GGSN/PGW provides an unique IID to the UE (i.e. guaranteed not to 
collide with GGSN/PGW's one) for the link-local address configuration. However, 
numerous modem drivers today fail (or don't even care) to deliver the received 
IID to the host OS stack and instead the driver comes up with its own (usually 
some imaginary MAC address based one..). Therefore, there is theoretical but 
very unlikely chance for link-local address collision between the UE and the 
gateway on the 3GPP link. Since the UE may or may not perform DAD this can be 
unnoticed during the address configuration phase.

- Jouni



2011/8/2, The IESG <[email protected]>:
> 
> The IESG has received a request from the IPv6 Operations WG (v6ops) to
> consider the following document:
> - 'IPv6 in 3GPP Evolved Packet System'
>  <draft-ietf-v6ops-3gpp-eps-03.txt> as an Informational RFC
> 
> The IESG plans to make a decision in the next few weeks, and solicits
> final comments on this action. Please send substantive comments to the
> [email protected] mailing lists by 2011-08-15. Exceptionally, comments may be
> sent to [email protected] instead. In either case, please retain the
> beginning of the Subject line to allow automated sorting.
> 
> Abstract
> 
> 
>   Use of data services in smart phones and broadband services via HSPA
>   and HSPA+, in particular Internet services, has increased rapidly and
>   operators that have deployed networks based on 3GPP network
>   architectures are facing IPv4 address shortages at the Internet
>   registries and are feeling a pressure to migrate to IPv6.  This
>   document describes the support for IPv6 in 3GPP network
>   architectures.
> 
> 
> 
> 
> The file can be obtained via
> http://datatracker.ietf.org/doc/draft-ietf-v6ops-3gpp-eps/
> 
> IESG discussion can be tracked via
> http://datatracker.ietf.org/doc/draft-ietf-v6ops-3gpp-eps/
> 
> 
> No IPR declarations have been submitted directly on this I-D.
> 
> 
> _______________________________________________
> v6ops mailing list
> [email protected]
> https://www.ietf.org/mailman/listinfo/v6ops
> 

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