Hello community!
We have an ASA 5506X (ASA Version 9.16(4) and ASDM 7.20(1)) in use with SecureClient 5.1.0.136 (PC) and 5.0.05206 (IOS).
Only the routes to our VoIP server (IPv4) should go through the tunnel. Everything else should still happen locally. No IPv6 is configured on the ASA.
The whole thing works perfectly with PCs, but the behavior is different with mobile (IOS) devices.
Here all IP v6 data traffic is blocked by the client. This means that users can no longer access the Internet or update emails, etc. with their cell phones.
I have no idea where I would have to adjust the configuration.
This is a screenshot from the PC. Don't care about IPv6, just tunnel the both server routes.
And now the same on IOS. All IPv6-Traffic blocked - WHY?!
IOS
The Phone uses IPv6 for Internet-Connection.