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How to Configure VLAN Hopping for Cisco Switches on Attack P

http://www.router-switch.com/ Following the best way to configure VLAN Hopping for Cisco Switches on Attack Prevention. Huge disscount for Cisco switches at Router-Switch.com.

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How to Configure VLAN Hopping for Cisco Switches on Attack P

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  1. How to Configure VLAN Hopping for Cisco Switch http://www.router-switch.com/

  2. VLAN Hopping VLAN hopping (virtual local area network hopping) is a method of attacking a network by sending packets to a port that is not normally accessible from a given end system. The basic concept behind all VLAN hopping attacks is for an attacking host on a VLAN to gain access to traffic on other VLANs that would normally not be accessible. There are two primary methods of VLAN hopping: switch spoofing and double tagging. Following the easy steps to configure VLAN Hopping for Cisco Switches on Attack Prevention.

  3. Switch-1 (config)# vtp mode server Switch-1 (config)# vtp domain rt Switch-1 (config)#vtp pruning Switch-1 (config)#vtp version 2 Switch-1 (config)#vtp password cisco Switch-1(config)# vlan 99 Switch-1(config)# vlan 10 Switch-1(config-vlan)# name yanfa Switch-1(config)#interface fastethernet 0/1 Switch-1(config-if)# switchport mode access Switch-1(config-if)# switchport access vlan 10 Switch-1(config)# vlan 20 Switch-1(config-vlan)# name renshi Switch-1(config)#interface fastethernet 0/2 Switch-1(config-if)# switchport mode access Switch-1(config-if)# switchport access vlan 20 Switch-1(config)#interface fastethernet 0/24 Switch-1(config-if)#shutdown Switch-1(config-if)#switchport trunk encapsulation dot1q Switch-1(config-if)#switchport trunk allowed vlan 99,10,20 Switch-1(config-if)#switchport mode trunk Switch-1(config-if)#switchport trunk native vlan 99 Switch-1(config-if)#switchportnonegotiate Switch-1(config-if)#no shutdown

  4. Switch-2 (config)#vtp domain rt Switch-2 (config)#vtp password cisco Switch-2 (config)#vtp pruning Switch-2 (config)#vtp version 2 Switch-2 (config)#vtp mode client Switch-2(config)#interface fastethernet 0/1 Switch-2 (config-if)# switchport mode access Switch-2 (config-if)# switchport access vlan 10 Switch-2(config)#interface fastethernet 0/2 Switch-2 (config-if)# switchport mode access Switch-2 (config-if)# switchport access vlan 20 Switch-2(config)#interface fastethernet 0/24 Switch-2(config-if)#shutdown Switch-2(config-if)#switchport trunk encapsulation dot1q Switch-2(config-if)#switchport trunk allowed vlan 99,10,20 Switch-2(config-if)#switchport mode trunk Switch-2(config-if)#switchport trunk native vlan 99 Switch-2(config-if)#switchportnonegotiate Switch-2(config-if)#no shutdown

  5. VLAN Hopping Function VLAN hopping can be used to steal passwords and other sensitive information from specific network subscribers. VLAN hopping can also be used to modify, corrupt, or delete data, install spyware or other malware programs, and propagate viruses, worms, and Trojans throughout a network. This example can be applied to all the Cisco switches, like Catalyst 2960, 3560 series switch, Cisco 3750X, 3850 Cisco, etc.

  6. Contact Us: Website: http://www.router-switch.com/ Tel: +1-626-239-8066 (USA) +852-9795-4940 / +852-3174-6166 (Hong Kong) Fax: +852-3050-1066 (Hong Kong) Email: cisco@router-switch.com (Sales Inquiries)

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