Configuring MikroTik Router As A Transparent Proxy Step-by-Step

If you are running a network and looking to increase the security of your traffic, you might want to consider using a transparent proxy. In this tutorial, I will be showing you how to set up a transparent proxy on a MikroTik router.

A transparent proxy acts as an intermediary between your network and the internet. It intercepts all traffic and can be used to filter, cache, and log that traffic. By using a transparent proxy, you can gain greater control over the traffic that is entering and leaving your network.

Setting up a Transparent Proxy on a MikroTik Router

Setting up a transparent proxy on a MikroTik router is a three-step process:

• Set up a NAT rule to redirect traffic to the proxy.
• Set up a firewall rule to allow traffic to the proxy.
• Configure the proxy.

Step 1: Setting up a NAT Rule to Redirect Traffic to the Proxy

In this step, we will create a NAT rule that redirects all traffic on port 80 to our proxy. To do this, follow these steps:

1. Log in to your MikroTik router and open the Terminal.
2. Type the following command to create a new NAT rule:

   /ip firewall nat add chain=dstnat protocol=tcp dst-port=80 action=redirect to-ports=8080

3. This will redirect all traffic on port 80 to port 8080, which is the default port for the web proxy in MikroTik.

Step 2: Setting up a Firewall Rule to Allow Traffic to the Proxy

In this step, we will create a firewall rule that allows traffic to the web proxy. To do this, follow these steps:

1. Log in to your MikroTik router and open the Terminal.
2. Type the following command to create a new firewall rule:

   /ip firewall filter add chain=forward protocol=tcp dst-port=8080 action=accept

3. This will allow all TCP traffic on port 8080, which is the port we are using for our web proxy.

Step 3: Configuring the Proxy

In this step, we will configure the web proxy on our MikroTik router. To do this, follow these steps:

1. Log in to your MikroTik router and open the Winbox application.
2. Click on IP in the left-hand menu and then click on Web Proxy.
3. Click on the Settings tab and configure the following options:
• Enabled: Check this box to enable the web proxy.
• Port: Set this to 8080, which is the default port for the web proxy in MikroTik.
• Transparent Proxy: Check this box to make the proxy transparent.
• Cache Size: Set the cache size to an appropriate value for your network.
4. Click on the Access tab and configure the following options:
• Allowed Address: Set this to the IP address range that you want to allow to use the proxy.
• Forbidden Address: Set this to the IP address range that you want to block from using the proxy.
5. Click on the Blacklists tab if you want to use a blacklist to block certain websites or content.
6. Click on the Parent Proxy tab if you want to use a parent proxy.

Once you have configured the web proxy on your MikroTik router, you should be able to see the traffic passing through the proxy in the Logs section of the Web Proxy menu.

Conclusion

Setting up a transparent proxy on a MikroTik router can be a valuable tool for improving the security and control of your network traffic. By following these steps, you can easily set up a transparent proxy on your MikroTik router and gain greater control over the traffic that is entering and leaving your network.

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