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Re: [v6ops] RFC6459 "IPv6 in 3GPP" - the IID in the LL address

Erik Kline <ek@google.com> Mon, 10 July 2017 15:24 UTC

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From: Erik Kline <ek@google.com>
Date: Tue, 11 Jul 2017 00:23:37 +0900
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To: Alexandre Petrescu <alexandre.petrescu@gmail.com>
Cc: mohamed.boucadair@orange.com, "v6ops@ietf.org" <v6ops@ietf.org>
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Subject: Re: [v6ops] RFC6459 "IPv6 in 3GPP" - the IID in the LL address
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On 10 July 2017 at 22:50, Alexandre Petrescu <alexandre.petrescu@gmail.com>
wrote:

> Med,
>
> I think this is an issue _if_ the operator filters all incoming messages
> generated by the UE whose LL includes an IID different than what the
> network may have suggested to it.
>
> If there is no such filter, then no need to debate specs.


There is definitely various filtering going on.  In general you cannot, for
example, ping the default router on the mobile link (neither in v4 nor
v6).  Lots of other link-local broadcast/multicast stuff is dropped to save
radio.

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