How to config the WLAN of this topology?

LongTran21788 · ‎10-19-2020

Hi all,

I have a topology as below:

VLAN 1: default, and native
VLAN 16: wifi 1
VLAN 17: wifi 2
VLAN 110: management

On WLC, I config the management VLAN:

IP: 172.1.6.2
Subnet mask: 255.255.255.0
Default gateway: 172.1.6.1
DHCP: 172.1.6.1
Port: 1
VLAN identifier: 16

On Cisco2960, I config the VLAN:

Gi 0/15: trunk, native VLAN 16
Gi 0/1-4: trunk, native VLAN 16

=> then I plug the cable to WLC-port 1 to the Cisco2960-Gi 0/15 and the AP-1815I-S-K9 to Cisco2960-Gi 0/1 => the APcan connect to the WLC and I have SSID and internet.

But when I change the native VLAN to another management VLAN (for example I want to manage the WLC and AP on VLAN 110, and broadcast SSID on VLAN 1, VLAN 2) => then I change the management info on WLC:

172.1.6.2 => 172.1.10.2
255.255.255.0 = 255.255.255.0
172.1.6.1 => 172.1.10.1
etc...

I also change the native VLAN from 16 to 110 at Gi 0/15, Gi 0/1-8 port of 2960.

But it does not work.

I would like to as where I was wrong on the configuration? And how to config as I want:

The WLC and AP will be on VLAN 110 => which native VLAN or trunk I need to do?

Thanks.

patoberli · ‎10-20-2020

You have two deployment modes, one is local the other is Flexconnect. Depending on what you want, you have to configure the network differently.

Here the guide for the special Flexconnect mode: https://www.cisco.com/c/en/us/td/docs/wireless/controller/8-5/config-guide/b_cg85/flexconnect.html

But typically you want Local mode, in that case the port to the AP can be in access mode (not trunk) with the ap-manager interface of the WLC as the VLAN (probably 16 in your drawing).