Once the port forwarding is configured for specific ports, you use the host IP address to access the guest VM on configured ports. If you try to enable port forwarding on the guest VM, it will not work because the host machine itself is listening to port 22, and instead of forwarding the request to the guest VM the request would go right to the host machine itself. While configuring the port forwarding, you need to make sure the host machine is not using the same port that you configured on the Guest VM.įor example, Your host machine is a Linux box, and it is enabled with ssh access on port 22. The only way you can allow the communication to certain services on the Guest VM from the host machine or the local Network is to configure port forwarding on the VirtualBox. In the Virtualbox NAT interface, the host machine cannot talk to the guest VM’s, and from the local Network, the guest VM is invisible to local network hosts. In this blog, we will look at how to configure port forwarding in VirtualBox using the NAT interface.
We have covered multiple blogs on how you can configure port forwarding on pfSense and Opnsense firewall. Port forwarding is a network concept where we allow external users to access some of the network resources located internally.
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