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New Member

I don't think my DHCP option 43 is working

I get this from the console of the 1130 AG when I reset the button on the AP. I tried giving the CISCO-LWAPP-CONTROLLER.nccvt.k12.de.us the ip address of the management server's AP point but no dice.

thanks

Gary

%LWAPP-5-CHANGED: LWAPP changed state to DISCOVERY

*Mar 1 00:00:32.837: %DHCP-6-ADDRESS_ASSIGN: Interface FastEthernet0 assigned D

HCP address 10.228.50.163, mask 255.255.0.0, hostname ap

Translating "CISCO-LWAPP-CONTROLLER.nccvt.k12.de.us"...domain server (10.228.1.3

)

*Mar 1 00:00:37.109: LWAPP_CLIENT_ERROR: lwapp_name_lookup - Could Not resolve

CISCO-LWAPP-CONTROLLER.nccvt.k12.de.us

1 ACCEPTED SOLUTION

Accepted Solutions

Re: I don't think my DHCP option 43 is working

The other network could be a problem after you connect but I don't think it is your controller issue. Try the date and time fix first. Let me know how that works out. I think your option 43 is not working well. Use option 43 with the IP Address of the Controller. Also, make sure that all the ports on your switches are trunked for the approriate vlans. The answer with the 1131 resides in your controller or network but appears to be your Option 43. I would begin a TAC call on this if you have. They will have you run several LWAPP debugs. I am betting your dns entry or IP address of the controller is not correct. Look at your dns server and see what the name of the controller resolves to. If you are resolving to the AP Manager interface and not the management interface that would be the problem.

21 REPLIES
Bronze

Re: I don't think my DHCP option 43 is working

Could you speak more about what vlan the AP will be plugged into and if that vlan has an ip helper address to the dhcp server?

DNS makes all this stuff go away...I would seriously consider it.

New Member

Re: I don't think my DHCP option 43 is working

In DNS I took the controller name and pointed it to the ip address of the controller but I get this loop of the AP downloading the image and then it gets disassociated etc.

Here is from the console of the AP as it gets the image and then keeps recycling and downloading the image all over again.

extracting c1130-k9w8-mx.123-11.JA3/c1130-k9w8-mx.123-11.JA3 (2812991 bytes)

*Oct 8 19:33:21.160: %LWAPP-5-CHANGED: LWAPP changed state to IMAGE

*Oct 8 19:33:43.150: LWAPP_CLIENT_ERROR_DEBUG: spamCcmDecrypt : sessionId 0x100

0CCC in msg is not valid

*Oct 8 19:33:43.150: LWAPP_CLIENT_ERROR_DEBUG: spamProcessSecureMsg : spamCcmDe

crypt returned failure

*Oct 8 19:33:43.150: LWAPP_CLIENT_ERROR_DEBUG: spamProcessDiscoveryReply : spam

ProcessSecureMsg returned error

extracting c1130-k9w8-mx.123-11.JA3/6701.img (131328 bytes)

extracting c1130-k9w8-mx.123-11.JA3/7101.img (131328 bytes)

extracting info.ver (289 bytes)

Deleting existing version...

Deleting flash:/c1130-k9w8-mx.123-11.JA3...

done.

New software image installed in flash:/c1130-k9w8-mx.123-11.JA3

Configuring system to use new image...done.archive download: takes 50 seconds

*Oct 8 19:34:11.887: image upgrade successfully, system is now reloading

*Oct 8 19:34:11.916: %SYS-5-RELOAD: Reload requested by lwapp image download pr

oc. Reload Reason: NEW IMAGE DOWNLOAD.

*Oct 8 19:34:11.916: %LWAPP-5-CHANGED: LWAPP changed state to DOWN

New Member

Re: I don't think my DHCP option 43 is working

In DNS I took the controller name and pointed it to the ip address of the controller but I get this loop of the AP downloading the image and then it gets disassociated etc.

Here is from the console of the AP as it gets the image and then keeps recycling and downloading the image all over again.

extracting c1130-k9w8-mx.123-11.JA3/c1130-k9w8-mx.123-11.JA3 (2812991 bytes)

*Oct 8 19:33:21.160: %LWAPP-5-CHANGED: LWAPP changed state to IMAGE

*Oct 8 19:33:43.150: LWAPP_CLIENT_ERROR_DEBUG: spamCcmDecrypt : sessionId 0x100

0CCC in msg is not valid

*Oct 8 19:33:43.150: LWAPP_CLIENT_ERROR_DEBUG: spamProcessSecureMsg : spamCcmDe

crypt returned failure

*Oct 8 19:33:43.150: LWAPP_CLIENT_ERROR_DEBUG: spamProcessDiscoveryReply : spam

ProcessSecureMsg returned error

extracting c1130-k9w8-mx.123-11.JA3/6701.img (131328 bytes)

extracting c1130-k9w8-mx.123-11.JA3/7101.img (131328 bytes)

extracting info.ver (289 bytes)

Deleting existing version...

Deleting flash:/c1130-k9w8-mx.123-11.JA3...

done.

New software image installed in flash:/c1130-k9w8-mx.123-11.JA3

Configuring system to use new image...done.archive download: takes 50 seconds

*Oct 8 19:34:11.887: image upgrade successfully, system is now reloading

*Oct 8 19:34:11.916: %SYS-5-RELOAD: Reload requested by lwapp image download pr

oc. Reload Reason: NEW IMAGE DOWNLOAD.

*Oct 8 19:34:11.916: %LWAPP-5-CHANGED: LWAPP changed state to DOWN

Bronze

Re: I don't think my DHCP option 43 is working

Time to call either TAC or Meru!

New Member

Re: I don't think my DHCP option 43 is working

Who is TAc or Meru?

Gary

Re: I don't think my DHCP option 43 is working

Run! Run as fast as you can. Meru is a WLAN vendor that sells a system that violates the wifi alliance and 802.11 standards. They deny it of course but several trade mags have busted them on this. See the article below.

http://www.networkcomputing.com/showitem.jhtml?docid=1207f3_intro

The long and short of it is they violate the duration value built into the standard to monopolize the spectrum around them thus rendering other local WLANs useless. This is a violation not only of the standards but could be interpreted as a violation of the FCC good neighbor rules.

New Member

Re: I don't think my DHCP option 43 is working

I have another very pervasive wireless system in the building. I did not have a problem with the 1010 AP's just the 1130 AG's. Could the other one be jamming me? I have to tell you that this is a heavy duty school building and I have trouble getting through the walls but not this other system.

Any way to deal with this?

Gary

Re: I don't think my DHCP option 43 is working

The other network could be a problem after you connect but I don't think it is your controller issue. Try the date and time fix first. Let me know how that works out. I think your option 43 is not working well. Use option 43 with the IP Address of the Controller. Also, make sure that all the ports on your switches are trunked for the approriate vlans. The answer with the 1131 resides in your controller or network but appears to be your Option 43. I would begin a TAC call on this if you have. They will have you run several LWAPP debugs. I am betting your dns entry or IP address of the controller is not correct. Look at your dns server and see what the name of the controller resolves to. If you are resolving to the AP Manager interface and not the management interface that would be the problem.

New Member

Re: I don't think my DHCP option 43 is working

The time is correct now but it still loops. The APs find the WLC it appears to download and then just keeps looping. In option 43 is it the ap-mamangement address or the management address?

Gary

Re: I don't think my DHCP option 43 is working

Management interface. The MI controlls all functions to and from the controller. The AP manager is used to proxy a lot of info to the APs via the controller.

New Member

Re: I don't think my DHCP option 43 is working

I do have dns pointing to the management ip address not the ap-management address. I have all Cisco switches and I think they are vlan1 but when I changed to controller to vlan 1 it disappeared and I had to use a console cable to the wlc to get it back. It is running untagged at the moment. Actually I have to keep it on layer 2 in the daytime as I have 1 AP that will not show up under layer 3. Those APs are the older 1010s.

Gary

New Member

Re: I don't think my DHCP option 43 is working

This is what I get from the AP-I note the "No more AP manager IP Addresses" hmmmm

Translating "CISCO-LWAPP-CONTROLLER.nccvt.k12.de.us"...domain server (10.228.1.3

) [OK]

*Mar 1 00:00:50.663: LWAPP_CLIENT_ERROR_DEBUG: spamHandleDiscoveryTimer : Found

the discovery response from MASTER Mwar

*Mar 1 00:00:50.673: %LWAPP-5-CHANGED: LWAPP changed state to JOIN

*Mar 1 00:00:50.673: %LINK-5-CHANGED: Interface Dot11Radio0, changed state to a

dministratively down

*Mar 1 00:00:50.674: %LINK-5-CHANGED: Interface Dot11Radio1, changed state to a

dministratively down

*Mar 1 00:00:51.673: %LINEPROTO-5-UPDOWN: Line protocol on Interface Dot11Radio

0, changed state to down

*Mar 1 00:00:51.674: %LINEPROTO-5-UPDOWN: Line protocol on Interface Dot11Radio

1, changed state to down

*Mar 1 00:00:58.673: LWAPP_CLIENT_ERROR_DEBUG: spamHandleJoinTimer: Did not rec

ieve the Join response

*Mar 1 00:00:58.673: LWAPP_CLIENT_ERROR_DEBUG: No more AP manager IP addresses

remain.

*Mar 1 00:00:58.706: %SYS-5-RELOAD: Reload requested by LWAPP CLIENT. Reload Re

ason: DID NOT GET JOIN RESPONSE.

*Mar 1 00:00:58.706: %LWAPP-5-CHANGED: LWAPP changed state to DOWN

Gary

New Member

Re: I don't think my DHCP option 43 is working

When I do a debug on the WLC I get hundreds of these lines concerning the AP that keeps joining and then unjoining.

Wed Oct 10 21:52:25 2007: 00:1d:a1:ec:6a:d8 Received LWAPP IMAGE_DATA_RES from A

P 00:1d:a1:ec:6a:d8

Re: I don't think my DHCP option 43 is working

I don't know if I asked you this or not but did you look under the AP Manager interface and insure that it was tied to the same physical port as the management interface? There used to be a bug in the software that the first time you booted a WLC the ap manager reset itself to port 0. You had to manually reset it to port 1 or port 2, apply it, and then save the configuration. This would allow the APs to download code.

New Member

Re: I don't think my DHCP option 43 is working

Both are set to Port 1 and it is active. The AP says it is downloading the new code. The WLC says it is downloading the code but it errors out when it says there are no more address avaialble from the WLC.

Re: I don't think my DHCP option 43 is working

Im stumped....its TAC time man.

New Member

Re: I don't think my DHCP option 43 is working

Done!!!!!!!!!

The problem was that the directions from Cicso for option 43 in DHCP has a screen shot of the predefined options that is not current with Microsoft DHCP. What happened was that now you have to edit the array and THEN put the ip address of the WLC in there. On their screen shot you can put the ip of the WLC right from that screen. I am attaching the screen shot.

I knew it wasn't talking correctly to DHCP by the error messages etc.

thanks to all who pointed me in the right direction. I almost cried for joy when the AP's joined and stayed.

Gary

New Member

Re: I don't think my DHCP option 43 is working

I resolved my own issue but I can't indicate that.

Gary

Bronze

Re: I don't think my DHCP option 43 is working

Dennis,

I can certainly understand your trepidation as I too was/am an imbiber of the Cisco Kool-aid.

However, I can attest that the Meru products are wi-fi certified.

http://certifications.wi-fi.org/pdf_certificate.php?cid=WFA4807

We are currently involved in a pilot to determine if the Meru products will perform as advertised. I have just completed the remediation of one of our facilities to Meru and have begun the go-live process. I will admit that the site survey for a Meru system is completely against everything I have ever been taught or would sign off on, however, like any activity one does with some discomfort or embarrassment, the more you do it the easier it becomes.

I am intrigued by the way they completely change how you have to think. For instance, they use Time Domain Multiplexing at the controller to determine who talks and when, which effectively eliminates contention between multiple clients. All of my AP?s are set to channel 1 (which was very hard to deal with personally). This keeps me away from microwaves (ch.11) and every default device on the planet on channel 6. The controller decides everything that the client used to and more. Every AP on ?whatever channel you pick? allows for a ?virtual cell? in the sense that the client sees each AP as if it were only one really big AP with one really big cell. Suddenly, my flaky apps might work with PEAP and I anticipate that voice will be clearer with less skips (if any at all) that generate tickets from users with higher than possible expectations from WVoIP.

I don?t want to sound like a cheerleader, but I am curious (but skeptical), about the prospect of not dealing with RRM that doesn?t work, patches to fix bugs from the last firmware upgrade that was supposed to fixed one bug and created ten more, etc?It?s sort of like Heather Locklear telling you she?d like to sleep with you; the idea sounds really good, but I?m not all in just yet. (No pun intended).

Anyway, I urge you to research everything you can about any product you see. I can?t remember anything about my autonomous networks that were so horrible that they or I deserved LWAPP.

If this pilot goes well, I will personally unscrew the Cisco gear out of the rack and use it for an end table in my office. To be honest, I like what I see so far.

As for not playing nice with Cisco AP?s in the same environment, I don?t care, since they will be all or none anyway.

Your thoughts and comments are appreciated, but I am too tired to get into a whizzing contest, so if you read some literature and have questions that need answers from a boot on the ground and not a sales weasel, I?ll do my best. If you just want to tell me what an asshat I am, I?ll just agree and save you the step.

Be well-

JP

Re: I don't think my DHCP option 43 is working

I understand fully that Meru is currently WiFi compliant, but as several trade magazines have shown, they play games with the duration values of the wifi standard thus improving their client connection times but killing any (not just Cisco) local WLANs ability to be usable. Imagine spending 40k on a wireless network only to find out that the guy across the street is keeping it from workng. I have seen this myself in a shared warehouse environment. You'd be pretty upset and calling the FCC about what to do next. It is only a matter of time before someone gets mad enough to report it. The resulting fallout from a "good neighbor" violation will be devastating as Meru has been repeatedy made aware of the problem and can not argue that they didn't know. I too get frustrated at times with LWAPP, but in 99.9% of the time the problem isn't whether you use Cisco, Meru, or some other enterprise class vendor. The problem is usually in configuration, deployment, or just good RF sense. The bottom line is that Meru, when compared to Cisco and Aruba, has only a very small piece of the market and will probably only be around long enough for someone to buy them or they drop off the radar. I wouldn't want to justify to upper management that I bought something "really cool" and now I can get support or parts. Call me crazy, but there is something to be said about buying from the largest network company in the world. They will always be there.

Please read the link that I posted earlier. That is from a completely unbiased source and the last time I checked, Meru's WiFi status was coming up for review.

Bronze

Re: I don't think my DHCP option 43 is working

Dennis, Thanks for the thoughtful comments. Fortunately, in my case, Upper Management was the catalyst for deploying Meru. I would never have tried it had it not been from a seagull manager from the top. I had to learn it before I could test and use it.

I will tell you that troubleshooting Meru sukks. All the tools that used to be available are gone to me. When a device roams to another AP, the AP MAC address doesn't change, since the device doesn't see a change. I have to monitor the controller to see where I went. I still don't care for their 100mW deployment practices (anybody can do that). But so far, Voice is doing well, although I ended up putting in almost as many AP's as I prescribed with Cisco.

I do like having access to an engineer who will show up whenever I call him. I do like the ease of setup and deployment. I am not convinced that I won't need as many AP's as Cisco (which is a big selling point, particularly to the guy with the checkbook), but right now all bets are hinged on user density. We go live this coming week and we will see if we are any better off.

Just so you know, up until about a month ago, I agreed with everything you said. My luck Cisco will buy them and try to 'fix' all the stuff that works..

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