wlc 2504 beginner question

[Sandeep Choudhary]

HI Mohd.

Mohd Khairul Nizam wrote:
Hi,
I want to setup wlc 2504. but i confuse about how to configure the interface and how to connect.
Please see attached picture.
question 
1. if i want to connect WLC at core sw, port 24 must be Trunk port?
2. based on the picture attached, can the WLC IP set to 10.154.120.231 (Vlan 120)?
3. should the management IP set to 10.154.120.231 or create new vlan120 and set IP?
4. PoE switch that connect the AP must be configured as Access mode?
5. Can the AP set to VLAN 120?
Thanks.

1. Yes If you need to connect WLC then put in trunk mode.

2. I think yes.

3.If you are setting the wlc vlan to 0 which is untagged, then you need the switchport trunk native vlan xx.( When you configure a VLAN to tag the management interface, WLC will tag all the packets going out of management interface with that VLAN.  With native vlan configured in switch port, switch expects frames in native vlan come without any tag ): i will recommand to create a vlan and set IP.I will recommand to use tagged the vlan for WLC.

4.Yes AP should be in Access mode if AP are in local mode.

5.yes , its always good to put AP and WLC in same subnet.

Regards

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[Sandeep Choudhary]

check this:

http://www.cisco.com/c/en/us/support/docs/wireless/4400-series-wireless-lan-controllers/69719-wlc-lwap-config.html

Regards

[Mohd Khairul Nizam]

should the IP 10.154.120.231 be configured at management interfaces?

how about other vlan? can it communicate/ping with the WLC?

[Daniel Ordóñez Flores]

Yes. Should be. I don't see other vlan's.

[Sandeep Choudhary]

First thing.

did you created vlan 120 on core swicth ?? if yes then  just assign the IP to WLC:10.154.120.231.

If you want to create many wlans..then you have to use trun port for WLC.

Example:

My core: in my examlple wlc and AP are in vlan 80.

WLC ip is 10.99.80.1

Core Switch:

interface Vlan80

ip address 10.99.80.241 255.255.255.0

.

.

.

interface FastEthernet0/18

description *** WLAN Controller, ***

switchport trunk encapsulation dot1q

switchport trunk allowed vlan 80-82

switchport mode trunk

Edge switch:

interface FastEthernet0/21

description *** AP ***

switchport access vlan 80

switchport mode access

Regards

[Mohd Khairul Nizam]

Hi all,

The problem now is, when i try to tagged the management int to vlan 120, i will lose the connectivity with the WLC.

Why is it?

[Sandeep Choudhary]

Hi Mohd,

It will be better to configure from the WLC scratch.

Start configuring intial config agaiun and then try.

Regards

[Mohd Khairul Nizam]

Hi all,

Thanks for the reply.

Please see attachment

Now i did change the overall IP address. if you all can see that the IP address of WLC and AP were the same as the existing switch. (10.154.101.x/24)

now CORE-->WLC-->Edge SW-->AP can ping each other.

The AP is in Level 2, all device in this floor is using VLAN 120. I can see the wireless signal but unable to retrive the DHCP address. Already assign DHCP server in the management interface.

How can user VLAN 120, connect to the AP?

[Scott Fella]

Post your show WLAN

If you connect a wired laptop to a port in the switch that the AP's are connected to and put that port on Vlan 120, does the laptop get an IP address.

Sent from Cisco Technical Support iPhone App

[Mohd Khairul Nizam]

Hi Scott,

I don't have connection to the device now, thus i can't show u the result.

I did try to connect my laptop to port 3 at poe switch, i remember i didn't get IP address for vlan 120.

Is it because the port 3 only allow vlan 1 only?

[Mohd Khairul Nizam]

i only have 1 WLAN ID using WPA-PSK

[Sandeep Choudhary]

Do you want that user get ip in vlan 120 or ?

It will be better if you use other vlan for user like 121 or any other.

You can use vlan 120 only for manageemnt: its just a suggestion.

Regards

[Mohd Khairul Nizam]

we have other vlan (130,150) but let say this floor all user is vlan 120, how does when connect to the AP, i get IP address from vlan 120.

right now, i able to connect to the AP but with limited access due to not getting IP address from dhcp server

[Sandeep Choudhary]

HI,you hafve vlan 120 on core swicth right ?

did you enter ip helper command under int vlan 120.

Example:

interface Vlan120

ip address 10.xx.120.254 255.255.255.0

ip helper-address 10.xx.21.1   -----> dhcp server IP address

Try this and let us know.

Regards