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Binding VPN server to distant local network through VPN tunnel for local traffic only

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nakwa

Apologies if the title is a bit cryptic - not sure how to phrase it better. Hope this is not a duplicate question.

  • 1/ I have an Open VPN server running on my local network, which I connect to when I need access to my NAS and other devices at home. This works well, but this is quite slow when it comes to accessing the internet, outside the local network.

  • 2/ Aside from that, I have another OpenVPN server on a distant hosted VPS, which I use regularly, for security purpose, when travelling, using public wifi, etc.

  • The issue is that, obviously, I always end up having to chose between having access to my local network with a slow internet connection, and having a fast(er) VPN connection using my VPS but without access to my local network.

My question is: How do I bridge my VPS server with my local network over a VPN connection so that the VPS is acting both as VPN client to the local network and as VPN server with a direct gateway to the internet? In other words, my goal is to have a single VPN tunnel enabling remote access to my local network while having an acceptable internet connection speed.

The way I understand it, I would have to configure my VPS VPN to direct all external traffic directly to the web, and direct all local traffic to my home-based network, probably through yet another VPN tunnel. Is this possible? Beside, is it an OpenVPN configuration issue or an iptables one?

This is what I want to achieve Diagram: This is what I want to achieve

Thanks!

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