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New Member

Do I Need DNS and DHCP option 43 both configured?

Hi,

I have a 10.0.102.0 network and my DHCP server is sitting on 172.16.12.0 network.

I have configured the WLC 2106 (Firmware 4.2.205.0) but I am not sure if that was done properly.

I have added Cisco-LWAPP-CONTROLLER option in the DNS server tied to the Management IP on the WLC (10.0.102.210)

Now,

My AP (1522 - Layer 3 only) when consoled into to monitor during boot up keeps saying

"No More AP Manager IP Address Remain " it also says it "did not received a joined response from the controller"

The Big question is Do I need to add the DHCP option 43 in order to get the AP to start talking to the WLC.

Cisco mentioned 5 methods.

1 - 255.255.255.255

2 - DHCP option 43

3 - DNS

4 - OTAP

5 - Manual

For option 5 which I would prefer (Manual), I could not find the mode button (is it the reset button?) to enable LWAPP because it cannot accept commands

LWAPP AP IP address (etc)

After posting this I'll go ahead and perform option 43 and see what happens.

I have attached the AP log file for your information

10 REPLIES

Re: Do I Need DNS and DHCP option 43 both configured?

Hi,

10.0.102.210 is IP of "interface management" or IP of "interface ap-manager" ?

You must use IP of "interface ap-manager".

New Member

Re: Do I Need DNS and DHCP option 43 both configured?

10.0.102.210 is the IP of the management.

That’s the IP I assigned the DNS name CISCO-LWAPP-CONTROLLER

So how will I use the IP of the interface ap-manager

Silver

Re: Do I Need DNS and DHCP option 43 both configured?

Your WLC discovery is working great. The AP discovered DoE_Fode_2106 and is trying to join it.

However, your WLC DoE_Fode_2106 is not sending a join response.

If I had to guess, without any more information, I'd say you have no added this MESH AP's mac address to the mac-filter list and so the WLC is not sending a JOIN Response since the AP is not authorized.....

FYI: Discovery methods should ALWAYS point to the Management IP address, not the AP-Manager.

New Member

Re: Do I Need DNS and DHCP option 43 both configured?

Thanks I will do that and advice outcome.

Hall of Fame Super Gold

Re: Do I Need DNS and DHCP option 43 both configured?

How many APs does your 2106 support and how many APs are currently registered?

New Member

Re: Do I Need DNS and DHCP option 43 both configured?

Leolaohoo

OK right now I am doing a bench test connecting to DHCP server.

I have 1 AP Mesh AP (AIR-LAP1522AG-N-K9) 2 are still in the box.

I guess according to cisco, 2106 supports up to 6APs

Hall of Fame Super Gold

Re: Do I Need DNS and DHCP option 43 both configured?

WLC firmware 4.2.205 does NOT support 1520. 

Cisco Aironet 1000, 1100, 1130, 1200, 1230AG, 1240, 1250, and 1300 Series Lightweight Access Points

1520 is supported from (gulp!) 5.2.X and later.

http://www.cisco.com/en/US/docs/wireless/controller/release/notes/crn501480.html#wp384168

New Member

Re: Do I Need DNS and DHCP option 43 both configured?

Thanks

I will now proceed with the upgrade of the firmware.

Hall of Fame Super Gold

Re: Do I Need DNS and DHCP option 43 both configured?

Please don't forget to rate our posts.  Thanks.

New Member

Re: Do I Need DNS and DHCP option 43 both configured?

Haing no idead about Cisco Wireless and to be confident in sitting for a CCNA wireless after going throu

gh the POSTS,,its a perfect 10 out of 10.

Very Very helpful.

QUick response.

Straight to the point,

Open discussions and what else can I ask for?

thanks heaps

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