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63 lines
2.5 KiB
ReStructuredText
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============================
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WireGuard Site-to-Site Setup
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============================
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------------
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Introduction
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------------
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WireGuard is a simple and fast modern VPN protocol. It aims to be faster and less complex than IPSec.
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It intends to be considerably more performant than OpenVPN. Initially released for the Linux kernel,
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it is now cross-platform and widely deployable.
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---------------------
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Step 1 - Installation
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---------------------
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Install the plugin as usual, refresh and page and the you will find the client
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via :menuselection:`VPN --> WireGuard`.
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------------------------
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Step 2 - Setup WireGuard
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------------------------
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Go to tab **Local** and create a new instance.
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Give it a **Name** and set a desired **Listen Port**. If you have more than one service instance be
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aware that you can use the **Listen Port** only once. For **Tunnel Address** choose a new virtual
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network to run communication over it, just like with OpenVPN or GRE (e.g. 192.168.0.1/24).
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**Peers** can not be chosen yet since we have not created them yet.
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After hitting **Save changes** you can reopen the newly created instance, write down your new public
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key and give it to the other side.
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When this VPN is set up on OPNsense only do the same on the second machine and exchange the public
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keys. Now go to tab **Endpoints** and add the remote site, give it a **Name**, insert the **Public
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Key** and the **Allowed IPs** e.g. *192.168.0.2/32, 10.10.10.0/24*. This will set the remote tunnel
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IP address (/32 is important when using multiple endpoints) and route 10.10.10.0/24 via the tunnel.
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**Endpoint Address** is the public IP of the remote site and you can also set optionally the
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**Endpoint Port**, now hit **Save changes**.
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Go back to tab **Local**, open the instance and choose the newly created endpoint in **Peers**.
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Now we can **Enable** the VPN in tab **General** and go on with the setup.
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-----------------------
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Step 3 - Setup Firewall
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-----------------------
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On :menuselection:`Firewall --> Rules` add a new rule on your WAN interface allowing the port you set in your
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instance (Protocol UDP). You also have a new interface **Wireguard** in rules, where you can
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set granular rules on connections inside your tunnel.
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Your tunnel is now up and running.
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-------------------------
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Step 4 - Routing networks
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-------------------------
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If you want to route your internal networks via this VPN just add the network in the field
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**Allowed IPs** in **Endpoints** tab (e.g. 10.0.1.0/24).
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That's it!
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