If you are using a Bridged Adapter and the Realtek PCIe GbE Family Controller is not working, you may want to try the following steps:


Check if the network adapter is enabled in the virtual machine settings. Open VirtualBox and select the Kali Linux virtual machine. Then, click on Settings and navigate to the Network tab. Make sure the Enable Network Adapter option is checked.


Verify that the Realtek PCIe GbE Family Controller is installed and working properly on the host operating system. You can do this by going to the Device Manager and checking for any yellow exclamation marks next to the device.


If the device is not working properly, try updating the driver for the Realtek PCIe GbE Family Controller.


Make sure that the network adapter is configured to use DHCP or a static IP address within the same network as the host machine. If you want to use the IP address 192.168.0.0, make sure that it is not already in use by another device on the network.


If you are still having issues, you may want to try using a different network adapter type such as the Virtualbox Host-Only Ethernet Adapter.


Regarding the issue with the 10.0.2.0 IP address when using NAT network, this is a default configuration in VirtualBox and can be changed by configuring the network settings in the Kali Linux virtual machine. You can change the IP address to 192.168.0.0 or any other address that is available on your network.