Which protocol should be disabled to mitigate VLAN attacks?

Which protocol should be disabled to mitigate VLAN attacks?

• A. VTP
• B. RSTP
• C. STP
• D. DTP

Answer: (D)

Disabling the Dynamic Trunking Protocol (DTP) is an effective measure to mitigate VLAN attacks because DTP can dynamically negotiate trunk links between switches. If DTP is enabled, a malicious user can potentially manipulate VLANs by introducing unauthorized trunk links, allowing them to access multiple VLANs that they should not have permissions for. This could lead to a range of attacks, such as VLAN hopping. By turning off DTP on switch interfaces, only manually configured trunk ports will exist, which substantially increases control over VLAN management and access. This precaution restricts the possibility of unauthorized VLAN access and maintains a more secure network environment. Maintaining stronger control over trunk interfaces and VLAN configurations directly helps to protect the integrity of the VLAN structure, making DTP a primary focus when looking to secure VLAN deployments against potential threats.

Disabling the Dynamic Trunking Protocol (DTP) is an effective measure to mitigate VLAN attacks because DTP can dynamically negotiate trunk links between switches. If DTP is enabled, a malicious user can potentially manipulate VLANs by introducing unauthorized trunk links, allowing them to access multiple VLANs that they should not have permissions for. This could lead to a range of attacks, such as VLAN hopping.

By turning off DTP on switch interfaces, only manually configured trunk ports will exist, which substantially increases control over VLAN management and access. This precaution restricts the possibility of unauthorized VLAN access and maintains a more secure network environment.

Maintaining stronger control over trunk interfaces and VLAN configurations directly helps to protect the integrity of the VLAN structure, making DTP a primary focus when looking to secure VLAN deployments against potential threats.