Route via Ethernet bridge mode

Greetings.

I created a VM in Hyper-V with Ubuntu Server 18.04 with a bridge-mode network connection. I can ping the Host (My Notebook with Hyper-V) through IPv4 or IPv6 and vice versa without problems. The issue is that to dribble out of my network with only IPv4. Any IPv6 address or website that uses it, would return me: Destination unreachable: No route.

Any idea?

Very grateful.