Question about Cisco - Enterasys integration WLAN

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We have a complete new enterasys infrastructure with some older Cisco devices.

How do i have to config a cisco switch port to work together with a enterasys AP ? 

Our Management VLAN for the Wireless AP ́s is VLAN 99 and all the Client Access VLAN ́s with different kinds of Authentification are the VLAN 100- 105 

On a enterasys switch i configure the port for an Access Point with 

Untagged VLAN 99 and tagged VLAN 100 / tagged VLAN 101  ......

But on the Cisco Switch there i know only a port working

as a access port with a VLAN or
as a trunk port with different trunks to let pass VLAN 1- 20 or VLAN 1-100 ....

How to configure a cisco Port :

that it will tag the traffic with vlan 99 if traffic come from the AP Managment untagged ..
and let the traffic pass that will come already tagged with  VLAN 101 ..from the Wireless clients via the AP SSID 

Is this ever possible to do this with a cisco switch port  ??


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Posted 4 years ago

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Michael Kirchner

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Hi Christian,

in this case you have to configure a trunk port with a native vlan.


conf t
interface gig 1/1
switchport trunk encapsulation dot1q
switchport mode trunk
switchport trunk native vlan 99
switchport trunk allowed vlan 100-105

Keep in mind: CIsco does not support Authentication (MAC or 802.1X) on a trunk port!

Best Regards