No Native VLAN - Want to drop untagged traffic

[nickydd9]

Hi,

I am more familiar with trunks on Meraki in which you have the ability under the option for "Native VLAN" to set "Drop Untagged Traffic" so that only tagged traffic traverses the link and anything else is dropped.

How would one set this up on non-Meraki Cisco networking equipment? Would it just be as simple as not specifying a Native VLAN on the trunk as well as making sure VLAN 1 is administratively down?

[balaji.bandi]

yes cisco environment, if nothing mentioned fall under VLAN 1.

If the VLAN 1 not available, they drop at the end switch. - your explanation is correct.