[PATCH 0/3] Enabling IPv6 on Qualcomm MDM9x00 chipsets

[Bjørn Mork]

Bjørn Mork <bjorn at mork.no> writes:

> Given this, I wonder if maybe IPV4V6 should always be configured as the
> default PDN type in modems? I'm going to test whether that works for
> both my SIM types.  Why didn't I think of that before?

Confirmed.  After setting the PDN type of the default profile to IPV4V6,
I am able to successfully register in the network using either of my SIM
types.  Note that neither subscription allow *any* IPV4V6 APN to my
knowledge.  This default type is just used as a signal to the network
that the modem can support either protocol, allowing the default bearer
to be either IPv4 or IPv6.

So I guess it's a good idea to always configure a IPV4V6 default
profile, regardless of the actual requested APN PDN type.  This ensures
maximum interoperability with the network for modems supporting IPv6, by
not placing any restrictions on the default bearer.


Bjørn