cancel
Showing results for 
Search instead for 
Did you mean: 
cancel
7168
Views
10
Helpful
33
Replies

APs not Join WiSM

cdiaz
Level 1
Level 1

Hello, I am Claudio

I have problems with register the APs in the module WiSM, the AP join statistics is null.

The IPs from APs are local DHCP in the module.

The softtware version in the WiSM is 7.0.116. The APs are 1140. The IOS version on the Cat6500 is 12.2.33SXI4a.

Some of you had a similar problem.

Thanks, best regards

33 Replies 33

Surendra BG
Cisco Employee
Cisco Employee

are the APs getting the IP address from the same subnet as that of the management int of the WLC is it??

Regards

Surendra

Regards
Surendra BG

Hi,

The APs is in another VLAN, the APs have ip from DHCP in the WiSM.

In the vlan of APS the command "ip helper address" points to the direction of the interface management.

Thanks

Claudio

This does not work.. The APs wil get an IP only if the AP is in the same subnet as that of management interface.. Even the IP helper address will not help..

Regards

Surendra

Regards
Surendra BG

Are you sure?.
I have the same topology in others sites, but with WLC 5508s, and this works.

In this case the APs have IP was given by the WiSM.

Yes this doesnot work...

Regards

Surendra

Regards
Surendra BG

this does not work in the WiSM only?

afaik.. this will not work at all..

Regards
Surendra BG

I'm confused!

I believe in something we are not getting it.

this is the topology....

and this is the DHCP leases...

(WiSM-slot2-1) >(WiSM-slot2-1) >show dhcp leases

        MAC                IP         Lease Time Remaining

e8:b7:48:d6:e6:9d    172.23.24.56    23 hours 59 minutes 24 seconds

e8:b7:48:f5:35:46    172.23.24.57    23 hours 59 minutes 22 seconds

e8:b7:48:2c:64:1c    172.23.24.58    23 hours 59 minutes 17 seconds

00:07:7d:2d:69:e5    172.23.24.59    23 hours 59 minutes 13 seconds

e8:b7:48:f5:1f:b4    172.23.24.60    23 hours 59 minutes 23 seconds

00:07:7d:13:06:eb    172.23.24.61    23 hours 59 minutes 29 seconds

e8:b7:48:f5:35:48    172.23.24.63    23 hours 59 minutes 42 seconds

  (WiSM-slot2-1) >

We are talking about access points not joining the WLC, correct ?

1) Do you have DHCP option 43 set up ?

2) Do you have DNS set up to resolve CISCO-CAPWAP CONTROLLER

3) You dont have it in the same broadcast domain. So the anwser is NO...

So do you have 1 or 2 set up ?

"Satisfaction does not come from knowing the solution, it comes from knowing why." - Rosalind Franklin
___________________________________________________________

That would work if you were doing IP FOWRADING on the router. The router will take the AP broadcast and send it to the WLC. Check your router see if you have a IP Forward rule set up on your other deployment.

"Satisfaction does not come from knowing the solution, it comes from knowing why." - Rosalind Franklin
___________________________________________________________

WOW!! i dint know this.. 5+ , worked on a case for hours and it just dint work!! thats y good to be a all round network engineer!!

Regards

Surendra

Regards
Surendra BG

WOW, back at ya!

I was able to finally give back to you for once!

Yup, you add a IP helper of the WLC managment address and you do a IP FORWARD on the router with UDP 5246 and the router will send the request to the WLC (and the other ip helpers as well).

Works great when you dont control DHCP (option 43) or DNS servers.

Works great ... I just used it on a big customer a few weeks ago. After I set it up and get the APs to join I take it back off ...

"Satisfaction does not come from knowing the solution, it comes from knowing why." - Rosalind Franklin
___________________________________________________________

As mentioned above, the APs if they get ip from WiSM module, but not join...

Understood. Next step...

Do you have 1 or 2 set up from my previuos post ?

Get an IP is a totally different process from the AP joining the WLC.

"Satisfaction does not come from knowing the solution, it comes from knowing why." - Rosalind Franklin
___________________________________________________________
Getting Started

Find answers to your questions by entering keywords or phrases in the Search bar above. New here? Use these resources to familiarize yourself with the community: