MikroTik RouterOS VPN An Introduction To Tunneling Protocols

If you are looking for a secure and reliable way to connect two or more networks together, you may want to consider setting up a Site-to-Site OpenVPN tunnel using MikroTik routers. This setup will allow you to transfer data between your networks with minimal risk of interception or unauthorized access.

Here are some of the key benefits of using a Site-to-Site OpenVPN tunnel:

Powerful Encryption

OpenVPN uses industry-standard encryption protocols (AES-256 and RSA-4096) to ensure that your data stays secure and private at all times. This means that even if someone intercepts your data, they won't be able to read it without the correct encryption key.

Remote Access

OpenVPN also supports remote access, which means that you can securely access your network from anywhere in the world, as long as you have an internet connection. This can be particularly useful for remote workers or employees who need to access company resources from outside the office.

Reduced Costs

Setting up a Site-to-Site OpenVPN tunnel is generally much cheaper than purchasing dedicated networking hardware. It also allows you to take advantage of your existing internet connection to transfer data, which can save you money on additional bandwidth costs.

Scalability

OpenVPN is a highly scalable solution that can be used to connect two or more networks of any size. This means that you can easily add additional networks to your setup as your business grows, without having to invest in expensive networking hardware.

How to Set Up a Site-to-Site OpenVPN Tunnel with MikroTik Routers

The following steps will guide you through the process of setting up a Site-to-Site OpenVPN tunnel using MikroTik routers:

Step 1: Set Up the OpenVPN Server

The first step in setting up a Site-to-Site OpenVPN tunnel is to configure the OpenVPN server on the router that will act as the server. This can be done by following these steps:

1. Log in to your MikroTik router using your web browser or Winbox application.
2. Click the "IP" tab and select "Services" from the drop-down menu.
3. Click the "Add New" button and select "OVPN Server" from the list.
4. Configure the following settings:

• Port: The port number that the server will listen on (default is 1194).
• Cipher: The encryption cipher that the server will use (AES-256 recommended).
• Auth Type: The authentication method that the server will use (SHA-256 recommended).
• User Certificate/CA Certificate: The certificate that the server will use to authenticate clients (make sure to import the correct certificates).

Step 2: Set Up the OpenVPN Client

The next step is to configure the OpenVPN client on the router that will act as the client. This can be done by following these steps:

1. Log in to your MikroTik router using your web browser or Winbox application.
2. Click the "IP" tab and select "OpenVPN" from the drop-down menu.
3. Click the "Client" tab and then click the "Add New" button.
4. Configure the following settings:

• Connect To: The IP address or hostname of the OpenVPN server.
• Port: The port number that the server is listening on.
• User Certificate/CA Certificate: The certificate that the client will use to authenticate with the server (make sure to import the correct certificates).
• Cipher: The encryption cipher that the client will use (must match the server).
• Auth Type: The authentication method that the client will use (must match the server).

Step 3: Create a Firewall Rule

After configuring the OpenVPN server and client, you need to create a firewall rule to allow traffic to flow between the two networks. This can be done by following these steps:

1. Log in to your MikroTik router using your web browser or Winbox application.
2. Click the "IP" tab and select "Firewall" from the drop-down menu.
3. Click the "Add New" button and configure the following settings:

• Action: Accept
• Chain: Forward
• Protocol: UDP or TCP (depending on your OpenVPN configuration)
• Src. Address: The IP address range of the client network
• Dst. Address: The IP address range of the server network
• Dst. Port: The port number that the OpenVPN server is listening on

Step 4: Test the Connection

Once you have completed the above steps, you should be able to establish a Site-to-Site OpenVPN tunnel and transfer data between the two networks. To test the connection, try pinging a device on the remote network or accessing a shared resource.

Conclusion

A Site-to-Site OpenVPN tunnel is a powerful and versatile solution for connecting two or more networks together. It provides strong encryption, remote access capabilities, and scalability, all while being more cost-effective than traditional networking solutions. By following the steps outlined in this guide, you can easily set up a Site-to-Site OpenVPN tunnel using MikroTik routers and enjoy the benefits of a secure, reliable, and flexible network.

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