Advanced Routing Techniques With MikroTik Routers And Proxy

Today, we want to talk about something that many of our fellow farmers have been struggling with; establishing VPN tunnels and being able to ping routers across the tunnel, but not the CPU. If you are one of those farmers facing this issue, you’ve come to the right place. We’ve done some research and we’re here to help you out.

First of all, let’s discuss what a VPN tunnel is. A VPN tunnel is a connection between two devices that allows for secure communication. It creates an encrypted channel between them, so that any data transferred between the two devices is secure and can’t be accessed by anyone else.

The issue of being able to ping routers across the tunnel, but not the CPU is quite common, and there are several reasons why this problem arises. Here are some of the most common reasons:

1. The firewall is blocking ICMP traffic

ICMP, which stands for Internet Control Message Protocol, is a type of protocol used for diagnostic purposes. It’s the protocol that’s used when you ping a device. If the firewall is configured to block ICMP traffic, you will be able to ping routers across the tunnel, but not the CPU.

2. The routing table is incorrect

If the routing table is incorrect, it can cause issues with being able to ping routers across the tunnel. The routing table is used to determine the path that network traffic takes. If it’s incorrect, traffic may not be able to reach its destination.

3. The subnet masks are incorrect

The subnet mask is used to determine the size of the network. If it’s incorrect, devices may not be able to communicate with each other. For example, if the subnet mask is set to 255.255.255.0, but it should be 255.255.0.0, devices on different subnets won’t be able to communicate with each other.

4. The VPN configuration is incorrect

If the VPN configuration is incorrect, it can cause issues with being able to ping routers across the tunnel. Make sure that the configuration is correct and matches on both sides of the tunnel.

Now that we’ve discussed some of the most common reasons why you might be facing this issue, let’s talk about some solutions:

1. Check if ICMP traffic is being blocked

If you suspect that the firewall is blocking ICMP traffic, check the firewall logs to see if any ICMP traffic is being blocked. If it is, you can create a firewall rule to allow ICMP traffic.

2. Check the routing table

Check the routing table to make sure that the correct path is being taken by network traffic. If it’s incorrect, you can modify the routing table to fix the issue.

3. Check the subnet masks

Make sure that the subnet masks are correct for all devices on the network. If they are incorrect, you can modify the subnet mask on the affected devices to fix the issue.

4. Check the VPN configuration

Double check the VPN configuration to make sure that it’s correct on both sides of the tunnel. If it’s incorrect, you can modify the configuration to fix the issue.

Hopefully these solutions have helped you to resolve the issue of being able to ping routers across the tunnel, but not the CPU. If you’re still having issues, it may be helpful to consult with a network specialist to further troubleshoot the issue.

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Remember, establishing a VPN tunnel is an important step in keeping your network secure. It’s important to make sure that everything is configured correctly so that you can have the peace of mind that your data is safe.