RDP to Host on Local home network whilst Client is connected to VPN, but also on Local home network

3 min read 28-10-2024

the ifix

RDP to Host on Local home network whilst Client is connected to VPN, but also on Local home network

In today's digital landscape, accessing computers remotely has become a necessity for many users. A common scenario arises when you want to establish a Remote Desktop Protocol (RDP) connection to a host on your local home network while your client machine is connected to a Virtual Private Network (VPN) that is also part of that same local network.

Understanding the Problem

Imagine you are at home and want to remotely access your desktop computer (host) using RDP from your laptop (client). However, the laptop is connected to a VPN that keeps you within the same local home network. The challenge is that VPNs often reroute all traffic through their own servers, potentially complicating direct connections to other devices on the same network.

The original code you might have found could look something like this:

# Original configuration example
# Assumes both devices are on the same local network
rdp -host 192.168.1.10 -user your_username -password your_password

Setting Up Remote Desktop Connection with VPN

To successfully connect via RDP while on a VPN, you'll need to consider several factors:

Ensure VPN Settings Allow Local Network Access: Some VPN services block local network access for security reasons. Check your VPN settings or consult your service provider to ensure that local network access is enabled while connected. Look for options like "Allow LAN access" or "Split tunneling".
Find the Host’s Local IP Address: You need to know the local IP address of the host machine you want to connect to. You can find this by typing ipconfig in the Command Prompt on Windows or ifconfig on macOS/Linux. Look for the IPv4 address (for example, 192.168.1.10).
Configure Remote Desktop Settings on the Host: Make sure that Remote Desktop is enabled on the host computer. Go to Control Panel > System and Security > System > Remote Settings, and check "Allow remote connections to this computer."
Firewall Settings: Ensure that your Windows Firewall (or any third-party firewall) allows RDP connections. You can check this by going to Control Panel > System and Security > Windows Defender Firewall > Allow an app or feature through Windows Defender Firewall. Make sure Remote Desktop is checked for both private and public networks.
Connect Using RDP Client: Once the VPN settings allow local access, and the host's IP address and RDP settings are verified, use the following command to connect via RDP:
```
mstsc /v:192.168.1.10
```
Or, for more options:
```
rdp -host 192.168.1.10 -user your_username -password your_password
```

Example Scenario

Let’s say your desktop's IP address is 192.168.1.10. You are on your laptop connected to a VPN. Following the steps outlined, you check the VPN settings, which allow local network access, ensure the RDP settings on your desktop are enabled, and then use the command:

mstsc /v:192.168.1.10

This initiates the RDP session. If all settings are correct, you should see the login screen of your desktop, allowing you to access it as if you were physically in front of it.

Conclusion

Connecting to a host on your local home network while on a VPN might seem daunting, but with the right configurations, it can be done seamlessly. Make sure your VPN allows local access, confirm your IP configurations, and set the appropriate firewall and RDP settings.

Useful Resources

This guide aims to make the process of RDP over a VPN clear and accessible for everyone. By following these steps, you will ensure secure and reliable access to your desktop from anywhere in your home network.