SOLVED:

many thanks to all @ swisscom who helped me

issue solved.


for  propperness:

it was CG NAT, not ds-lite

(I had a week ago an issue with UPC and ds-lite; so was my fault)

now back to dual stack and all works :)

have a nice weekend,
cheers
stephan



2017-10-27 9:00 GMT+02:00 WolfSec-Support <supp...@wolfsec.ch>:

> Hello,
>
>
> could be someone from swisscom so kind and contact me offlist via email
> please.
>
> our customer has a swisscom dsl connection and last week they changed
> these to v6.
> he already tried 3 times via swisscom helpdesk without success.
> the first level seems to have no idea about ds lite and v6... ;-/
>
> we want to go back to v4 native.
> in customer center we have deactivated v6 - but it is still online via v6
> and ds-lite
>
> we did all what was explained:
> - switchoff modem for an hour
> - reboot 3 times router etc
>
> effectively now the vpn is for sure not working via ds lite and carrier
> grade NAT....
>
> thanks in advance
>
> Stephan
>
>
> Besten Dank.
>
> Freundliche Grüsse,
> WolfSec-Support
>
> WolfSec
> Postanschrift:
> Swiss Post Box: 104213
> Zürcherstrasse 161
> CH-8010 Zürich
>
> http://www.wolfsec.ch
>
>
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