Which Of The Following Suggestions Can Help Prevent Vlan Hopping Attacks On A Network?

Which Of The Following Suggestions Can Help Prevent VLAN Hopping Attacks On A Network?

We should disable the auto trunking and we should move all the native VLANs to the and used VLANs. Before we discuss the prevention of VLAN attacks, firstly we should learn about the basic concept of the VLAN.

The basic function of this V LAN is that it will restrict the accessing of the network of the different devices that are present.

Here in this V LAN hopping, the attacker can able to access the systems that are present in different V LANs. Now, this can target the specific system that is present in the different V LAN.

Now there are two techniques in order to perform this Vlan attack. Now let us know about that in detail. Normally it has two techniques the first one is called switch spoofing and the second one will be called double tagging.

Now let us discuss each of these techniques in detail. Now let us take an example in order to understand this concept in detail. Let say we have two switches, and to the sweet hey there is a system that is connected to it. Hear all the products will be present into the same V LAN. Hence this will be used in order to communicate with each other.

We also have certain forces where some external devices are connected like printers. Now, this printer can communicate with each other but it is not able to communicate with the PCs.

This is because these PCs are present in different types of VLANs.

Now the same situation will have happened on switch B. Here the PCs that are present on switch A, cannot come able to communicate with the PCs that are present on switch b.

The communication is not done because there is no link that is present between switch a and switches b. For this, we need to configure one put on the switch that is called a front port. The same will be performed on switch b. Now, these transport are connected to each other.

Hence this trunk port can able to carry the traffic of multiple VLANs that are present. This can able to carry the VLAN of the PC and V LAN of the printer.

Now this PC which is present on the different switches can able to communicate with each other. But still, the printers are not able to communicate with each other.

In this hopping attack that the attacker can able to hop to the other VLAN if even if he is present in some other VLAN.

In switch spoofing, the attacker can able to the advantages of the protocol which is known as dynamic trunking protocol. The other name for this dynamic trunking protocol is auto trunking.

And the other type of attack is called double tagging, for this, the attacker wants to target the server that is present in a different VLAN. For this, we will connect to the system the access port and now we will target the server that is present on the switch.