After updating to the latest update 161 I activated both options under Anomaly detections based on Autonomous Systems information.
Right after that access to Fritzbox GUI wasn’t possible any more resulting in a proxy error
The proxy server is refusing connections An error occurred during a connection to 192.168.178.1. Check the proxy settings to make sure that they are correct. Contact your network administrator to make sure the proxy server is working.
Ipfire is located behind the Fritzbox and is configured as an exposed host. Up to activation of the new feature I could acccess Fritzbox’s GUI via 192.168.178.1. Ipfire is located at 192.168.20.1
After a very short time of fiddling it became obvious that activating the second option “Deny access to destinations hosted on selectively announced networks:” leads to this problem. I therefore unchecked the option and the Fritzbox is accessible as before.
Is the behaviour expected? If so, how do I access the Fritzbox without unchecking the second option.