Hi, After more than 3 years of a quite stable configuration, I did some tests and configuration changes which crash all my network configuration. So a few weeks ago, I asked for a new subnet in order to put an IPv6 labo in place, with a few DMZ and different IPv6 configuration methods without any impact on my day to day network. As an answer, I get this message : " Please elaborate about the location of this endpoint" Moreover, both my production and dev tunnel have been marked as administratively down. I open a ticket in order to acivate my tunnels again, but the state of the ticket has been marked as 'user' without any more information. I don't know what to do to go ahead with this issue. But the most important for me, I don't have any IPv6 connection anymore. Thank you by advance for helping me, and telling me what is expecting from me. Xavier.