Troubleshooting VirtualBox Bridged Adapter Not Getting IP Address in Kali Linux VM on WSL

Introduction

In this article, we will discuss how to troubleshoot a common issue where a Kali Linux VM running on Windows Subsystem for Linux (WSL) fails to obtain an IP address when using a VirtualBox bridged adapter.

Prerequisites

Before we dive into the troubleshooting steps, let's make sure we have the following prerequisites in place:

• A working installation of Kali Linux VM on VirtualBox.
• VirtualBox version 6.1.24 or later.
• Windows Subsystem for Linux (WSL) installed on Windows 10 or later.

Step 1: Check VirtualBox Network Settings

The first step is to check the VirtualBox network settings for the Kali Linux VM. Here's how:

1. Open VirtualBox and select the Kali Linux VM.
2. Click on "Settings" and then "Network" tab.
3. Select the "Bridged Adapter" option under "Attached to:" and make sure the correct network adapter is selected.
4. Check the "Enable Network Adapter" option.
5. Click "OK" to save the changes.

Step 2: Check Kali Linux Network Interface

Next, we need to check the network interfaces in the Kali Linux VM to see if the bridged adapter is detected and configured correctly.

1. Start the Kali Linux VM and log in as root.
2. Run the following command to list all network interfaces:
ifconfig

Look for the "eth0" interface, which should be the bridged adapter. If you see an IP address assigned to this interface, then the issue is likely not related to VirtualBox.

Step 3: Configure Kali Linux Network Settings

If the "eth0" interface does not have an IP address, we need to configure the network settings manually.

1. Edit the network interface configuration file for "eth0" using the following command:
sudo nano /etc/network/interfaces

Add the following lines at the end of the file:

auto eth0
 iface eth0 inet dhcp

Save and exit the file.

2. Restart the networking service using the following command:
sudo systemctl restart networking

Check the network interface status again using "ifconfig" command.

Step 4: Check Windows Firewall Settings

If the Kali Linux VM still does not obtain an IP address, we need to check the Windows Firewall settings.

1. Open Windows Defender Firewall with Advanced Security.
2. Go to "Inbound Rules" and search for the "VirtualBox Bridged Networking Port" rule.
3. Make sure the rule is enabled and set to "Allow the connection."

Step 5: Check VirtualBox Extension Pack

If none of the above steps worked, we need to check if the VirtualBox Extension Pack is installed correctly.

1. Download the latest VirtualBox Extension Pack from the VirtualBox website.
2. Install the Extension Pack using the VirtualBox GUI or the following command:
VBoxManage extpack install .vbox-extpack

In this article, we discussed the steps to troubleshoot a common issue where a Kali Linux VM running on WSL fails to obtain an IP address when using a VirtualBox bridged adapter. We covered checking VirtualBox network settings, Kali Linux network interfaces, Windows Firewall settings, and VirtualBox Extension Pack. By following these steps, you should be able to resolve the issue and get your Kali Linux VM up and running with a bridged adapter.

References

• VirtualBox Documentation: Bridged Networking
• Windows Defender Firewall with Advanced Security Overview