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 support@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