CCNA DAY 17 Configuring Port Security on Cisco Switch, Switchport

Switchport Nonegotiate. LAN Multicast ppt download Good day all, Please check my understanding of the switchport nonegotiate command Best practice to use switchport nonnegotiate with switchport mode trunk this way we can turn off DTP and avoid VLAN hopping attack( attacker can use DTP no negotuate a trunk)

The switchport nonegotiate command is used to stop the port from sending DTP messages (Dynamic Trunk Port). This command stops the interface from generating DTP frames in a trunking setup.

PPT Configure a Switch PowerPoint Presentation, free download ID

If DTP negotiation fails then become an access port." Switch (config-if)# switchport trunk allowed vlan remove 2 (Optional) Configures the list of VLANs allowed on the trunk This command stops the interface from generating DTP frames in a trunking setup.

PPT Configure a Switch PowerPoint Presentation, free download ID. Use the switchport nonegotiate command on the interface The vlan-list parameter is either a single VLAN number from 1 to 4094 or a range of VLANs described by two VLAN numbers, the lower one first, separated by a hyphen.

Solved Switchport access and trunk on Layer 3 switch problems Cisco. The switchport nonegotiate command is issued to prevent DTP (negotiation) packets from being sent out the interface DTP negotiation cannot be disabled on an interface that is configured in dynamic auto or dynamic.