IPv6 address not stable, when querying via --wds-get-current-settings (from same CID)

[Bjørn Mork]

Martin Maurer <martin.maurer at mmeacs.de> writes:

> I am doing multiple --wds-get-current-settings (around 1 second
> between each request).
>
> IPv6 address changes on each request, all other entries remain stable.
>
> (4 numbers equal, the other 4 number change)
>
> Even when "/64" (half of the 128 bit number) shall it change all the time???

I've also noticed this.  It's always been like that on all my QMI
qmodems.

The network allocates a /64.  The rest is invented by the modem.  I
definitely agree that the modem firmware should have ensured that the
address it generates is stable.  But it doesn't.  And we just have to
live with that.

My best advice is to ignore the addresses generated by the modem and
create your own stable ones instead, using the assigned /64 prefix of
course.

Note that stable-privacy works fine on any IP interface, even the
non-ethernet ones, if you want something stable and automagic.

The gateway addresses are pointless and can be completely ignored.
There's no neighbour discovery. between host and modem.


Bjørn