How can VLAN hopping attacks be prevented?

How can VLAN hopping attacks be prevented?

To prevent the VLAN hopping from being exploited, we can do the below mitigations: Ensure that ports are not set to negotiate trunks automatically by disabling DTP: NEVER use VLAN 1 at all. Disable unused ports and put them in an unused VLAN u25aa Always use a dedicated VLAN ID for all trunk ports.

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? Disable auto trunking and move native VLANs to unused VLANs.

What is the best way to prevent a VLAN hopping attack quizlet?

What is one way to prevent the VLAN hopping attack? Disable DTP negotiation on all ports. Turn trunking off on all ports that are used to connect to hosts and disable DTP negotiation on all trunking ports to prevent the VLAN hopping attack. This type of attack can be attempted through switch spoofing or double tagging.

What are three methods to prevent VLAN attacks choose three options?

Disable DTP.Enable Source Guard.Set the native VLAN to an unused VLAN.Use private VLANs

What is the best way to prevent a VLAN hopping attack group answer choices?

What is one way to prevent the VLAN hopping attack? Disable DTP negotiation on all ports. Turn trunking off on all ports that are used to connect to hosts and disable DTP negotiation on all trunking ports to prevent the VLAN hopping attack. This type of attack can be attempted through switch spoofing or double tagging.

Which actions can you take to prevent VLAN hopping choose two?

VLAN hopping attacks rely on the attacker being able to create a trunk link with a switch. Disabling DTP and configuring user-facing ports as static access ports can help prevent these types of attacks.

Which of the following suggestions can help prevent VLAN hopping attacks on a net work?

Which of the following suggestions can help prevent VLAN hopping attacks on a network? Disable auto trunking and move native VLANs to unused VLANs.

What is the nmap utility used for?

Nmap (Network Mapper) is a free, open source utility for network exploration and security auditing. It was designed to rapidly scan large networks, although it works fine against single hosts.

What is not one of the ways in which network are commonly segmented?

What is NOT one of the ways in which networks are commonly segmented? Subnet masks are NOT used in IPv6 addressing. You have been tasked with the creation and design of a network that must support a minimum of 5000 hosts.

What command will set the native VLAN?

The default behaviour can be changed by using the command switchport trunk native vlan. where x26lt;vlan-idx26gt; is the desired VLAN for which traffic must be untagged. Enter configuration commands, one per line. End with CNTL/Z.

What is used for a VLAN hopping attack?

To prevent the VLAN hopping from being exploited, we can do the below mitigations: Ensure that ports are not set to negotiate trunks automatically by disabling DTP: NEVER use VLAN 1 at all. Disable unused ports and put them in an unused VLAN u25aa Always use a dedicated VLAN ID for all trunk ports.

What are the ways of securing VLANs?

Which of the following suggestions can help prevent VLAN hopping attacks on a network? Disable auto trunking and move native VLANs to unused VLANs.

What are three VLAN attack mitigation techniques choose three options?

Explanation: Mitigating a VLAN attack can be done by disabling Dynamic Trunking Protocol (DTP), manually setting ports to trunking mode, and by setting the native VLAN of trunk links to VLANs not in use.

What is the best way to prevent a VLAN?

What is the best way to prevent a VLAN hopping attack?

  • Disable trunk negotiation for trunk ports and statically set nontrunk ports as access ports.
  • Disable STP on all nontrunk ports.
  • Use VLAN 1 as the native VLAN on trunk ports.
  • Use ISL encapsulation on all trunk links.

24-Jun-2020

What are three possible VLAN attacks?

Ten top threats to VLAN security

  • CAM Table Overflow/Media Access Control (MAC) Attack.
  • Address Resolution Protocol (ARP) attack.
  • Switch Spoofing/Basic VLAN Hopping Attack.
  • Double Tagging/Double Encapsulation VLAN Hopping Attack.
  • VLAN Management Policy Server (VMPS)/ VLAN Query Protocol (VQP) attack.

What is one method that can be used to prevent VLAN hopping?

Good security hygiene helps reduce the risk of VLAN hopping. For example, unused interfaces should be closed and placed in a parking lot VLAN. Using VLANs on trunk ports should be avoided unless they are necessary. Additionally, access ports should be configured manually with the switchport mode access.

Which two methods are used to mitigate VLAN attacks?

There are two primary methods of VLAN hopping: switch spoofing and double tagging. Both attack vectors can be mitigated with proper switch port configuration.

What is VLAN hopping attack?

VLAN Hopping is an attack where the attacker is able to send traffic from one VLAN into another. There are two different methods to accomplish this: Double tags: the idea behind the attack is that the attacker is connected to an interface in access mode with the same VLAN as the native untagged VLAN on the trunk.

What actions should be taken to protect VLANs from direct attacks?

A few other recommended best practices in regard to VLAN security includes the following:

  • Shutting down unused interfaces and placing them in a so-called parking lot VLAN.
  • Restrict the VLANs allowed on trunk ports to only those that are necessary.
  • Manually configure access ports with the switchport mode access.

What two steps can be taken to help prevent VLAN hopping choose two?

First, avoid putting any hosts on the default VLAN (VLAN 1). Second, be sure that the native VLAN on every trunk port is an unused VLAN ID. Finally, enable explicit tagging of the native VLAN for all trunk ports.

How can you prevent VLAN hopping?

To prevent the VLAN hopping from being exploited, we can do the below mitigations: Ensure that ports are not set to negotiate trunks automatically by disabling DTP: NEVER use VLAN 1 at all. Disable unused ports and put them in an unused VLAN u25aa Always use a dedicated VLAN ID for all trunk ports.

What are two ways of achieving a VLAN hopping attack?

VLAN hopping attacks rely on the attacker being able to create a trunk link with a switch. Disabling DTP and configuring user-facing ports as static access ports can help prevent these types of attacks.

What can help prevent VLAN hopping attacks on a network?

Which of the following suggestions can help prevent VLAN hopping attacks on a network? Disable auto trunking and move native VLANs to unused VLANs.

Which of the following is an approach to VLAN hopping?

The two approaches the hacker might use for VLAN hopping are as follows: * double tagging-The hacker stacks VLAN tags in Ethernet frames. When the first, legitimate tag is removed by a switch, the second, illegitimate tag is revealed, tricking a switch into forwarding the transmission on to a restricted VLAN.

What is the Nmap utility used for quizlet?

What is the Nmap utility used for? a. It is used to identify unsecured sensitive data on the network, such as credit cards

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