The default route is necessary for IPv6 connection, and it is not directly connected, the default configuration arranges for the traffic to go through the link-local address instead of its address on the global subnet i.e. directly connected routes.
The default route in IPv6 is like a traffic guide for our device. When there's no specific route for a destination, it points the traffic to a router or gateway, ensuring it goes beyond our local network to reach places outside. Unlike local routes that help devices talk within the same neighborhood, the default route is for going beyond, making sure our device can efficiently communicate both nearby and far away in IPv6 setups.
