What is VLAN hopping prevention and how can I implement it?

What is VLAN hopping prevention and how can I implement it?

VLAN hopping prevention refers to techniques used to stop unauthorized access to VLANs. It typically involves configuring switches to prevent traffic from being sent to unauthorized VLANs.

What are some common methods to prevent VLAN hopping?

Common methods include using port security, disabling unused ports, and implementing proper VLAN tagging.

Can you explain how port security works?

Port security allows you to restrict the number of MAC addresses that can be learned on a port, preventing unauthorized devices from accessing the network.

Are there any specific configurations I should be aware of?

Yes, ensure that you configure trunk ports correctly and use access control lists (ACLs) to limit traffic between VLANs.

What tools can I use to monitor VLAN security?

You can use network monitoring tools like Wireshark, SolarWinds, or PRTG to analyze VLAN traffic and detect anomalies.